Instructions for Reporting for the 

2006 Partial Updating of the TSCA 

Chemical Inventory Database 

U.S. Environmental Protection Agency 

Office of Pollution Prevention and Toxics 

Economics, Exposure and Technology Division 

November 2006 
Instructions for Reporting for the 

2006 Partial Updating of the TSCA 

Chemical Inventory Database 

U.S. Environmental Protection Agency 

Office of Pollution Prevention and Toxics 

Economics, Exposure and Technology Division 

November 2006 
HIGHLIGHTS OF 2006 INVENTORY UPDATE REPORTING (IUR)

y Information from calendar year 2005 must be reported during the 2006 IUR 

submission period, August 25 to December 23, 2006 (40 CFR 710.53). 

y Reporting is required for all chemical substances listed on the TSCA Inventory, both 

organic and inorganic, other than polymers, microorganisms, naturally occurring 

chemical substances, and certain forms of natural gas (40 CFR 710.45 and 710.46). 

y The production volume threshold that triggers reporting has been raised from 10,000 

pounds to 25,000 pounds (40 CFR 710.48(a)). 

y For chemicals manufactured (including imported) at a site in amounts equal to or 

greater than 300,000 pounds, additional reporting of processing and use information is 

required (40 CFR 710.52(c)(4)). 

y Partial reporting exemptions are provided for certain chemical substances termed 

“petroleum process streams” for purposes of IUR and for specific chemical substances 

where EPA has identified a low current interest in processing and use information 

related to the chemical. Only site identification and manufacturing information is 

required to be reported for these chemicals (40 CFR 710.46(B)(1)). 

y Inorganic chemical substances are subject to IUR requirements for the first time in 

2006. During the 2006 submission period, manufacturers of inorganic chemical 

substances are exempted from the requirement to report processing and use 

information that is otherwise required if a person manufacturers 300,000 lbs or more of 

an inorganic chemical substance (40 CFR 710.46(b)(3)). 

y Chemical substances (other than naturally-occurring chemical substances) that are 

otherwise eligible for a partial or full exemption from reporting requirements are 

subject to full reporting requirements if they are the subject of any of certain TSCA 

actions (40 CFR 710.46). Many of these substances are listed in Appendix C. 

y All information submitted in Inventory Update Reporting may be claimed as 

confidential. Additional information must be submitted to substantiate confidentiality 

claims related to chemical identity and plant site identity (40 CFR 710.58). 

y Companies are encouraged to report to EPA using the 2006 IUR Electronic Reporting 

Software (eIUR). There is no minimum number of chemical substances required for 

electronic reporting. 

y For questions concerning IUR reporting or to request additional forms, contact the 

TSCA Hotline, Monday through Friday, 8:30 am to 5:00 pm, Eastern Standard Time at 

(202) 554-1404. You may also contact the TSCA Hotline by email at tscahotline@epa.gov. 
i

TABLE OF CONTENTS

PREFACE 

1.0 Introduction.................................................................................................................... 1-1 

1.1 Background and Statutory Authority................................................................... 1-1 

1.2 Recent Changes to IUR Reporting Requirements ............................................... 1-1 

2.0 Reporting Requirements................................................................................................ 2-1 

Figure 2-1. Decision Logic Diagram for Determining Your IUR 

Reporting Requirements.............................................................. 2-1 

2.1 Step I: Is Your Chemical Substance Subject to the IUR regulation? ................. 2-1 

Figure 2-2. Decision Logic Diagram for Evaluating Step I.................... 2-2 

2.1.1 Is Your Chemical Substance in the TSCA Inventory? ............................ 2-2 

2.1.1.1 What is the TSCA Inventory?...................................................... 2-3 

2.1.1.2 How Do You Determine if a Chemical Substance is Listed in the 

TSCA Chemical Substance Inventory? ....................................... 2-3 

2.1.2 Is Your Chemical Substance Excluded from Reporting? ........................ 2-4 

2.1.2.1 Polymers ...................................................................................... 2-4 

2.1.2.2 Microorganisms........................................................................... 2-5 

2.1.2.3 Certain Forms of Natural Gas...................................................... 2-5 

2.1.2.4 Naturally Occurring Substances .................................................. 2-5 

2.1.3 Must Your Chemical, which is Generally Exempt, nevertheless be 

Reported? ................................................................................................. 2-6 

2.2 Step II: Are You a Manufacturer Who Is Required to Report? .......................... 2-6 

Figure 2-3. Decision Logic Diagram for Evaluating Step II .................. 2-7 

2.2.1 Did You Manufacture the Reportable Substance in Quantities of 25,000 

Pounds or More?...................................................................................... 2-7 

2.2.1.1 Meeting the 25,000-Pound Annual Production Volume Threshold2-8 

2.2.1.2 Special Provisions for Importers.................................................. 2-9 

2.2.2 Are You a Small Manufacturer?.............................................................. 2-9 

2.2.3 Do You Qualify for Any Other Reporting Exemptions?....................... 2-11 

2.3 Step III: What Information Must You Report?................................................. 2-12 

Figure 2-4. Decision Logic Diagram for Evaluating Step III............... 2-13 

2.3.1 Do You Manufacture and/or Import the Reportable Substance in 

Quantities of 300,000 Pounds or More? ................................................ 2-13 

2.3.2 Does Your Reportable Substance Qualify for a Partial Exemption?..... 2-14 

2.3.2.1 Partial Exemption for Listed Chemicals that are termed Petroleum 

Process Streams for Purposes of IUR........................................ 2-15 

2.3.2.2 Partial Exemption for Listed Chemical Substances................... 2-15 

2.3.2.3 Partial Exemption for Inorganic Substances in 2006................. 2-15 

2.3.3 Chemical Substances Which Are Not Given a Partial Exemption ........ 2-15 

3.0 When You Must Report................................................................................................. 3-1 

4.0 Reporting the IUR Information...................................................................................... 4-1 

4.1 Certification ......................................................................................................... 4-1 

4.1.1 Signature .................................................................................................. 4-1 

4.1.2 Date Signed.............................................................................................. 4-1 

4.1.3 Name and Official Title ........................................................................... 4-1 
TABLE OF CONTENTS (Continued) 

ii

4.2 Reporting Standards............................................................................................. 4-1 

4.3 Part I - Section A Company Information............................................................. 4-2 

4.3.1 Company Name (Block 1.A.1) ................................................................ 4-3 

4.3.2 Company Dun & Bradstreet Number (Block 1.A.2) ............................... 4-3 

4.4 Part I - Section B Site Information1..................................................................... 4-3 

4.4.1 Site Name (Block 1.B.1).......................................................................... 4-3 

4.4.2 Site Dun & Bradstreet Number (Block 1.B.2)......................................... 4-3 

4.4.3 Site Street Address (Blocks 1.B.3 through 1.B.8) ................................... 4-3 

4.5 Part I - Section C Technical Contact Information ............................................... 4-4 

4.5.1 Technical Contact Name (Block 1.C.1)................................................... 4-4 

4.5.2 Technical Contact Telephone Number and Email Address (Blocks 1.C.2 

and 1.C.3)................................................................................................. 4-4 

4.5.3 Technical Contact Mailing Address (Blocks 1.C.4 through 1.C.8)......... 4-4 

4.6 Part II - Section A Chemical Identification ......................................................... 4-4 

4.6.1 Chemical Identifying Number (Block 2.A.1) .......................................... 4-4 

4.6.2 ID Code (Block 2.A.2)............................................................................. 4-5 

4.6.3 Chemical Name (Block 2.A.3)................................................................. 4-6 

4.7 Part II - Section B Manufacturing Information ................................................... 4-6 

4.7.1 Confidentiality of Company Information (Block 2.B.1) ......................... 4-6 

4.7.2 Confidentiality of Site Information (Block 2.B.2)................................... 4-6 

4.7.3 Confidentiality of Technical Contact Information (Block 2.B.3)............ 4-7 

4.7.4 Site Limited (Y/N) (Block 2.B.4)............................................................ 4-7 

4.7.5 Activity (Manufacture and/or Import) (Block 2.B.5) .............................. 4-7 

4.7.6 Manufactured Production Volume (Block 2.B.6).................................... 4-7 

4.7.7 Imported Production Volume (Block 2.B.7)............................................ 4-8 

4.7.8 Number of Workers (Block 2.B.8) .......................................................... 4-8 

4.7.9 Maximum Concentration (Block 2.B.9) .................................................. 4-9 

4.7.10 Physical Form and Percentage of Production Volume (Blocks 2.B.10 

through 2.B.15)...................................................................................... 4-10 

4.8 Part III - Processing and Use Information ......................................................... 4-10 

4.8.1 Part III - Section A: Industrial Processing and Use Data (Blocks 3.A.1 

through 3.A.10)...................................................................................... 4-11 

4.8.1.1 Type of Process or Use Code..................................................... 4-11 

4.8.1.2 Five-Digit NAICS Code ............................................................ 4-12 

4.8.1.3 Industrial Function Category (IFC) Code.................................. 4-12 

4.8.1.4 Percentage of Production Volume ............................................. 4-13 

4.8.1.5 Number of Sites Code................................................................ 4-14 

4.8.1.6 Number of Workers Code.......................................................... 4-15 

4.8.2 Part III - Section B: Commercial and Consumer Use Data (Blocks 3.B.1 

through 3.B.10)...................................................................................... 4-16 

4.8.2.1 Commercial and Consumer Product Category Code ................. 4-16 

4.8.2.2 Use in Product(s) Intended for Children.................................... 4-17 

4.8.2.3 Percentage of Production Volume ............................................. 4-19 

4.8.2.4 Maximum Concentration Code.................................................. 4-19 

5.0 How to Assert Confidentiality Claims........................................................................... 5-1 

5.1 Chemical Identity................................................................................................. 5-1 
TABLE OF CONTENTS (Continued) 

iii

5.2 Site Identity.......................................................................................................... 5-3 

5.3 Additional Data Elements.................................................................................... 5-4 

6.0 How to Submit Your Form U to EPA............................................................................ 6-1 

6.1 Sending Forms to EPA......................................................................................... 6-1 

6.2 Submitting Forms through the Central Data Exchange (CDX)........................... 6-2 

6.3 Correcting Errors in Submissions for Original Inventory ................................... 6-3 

6.4 Recordkeeping Requirements.............................................................................. 6-4 

6.5 Special Instructions for Importers........................................................................ 6-4 

7.0 How To Obtain Copies of Documents Cited in This Guidance Document................... 7-1 

7.1 Obtaining Copies of the TSCA Regulations........................................................ 7-1 

7.2 Obtaining Copies of the Public Portion of the TSCA Inventory ......................... 7-1 

7.3 Obtaining Copies of Form U................................................................................ 7-2 

8.0 How to Request Assistance with IUR Reporting........................................................... 8-1 

Appendix A - 2006 Form U 

Appendix B - Glossary 

Appendix C - Chemical Substances that are the Subject of Certain TSCA Orders, 

Proposed or Final TSCA Rules, or Relief Granted under Civil 

Actions 

Appendix D - Chemicals Partially Exempt from Reporting in 2006 

Appendix E - Descriptions of Codes for Reporting Industrial, Commercial, and Consumer 

Processing and Use Information 
iv

LIST OF FIGURES

2-1 Decision Logic Diagram for Determining Your IUR Reporting Requirements.............. 2-1 

2-2 Decision Logic Diagram for Evaluating Step I ............................................................... 2-2 

2-3 Decision Logic Diagram for Evaluating Step II .............................................................. 2-7 

2-4 Decision Logic Diagram for Evaluating Step III........................................................... 2-13 
v

LIST OF TABLES

1-1 Changes Made to IUR Regulations by the 2003 and 2005 Amendments........................ 1-2 

2-1 Chemical Substances Covered by the Exemption for Certain Forms of Natural Gas ..... 2-5 

2-2 Examples of Evaluating Substances for the Naturally Occurring Exemption (40 CFR 

710.46(a)(3)) .................................................................................................................... 2-6 

2-3 Annual Production Volume Threshold Examples ........................................................... 2-8 

2-4 Small Manufacturer Exemption Examples (40 CFR 710.48)........................................ 2-10 

2-5 Examples of Manufacturing/Importing Activities Under Circumstances Which Do/Do 

Not Require Reporting................................................................................................... 2-12 

2-6 Examples of Reporting Requirements for Information Described in 40 CFR 710.52(c)(4) 

(See IUR Form U, Part III ) ........................................................................................... 2-14 

4-1 ID Code for Chemical Identifying Numbers ................................................................... 4-6 

4-2 Codes for Reporting Number of Workers Reasonably Likely to be Exposed................. 4-8 

4-3 Codes for Reporting Maximum Concentration................................................................ 4-9 

4-4 Codes Corresponding to Industrial Processing or Use Operations................................ 4-11 

4-5 Codes for Reporting Industrial Function Categories (IFCs).......................................... 4-12 

4-6 Examples of Reporting Industrial Processing and Use Information.............................. 4-14 

4-7 Codes for Reporting Numbers of Sites .......................................................................... 4-15 

4-8 Codes for Reporting Number of Workers Reasonably Likely to be Exposed During 

Processing and Use ........................................................................................................ 4-15 

4-9 Codes for Reporting Commercial and Consumer Product Categories .......................... 4-17 

4-10 Examples of Products Intended for Children................................................................. 4-18 

5-1 Special Considerations for Asserting Confidentiality Claims ......................................... 5-1 

5-2 Substantiation Questions To Be Answered When Making Chemical Identity CBI Claims 

(from 40 CFR 710.58(b)(1)) ............................................................................................ 5-2 

5-3 Substantiation Questions To Be Answered When Making Plant Site Identity CBI Claims 

(from 40 CFR 710.58(c)(1)) ............................................................................................ 5-3 
vi

PREFACE

 On January 7, 2003 and December 19, 2005, the U.S. Environmental Protection Agency 

(EPA) promulgated final rules amending the Inventory Update Reporting (IUR) regulations (see 

40 CFR part 710). Sites affected by the IUR rule are subject to the revised reporting 

requirements beginning in 2006 for manufacturing and/or importing activities conducted during 

the 2005 calendar year. The first reports are due by December 23, 2006. A reporting form 

(Form U) is available for sites to use when reporting to EPA. A copy of Form U is included in 

Appendix A of this document and is available on the IUR website at www.epa.gov/oppt/iur/. 

Reporting through the internet or on electronic media is encouraged. 

 The primary goal of this document is to help the regulated community comply with the 

requirements of the IUR regulations. This document does not substitute for those regulations, 

nor is it a regulation itself. It does not impose legally binding requirements on the regulated 

community or on EPA. Determinations regarding compliance with the IUR requirements will be 

based solely on the Toxic Substances Control Act (TSCA. section 8(a), 15 U.S.C. section 

2607(a)) and the IUR regulations (40 CFR Part 710, subpart C). 

 This guidance document contains the following chapters and appendices: 

y Chapter 1 - Introduction to IUR reporting and changes made since the 2002 

reporting cycle. 

y Chapter 2 – Reporting Requirements to determine which chemical substances are 

reportable, who must report, and what information must be reported. 

y Chapter 3 - When you must report. 

y Chapter 4 - Completing Form U. 

y Chapter 5 – How to Assert Confidentiality Claims. 

y Chapter 6 – How to Submit Your Form U to EPA. 

y Chapter 7 – How to Obtain Copies of Documents Cited in This Guidance 

Document. 

y Chapter 8 – How to Request Assistance with IUR reporting. 

y Appendix A – Reporting Form. 

y Appendix B - Glossary. 

y Appendix C - Chemical Substances that are the Subject of Certain TSCA Orders, 

Proposed or Final TSCA Rules, or Relief Granted under Civil Actions. 

y Appendix D – Chemicals Partially Exempt from Reporting in 2006. 
vii

y Appendix E – Descriptions of Codes for Reporting Industrial, Commercial, and 

Consumer Processing and Use Information. 
Chapter 1.0 Introduction 

1-1

1.0 Introduction 

1.1 Background and Statutory Authority 

 In 1977, the U.S. Environmental Protection Agency (EPA) promulgated a rule under the 

Toxic Substances Control Act (TSCA) section 8(a), 15 U.S.C. 2607(a), to compile and keep 

current an inventory of chemical substances in commerce in the U.S. This inventory is called the 

TSCA Chemical Substance Inventory (TSCA Inventory). In 1986, EPA promulgated the 

Inventory Update Reporting (IUR) regulations, also under TSCA section 8(a), to facilitate the 

periodic updating of the TSCA Inventory database and to otherwise support activities associated 

with implementing TSCA. As originally promulgated, the IUR required chemical manufacturers 

(including importers) to report to EPA every 4 years the identity of chemical substances 

manufactured (including imported) annually in quantities of 10,000 pounds or more at each plant 

site they owned or controlled. In 2003 EPA adjusted the universe of chemicals and plant sites 

that are required to report, and the type of information reported. In 2005, EPA changed the 

reporting frequency to once every 5 years, revised the manner in which amounts of a chemical 

substance manufactured or imported must be reported, and changed the submission period for 

reporting after 2006. 

 This document, which pertains to EPA IUR reporting during 2006, updates the previous 

guidance issued for reporting in 2002 (EPA 749-B-02-001) to incorporate instructions relevant to 

the amendments to the IUR regulations promulgated on January 7, 2003 and December 19, 2005. 

 It provides detailed information and examples to assist manufacturers and importers in reporting 

under the IUR. However, this document is not a substitute for the IUR regulations in 40 

CFR Part 710, subpart C. To the extent that any inconsistencies exist between the IUR 

regulations and this document, the requirements as promulgated in the regulations should be 

followed. Manufacturers and importers of chemical substances should carefully review the IUR 

regulations to determine whether they are required to report and the information to be reported. 

 Persons required to comply with the IUR regulations should have a thorough 

understanding of the TSCA Inventory and the procedures available to determine whether a 

substance is included in the TSCA Inventory. Chapter 7 of this guidance document explains 

how to obtain copies of TSCA regulations and the non-confidential TSCA Chemical Substance 

Inventory. 

1.2 Recent Changes to IUR Reporting Requirements 

 In 2003 and 2005, EPA made changes to the IUR requirements, which are highlighted in 

Table 1-1 and explained later in this document. In addition, EPA revised the IUR reporting form 

to incorporate these changes. Appendix A contains a sample of the reporting form for reporting 

in 2006. 
Chapter 1.0 Introduction 

1-2

Table 1-1. Changes Made to IUR Regulations by the 2003 and 2005 Amendments 

Reporting threshold 

increased 

The manufacture and/or import volume reporting threshold was raised from 10,000 lbs/yr to 

25,000 lbs/yr (40 CFR 710.48(a)). 

New threshold 

added 

A larger-volume reporting threshold of 300,000 lbs/yr was added for the reporting of 

processing and use information (40 CFR 710.52(c)(4)). 

Reporting of 

manufacturing 

exposure-related 

information added 

New data elements include: (1) the number of workers (in ranges) reasonably likely to be 

exposed to the chemical substance at the site of manufacture or import, (2) the physical 

form(s) of the substance as it is sent off-site, (3) the percentage (rounded to the closest 

10%) of the total production volume associated with each physical form, and (4) the 

maximum concentration (within a range) of the chemical substance at the time it is reacted 

onsite to produce a different chemical substance or as it is sent off-site (40 CFR 710.52(c)).

Reporting of 

industrial, 

commercial, and 

consumer exposurerelated information 

added 

New data elements to be reported by certain larger-volume (i.e., 300,000 lbs/yr or more) 

manufacturers (including importers) include: 

 Industrial Processing and Use Information (40 CFR 710.52(c)(4)(i)) 

y Type(s) of industrial processing or use operation at each site and at downstream 

sites. 

y North American Industrial Classification System (NAICS) code(s) that best 

describe the industrial activities associated with the processing or use of the 

substance. 

y Industrial function categories of the chemical substances during the processing or 

use operation for each NAICS code reported. 

y Information associated with each processing or use operation/NAICS/industrial 

function category combination: 

– Percentage of production volume; 

– Number of processing and use sites; and 

– Number of workers reasonably likely to be exposed. 

 Commercial and Consumer Use Information (40 CFR 710.52(c)(4)(ii)) 

y Commercial and consumer product category of use. 

y Indication of the presence of the substance in consumer products intended for use 

by children up to the age of 14. 

y Percentage of production volume associated with each commercial and consumer 

product category. 

y Maximum concentration of the chemical substance in each commercial and 

consumer product category. 

Reporting 

requirements for 

site identity added 

The county or parish in which the site is located must now be reported (40 CFR 

710.52(c)(2)(i)). 

Technical contact 

information 

The name of a person who will be able to answer questions about the information submitted 

to EPA must be provided along with that person’s full mailing address, telephone number 

and e-mail address (40 CFR 710.52(c)(2)(i)). 

Reporting of 

inorganic chemical 

substances added 

In 2006, submission of IUR information on inorganic chemical substances will be required 

for the first time. For 2006 reporting, a partial reporting exemption for inorganic chemical 

substances is in place (i.e., no reporting of industrial, commercial, and consumer processing 

and use information is required for these chemicals). In future years, manufacturers must 

fully report industrial processing and use and commercial and consumer use information for 

these substances if they manufacture (including import) 300,000 lbs. or more of a substance 

at a site during calendar year 2005 and calendar years at 5-year intervals thereafter (40 CFR 

710.46(b)(3)). 

Natural gas 

exemption added 

A full exemption from IUR reporting for certain forms of natural gas was added (40 CFR 

710.46(a)(4)). 
Chapter 1.0 Introduction 

1-3

Table 1-1. Changes Made to IUR Regulations by the 2003 and 2005 Amendments 

Petroleum process 

stream partial 

exemption added 

A partial reporting exemption was created for certain listed chemical substances which are 

termed “petroleum process streams” for purposes of IUR (40 CFR 710.46(b)(1)). 

Specific chemical 

substances partial 

exemption added 

A partial exemption was created for specific chemical substances where EPA identified that 

there is a low current interest in the IUR processing and use information related to the 

chemical substance (40 CFR 710.46(b)(2)). 

Records retention 

period extended 

The records retention period was extended from 4 to 5 years (40 CFR 710.57). 

Reporting period 

changed 

The period for which reporting is required was changed from a corporate fiscal- year basis 

to a calendar-year basis (40 CFR 710.52). 

Reporting frequency 

changed 

Reporting is required for information generated during calendar year 2005 and for calendar 

years at 5-year intervals thereafter. Previously, reporting was required every 4 years. 

Submission Period 

Changed 

In 2006, the submission period remains August 25 to December 23. In 2011 and 

subsequent years at 5-year intervals thereafter, the submission period will be June 1 to 

September 30. 

Up-front 

substantiation for 

plant site CBI 

claims required 

Up-front written substantiation of plant site identity confidentiality claims is now required 

for IUR submissions to EPA (40 CFR 710.58(c)). This requirement is similar to the upfront substantiation requirement that has been required in the past for chemical identity 

claims. 
Chapter 2.0 Reporting Requirements 

2-1

2.0 Reporting Requirements 

 This chapter explains the reporting requirements for the 2006 IUR reporting cycle. 

Reporting requirements have changed since the last IUR reporting cycle in 2002. There are three 

steps to consider in determining your reporting requirements for each chemical substance that 

you manufacture in or import into the United States: 

y Step I: Is your chemical substance subject to the IUR regulation? 

y Step II: Are you a manufacturer (or importer) who is required to report? 

y Step III: Determine what information must be reported. 

Figure 2-1 is a decision logic diagram summarizing these steps. 

STEP II: 

Are you a 

manufacturer (or 

importer) required 

to report? 

YOU DO 

NOT NEED 

TO 

REPORT. 

STEP I: 

Is your chemical 

substance subject to 

the IUR regulation? 

STEP III 

Determine what information must be reported. 

Yes

Yes No

No

Figure 2-1. Decision Logic Diagram for Determining Your IUR Reporting Requirements 

This chapter discusses each of these steps and the associated reporting requirements in more 

detail. Appendix A contains a sample Form U and Appendix B provides definitions of certain 

terms used for IUR reporting. 

2.1 Step I: Is Your Chemical Substance Subject to the IUR regulation? 

 Reporting is generally required in 2006 under the IUR regulations for a chemical 

substance that is manufactured or imported if the chemical substance is in the TSCA Inventory 

as of August 25, 2006 and not specifically exempted by 40 CFR 710.46. The following three 

questions may assist you in determining if you must report when you manufacture or import a 

chemical substance: 
Chapter 2.0 Reporting Requirements 

2-2

y Is your substance included in the TSCA Inventory? 

y Is your substance exempt from reporting because it is a polymer, a 

microorganism, an exempt form of natural gas, or a naturally occurring chemical 

substance? 

y If your substance is generally exempt from reporting in accordance with the IUR 

regulation, must you nevertheless report because your substance is the subject of 

any of certain actions under TSCA? 

Figure 2-2 presents a decision logic diagram to assist you in answering these questions. The 

following subsections explain each question in greater detail. 

Is your chemical 

substance generally 

exempt from 

reporting? 

(710.46(a)) 

YOU DO 

NOT 

NEED TO 

REPORT.

Is your substance 

included in the 

TSCA Inventory?

(710.45 and 

710.53) 

EVALUATE STEP II. 

Yes

Yes 

No 

No

STEP I: 

Is your chemical substance subject to the IUR 

regulation? 

Is your chemical 

the subject of any 

of certain actions 

under TSCA? 

(710.46) 

Yes

No 

Figure 2-2. Decision Logic Diagram for Evaluating Step I 

2.1.1 Is Your Chemical Substance in the TSCA Inventory? 

 The following subsections provide information to determine if your chemical substance is 

listed in the TSCA Inventory. 
Chapter 2.0 Reporting Requirements 

2-3

2.1.1.1 What is the TSCA Inventory?

 Authorized by section 8(b) of TSCA, the TSCA Inventory is a list of chemical substances 

manufactured or imported for commercial purposes in the United States. The TSCA Inventory 

was originally compiled from reports submitted in 1978 and 1979 by manufacturers, importers, 

and certain processors of chemicals in commerce during those years. Subpart A of 40 CFR Part 

710 prescribes criteria for including a substance in the TSCA Inventory. New chemical 

substances are added to the TSCA Inventory when companies that have submitted 

Premanufacture Notifications (PMNs) to EPA under section 5 of TSCA notify EPA that they 

have begun to manufacture or import the chemical substance (under 40 CFR 720.102). 

 EPA keeps a Master Inventory File, which is the authoritative list of all the chemical 

substances reported to EPA for inclusion in the TSCA Inventory. EPA also makes the nonconfidential portion of the Inventory file, commonly referred to as the Public Inventory, 

available to the general public. The Public Inventory does not contain the specific identities of 

chemical substances that have been claimed as TSCA Confidential Business Information (CBI); 

it only contains generic chemical names for these confidential chemical substances. See 

Chapter 7 of this document for information on obtaining copies of the Public Inventory. 

2.1.1.2 How Do You Determine if a Chemical Substance is Listed in the TSCA 

Chemical Substance Inventory?

 The following methods may help you determine if your chemical substance is listed in 

the TSCA Inventory: 

y Locate the substance in the public portion of the TSCA Inventory (see Chapter 7 

for more information); 

y Search company records to determine if the substance was previously reported to 

EPA under the IUR; 

y Search company records for a PMN or other communication with EPA that 

confirmed the substance was in the TSCA Inventory; and 

y Search company records for a Notice of Commencement of manufacture or 

import for a PMN substance that was submitted to EPA. 

 Several commercial databases have 

incorporated the public portion of the TSCA 

Inventory (which excludes substances with 

confidential identities) and can indicate whether a 

given chemical substance is included in that portion 

of the TSCA Inventory. Because these databases are 

not generated or reviewed by EPA, the Agency 

cannot guarantee the accuracy of the information in 

these databases. If a commercial database that you use fails to include all reportable chemicals 

and, as a result, you fail to report information for these chemicals, you may be in violation of 

TSCA (40 CFR 710.1(c)). Note that hydrates are not listed in the TSCA Inventory; however, 

Hydrates are not listed in the TSCA 

Inventory. However, you may be 

required to report using the CAS registry 

number of the corresponding anhydrous

form. Adjust the reported production 

volume to exclude water. 
Chapter 2.0 Reporting Requirements 

2-4

you are required to report using the CAS registry number of the corresponding anhydrous form 

if the production volume of the anhydrous form and other requirements which trigger reporting 

are met. 

2.1.2 Is Your Chemical Substance Excluded from Reporting? 

 Four groups of substances, though 

included in the TSCA Inventory, are largely 

excluded from reporting under the IUR 

regulation. These groups are polymers, 

microorganisms, certain forms of natural gas, 

and naturally occurring substances. Refer to 40 

CFR 710.46(a) for precise definitions of these 

groups. Polymers, certain forms of natural gas, and microorganisms are not excluded from 

reporting when they are the subject of any of certain TSCA actions. See Section 2.1.3 for more 

details. 

Polymers, microorganisms, and certain 

forms of natural gas, are not excluded from 

reporting when they are the subject of any of 

certain TSCA actions. See Section 2.1.3 for 

more details.

 Certain petroleum process streams and other chemical substances listed in 40 CFR 

710.46(b) are generally partially exempt from IUR reporting, i.e. processing and use information 

need not be reported for these chemicals. Inorganic substances, which were previously 

excluded, are no longer excluded from IUR reporting; however, inorganic substances are exempt 

from the requirement to report processing and use information for the 2006 submission period 

only. See Section 2.3.2 for further information. With the exception of naturally occurring 

substances, any substance that is the subject of any of certain TSCA or of certain other TSCA 

actions is not exempt and full reports including processing and use information must be 

submitted for these chemical substances. See 40 CFR 710.46 and section 2.1.3 of this document 

for further information. 

 To help identify substances that are exempt from reporting under the IUR regulation, 

EPA has labeled most of these substances in the TSCA Inventory with an “XU” flag. Note that 

you are advised to use the flag only as a guide; submitters are responsible for verifying 

exemptions. Also note that if a chemical with an XU flag subsequently becomes the subject of 

any of certain TSCA actions, the substance is subject to the reporting requirements 

notwithstanding the XU flag. If a substance does not bear an “XU” flag and section 710.46 of 

the IUR regulation does not provide sufficient guidance to determine whether the substance is 

exempt, contact the TSCA Hotline at (202) 554-1404 for assistance. Flags only apply to fully 

exempt substances; partially exempt substances are not flagged. 

2.1.2.1 Polymers

Polymers are typically exempt from IUR reporting. The IUR definition of polymer is 

sufficiently broad to include virtually all those substances that are generally considered 

polymers. These polymers include siloxanes and silicones, silsesquioxane, rubber, lignin, 

polysaccharides (such as starch and gums), proteins (such as gelatin and hemoglobin), and 

enzymes. However, substances that result from hydrolysis, depolymerization, or chemical 

modification of polymers, regardless of the extent of these processes, so that the final products 

are no longer polymeric (e.g., a mixture of amino acids that is the result of hydrolysis of a 

polypeptide) are not considered to be polymers and must be reported if not otherwise excluded 
Chapter 2.0 Reporting Requirements 

2-5

(40 CFR 710.46(a)(1)). See 40 CFR 710.46(a)(1) for the definition of polymers for purposes of 

the IUR regulation. 

2.1.2.2 Microorganisms

 Microorganisms are exempt from IUR reporting. A microorganism is any combination 

of chemical substances that is a living organism and that meets the definition of 

“microorganism” at 40 CFR 725.3. Any chemical substance produced from a living 

microorganism is reportable unless otherwise excluded (40 CFR 710.46(a)(2)). 

2.1.2.3 Certain Forms of Natural Gas

 Table 2-1 identifies certain forms of natural gas that are exempt from IUR reporting (see 

40 CFR 710.46(a)(4)); this exemption is new as of the 2006 reporting cycle. 

Table 2-1. Chemical Substances Covered by the Exemption for Certain Forms of Natural 

Gas 

Form of Natural Gas CAS Number 

Natural gas (petroleum), raw liquid mix 64741-48-6 

Natural gas condensates 68919-39-1 

Gasoline natural 8006-61-9 

Gasoline (natural gas), natural 68425-31-0 

Natural gas 8006-14-2 

Natural gas, dried 68410-63-9 

2.1.2.4 Naturally Occurring Substances

 Chemical substances that are described in 40 CFR 710.4(b) of the TSCA Inventory 

regulations are considered “naturally occurring” and are automatically included in the TSCA 

Inventory but are not reportable under IUR if the substance is produced by means described in 

the rule. Examples of substances that are typically naturally occurring materials are raw 

agricultural commodities, water, air, crude oil, rocks, ores, and minerals. However, because the 

section 710.4(b) exemption is process-specific rather than chemical-specific, if you manufacture 

any substance in a manner other than as described in section 710.4(b), you are required to report 

it unless it is otherwise exempted (40 CFR 710.46(a)(3)). For this reason, minerals and certain 

agricultural products are sometimes considered not to be naturally occurring because of the 

means by which they are produced. 

 Further, section 710.46(a)(3) exempts from IUR reporting any chemical substance that is 

isolated/removed from nature for a commercial purpose by the means specified in section 

710.4(b). It also exempts any other chemical substance derived or separated from the substance 

originally removed from nature, provided such derivation involved only the means specified in 

that section (e.g., manual, mechanical, or gravitational separation, by dissolution in water, by 

flotation, or by heating solely to remove water). Whether a substance is considered “naturally 

occurring” depends on the manner in which it is produced and isolated. Table 2-2 presents some 

examples of evaluating the naturally occurring substance exemption. 
Chapter 2.0 Reporting Requirements 

2-6

Table 2-2. Examples of Evaluating Substances for the Naturally Occurring Exemption 

(40 CFR 710.46(a)(3)) 

y Calcined clays formed by heating naturally occurring clay typically must be reported because such heating is 

generally not done solely to remove water; a chemical change is primarily intended. 

y Substances that are removed/isolated from nature by physical or natural means are typically considered to be 

“naturally occurring.” Using water to extract a chemical substance from a naturally occurring substance is 

considered a natural means of removal. However, using any other solvent is not considered a natural means of 

removal. 

y In an electrostatic separation, small particles are removed from a liquid or gas stream. The process is 

essentially analogous to filtration or gravitational separation. Substances that are processed by this means are 

considered to be “naturally occurring.” 

y Mined coal is typically included in the naturally occurring substances category. 

y Ammonia and nitric acid are generally produced by chemical synthesis and are, therefore, generally not 

considered to be “naturally occurring.” 

2.1.3 Must Your Chemical, which is Generally Exempt, nevertheless be Reported? 

 With the exception of naturally occurring substances, a chemical substance that falls into 

any of the groups of chemicals generally exempted from reporting must still be reported if it is 

the subject of any of the following: a rule proposed or promulgated under sections 4, 5(a)(2), 

5(b)(4), or 6 of TSCA; an order issued under TSCA sections 5(e) or 5(f); or relief that has been 

granted under a civil action under TSCA sections 5 or 7 (40 CFR 710.46). Appendix C provides 

assistance in determining which chemical substances are included in these groups. However, if 

you are unable to determine whether the specific chemical substance you manufacture or import 

is listed in Appendix C, you can contact EPA to see if the specific substance is reportable (see 

Chapter 8 for contact information). 

2.2 Step II: Are You a Manufacturer Who Is Required to Report? 

 If you manufacture or import (including companies that manufacture or import solely for 

export) a chemical substance that is generally reportable under the IUR, you may nevertheless be 

exempt from the reporting requirements for that substance. The following questions may help 

you determine whether you must report: 

y Did you manufacture or import 25,000 pounds or more of the reportable 

substance at any single site during the reporting year (i.e., during 2005)? 

y Do you qualify as a small manufacturer with respect to the chemical substance? 

y Do you qualify for any other reporting exemptions? 

Figure 2-3 presents a decision logic diagram to assist you in answering these questions. The 

following subsections explain each question in greater detail. 
Chapter 2.0 Reporting Requirements 

2-7

YOU DO 

NOT 

NEED TO 

REPORT.

Do you 

qualify as a small 

manufacturer? 

(710.49) 

Did the site 

manufacture 25,000 

pounds or more of 

the substance? 

(710.48)

YOU MUST REPORT. 

Evaluate STEP III to determine what parts of 

Form U you must complete. 

Yes

Yes 

No 

No

STEP II: 

Are you a manufacturer who is required to 

report? 

Is your substance 

subject to any of 

certain actions 

under TSCA?

(710.49)

Yes

No 

Do you qualify 

for any other 

reporting 

exemptions? (see 

Section 2.2.3)

Yes 

No

Figure 2-3. Decision Logic Diagram for Evaluating Step II 

2.2.1 Did You Manufacture the Reportable Substance in Quantities of 25,000 Pounds or 

More? 

 If you manufactured (including imported) 25,000 pounds or more of a reportable 

chemical substance at any single site you owned or controlled during the calendar year 

immediately preceding the submission period (i.e. calendar year 2005 which proceeds the 2006 

submission period), you are subject to reporting (40 CFR 710.48(a)). 

 “Manufacture” means to import, produce, or manufacture with the purpose of obtaining 

an immediate or eventual commercial advantage. This includes, for example, manufacturing or 

importing any amount of a chemical substance for commercial distribution (including test 
Chapter 2.0 Reporting Requirements 

2-8

marketing), manufacturing solely for export, or manufacturing for use by the manufacturer, 

including use for product research and development or as an intermediate (40 CFR 710.3)). 

2.2.1.1 Meeting the 25,000-Pound Annual Production Volume Threshold

 You must submit an IUR report for a chemical substance only if you manufactured 

(including imported) 25,000 pounds or more of the substance at any single site you owned or 

controlled during 2005. Moreover, if during calendar year 2005 you manufactured 25,000 

pounds or more of the substance at some sites and less than 25,000 pounds at other sites, you 

will need to submit IUR reports for the substance only for those sites at which you manufactured 

(including imported) 25,000 pounds or more in 2005 (40 CFR 710.48). Some companies may 

both manufacture and import the same substance. These companies should add together the 

manufactured and imported volumes at each site to determine whether the amount of the 

chemical substance meets or exceeds the 25,000-pound threshold. For importers, the site at 

which a chemical is imported is described in 710.48(b) and section 2.2.1.2 of this document. 

 Table 2-3 provides examples of how the annual production volume reporting requirement 

applies. 

Table 2-3. Annual Production Volume Threshold Examples 

Description 2006 Reporting Requirement 

Company A, which has only one manufacturing site, 

manufactured 26,000 pounds of Chemical X, which is not 

exempt from reporting, at its site in 2005. 

Company A must report for Chemical X because it 

manufactured 25,000 pounds or more of Chemical 

X in 2005. 

Company B, which has only one manufacturing site, 

manufactured 26,000 pounds of Chemical X at its site in 

2004 and 20,000 pounds of Chemical X in 2005. 

Company B is not required to report for Chemical 

X because it manufactured less than 25,000 pounds 

of Chemical X in 2005. 

Company C has two manufacturing sites for Chemical X. In 

2005, Site 1 manufactured 13,000 pounds of Chemical X 

and Site 2 manufactured 15,000 pounds of Chemical X. 

Company C is not required to report for Chemical 

X at either site because 2005 production was less 

than 25,000 pounds at each site. 

Company D has two manufacturing sites for Chemical X. In 

2005, Site 1 manufactured 10,000 pounds of Chemical X 

and Site 2 manufactured 150,000 pounds of Chemical X. 

Company D is not required to report for Chemical 

X for Site 1 because 2005 production was less than 

25,000 pounds, but must report for Chemical X at 

Site 2 because at this location production was 

25,000 pounds or more in 2005. 

Company E has one site where it imports and manufactures 

Chemical X. Company E manufactured 21,000 pounds of 

Chemical X and imported 5,000 pounds of Chemical X in 

2005. 

Company E must report for Chemical X because 

the total produced at and imported by its site in 

2005 was 25,000 pounds or more. 

 In many cases, reportable substances are components of a mixture. Although mixtures 

are not reportable, the chemical substances making up a mixture may be reportable. If you 

manufacture or import chemical substances as part of a mixture, you would determine your IUR 

reporting requirements with respect to each substance in the mixture. 

 Importers (See 40 CFR 710.3(d)) must identify each substance in mixtures that are 

imported to determine whether those substances are reportable under IUR. For those substances 

that are reportable, the importer must determine the amount of the substance in the mixture 
Chapter 2.0 Reporting Requirements 

2-9

(40 CFR 710.4). One method by which this determination can be made is to use the weight and 

composition of the imported mixture to calculate the imported amount of each substance in the 

mixture. For each imported chemical substance, the importer could aggregate the amounts of the 

chemical substance in all imports received at the reporting site as defined in section 710.48(b) 

and add the amount of the chemical produced at the same site in the United States, if any, to 

determine if the amount of the chemical produced and imported meets the 25,000 pounds or 

more threshold. Note, however, that a chemical substance that is imported solely in small 

quantities for research and development, as an impurity, as part of an article, or in certain other 

forms (see 40 CFR 720.30(g) and (h)) is not subject to the IUR reporting requirements (40 CFR 

710.50(b)). 

2.2.1.2 Special Provisions for Importers

 The site where you import a chemical substance is considered the site of the operating 

unit within your organization that is directly responsible for importing the substance and controls 

the import transaction. In some cases, the import site may be the organization’s headquarters in 

the United States (40 CFR 710.48(b)). Although for a given substance that your company 

imports at a given site more than one person may meet the definition of “importer” (40 CFR 

710.3(d)), only one person should report. See 40 CFR 710.55(b). 

2.2.2 Are You a Small Manufacturer? 

 Small manufacturers are exempt from IUR requirements unless they manufacture or 

import 25,000 lbs. or more of a chemical substance that is the subject of a rule proposed or 

promulgated under section 4, 5(b)(4), or 6 of TSCA, or is the subject of an order in effect under 

section 5(e) of TSCA, or is the subject of relief that has been granted under a civil action under 

section 5 or 7 of TSCA (40 CFR 710.49). Appendix C provides assistance with determining 

which substances fall into these groups. 

Example 2-1. The headquarters of your company is located in New Town. The company 

owns a plant site located in Old Town, which is in a different state. A headquarters employee 

purchases and arranges to have 500,000 pounds of Chemical X imported from Japan to the 

Old Town plant site. The headquarters site controls the import transaction and is the site 

reported on Form U. 

Example 2-2. The headquarters of your company is located in New Town. The company 

owns three manufacturing sites, Sites 1, 2, and 3, all located in different states. An employee 

based at headquarters purchases and arranges to have 500,000 pounds of Chemical X 

imported from Japan. 20,000 pounds is delivered to Site 1; 180,000 pounds is delivered to 

Site 2; and 300,000 pounds is delivered to Site 3. The headquarters in New Town is the site 

responsible for all 500,000 pounds imported. 

 
Chapter 2.0 Reporting Requirements 

2-10

 You qualify as a small manufacturer if you meet either of the following criteria (40 CFR 

704.3): 

y Your total annual sales, combined with those of your parent company, domestic 

or foreign (if any), are less than $4 million regardless of annual production 

volume. 

y Your total annual sales, combined with those of your parent company, domestic 

or foreign (if any), are less than $40 million and your annual production volume 

of that substance does not exceed 100,000 pounds at any individual plant site. If 

the annual production volume of the substance at any of your sites is over 100,000 

pounds, you are required to report only for those sites. Note that under this 

criterion, it is possible to qualify as a small manufacturer with respect to some 

substances and not others or with respect to some plant sites and not others. 

 For purposes of the definition of a small manufacturer, total annual sales include all sales 

of the company, not just the total sales of a given chemical. Table 2-4 provides examples of how 

the small manufacturing exemption applies. 

Table 2-4. Small Manufacturer Exemption Examples (40 CFR 710.48) 

Description 2006 Reporting Requirement 

Site 1, which is one of several sites owned by Company A, 

had a production volume of 120,000 pounds of Chemical X 

in 2005. The total annual sales of Company A (all sites 

combined) were $1,250,000 in 2005. 

Site 1 is not required to report for Chemical X 

because combined sales in 2005 did not exceed $4 

million. 

Site 2, which is one of several sites owned by Company B, 

had a production volume of 90,000 pounds of Chemical X in 

2005. The total annual sales of Company B (all sites 

combined) were $20,000,000 in 2005. None of the other 

sites produce Chemical X. 

Site 2 is not required to report for Chemical X 

because annual production volume of that chemical 

did not exceed 100,000 pounds at any of Company 

B’s sites, and Company B had total annual sales of 

less than $40 million. 

Site 3, which is one of several sites owned by Company C, 

had a production volume of 200,000 pounds of Chemical X 

in 2005. Site 4, another site owned by Company C, had a 

production volume of 75,000 pounds of Chemical X in 

2005. The total annual sales of Company C (all sites 

combined) were $30,000,000 in 2005. 

Company C must report for Chemical X at Site 3 

because annual production volume at Site 3 

exceeded 100,000 pounds. Company C is not 

required to report for Chemical X at Site 4 because 

annual production volume at site 4 did not exceed 

100,000 pounds and total annual sales were less 

than $40 million. 

Site 5, which is one of several sites owned by Company D, 

had a production volume of 50,000 pounds of Chemical X in 

2005. The total annual sales of Company D (all sites 

combined) were $100,000,000 in 2005. 

Company D must report for Chemical X at Site 5 

because total annual sales in 2005 exceeded $40 

million. 

Site 6, which is one of several sites owned by Company E, 

had a production volume of 120,000 pounds of Chemical X 

in 2005. The total annual sales of Company E (all sites 

combined) were $1,250,000 in 2005. Chemical X is subject 

to a test rule. 

Site 6 is required to report for Chemical X. Even 

though combined sales are less than $4 million, this 

chemical is subject to a test rule and therefore must 

be reported. 
Chapter 2.0 Reporting Requirements 

2-11

2.2.3 Do You Qualify for Any Other Reporting Exemptions? 

 If you manufacture or import reportable substances solely under the following 

circumstances, you are not required to report for those substances under the IUR: 

y The chemical substance is imported as an article or part of an article. An article

is defined in 40 CFR 710.3(d) as “a manufactured item (1) which is formed to a 

specific shape or design during manufacture, (2) which has end-use function(s) 

dependent in whole or in part upon its shape or design during end use, and (3) 

which has either no change of chemical composition during its end use or only 

those changes resulting in compositions which have no commercial purpose 

separate from that of the article and that may occur as described in section 

710.4(d)(5); except that fluids and particles are not considered articles regardless 

of shape or design.” EPA considers imported items articles if they are 

manufactured in a specific shape or design for a particular end-use application 

and this design is maintained as an essential feature in the finished product. Thus, 

EPA views materials such as metal or plastic sheets, wire, coated fabric, rolled 

carpet, sheets of plywood, and other similar materials as articles, even if, for 

example, subsequent to import they are rolled or drawn thinner, cut, printed, 

laminated, or thermoformed, so long as they meet the above definition. 

Substances that are part of such articles are not subject to reporting under the 

IUR. If an item is manufactured in a particular shape for the purpose of shipping 

convenience and the shape has no function in the end use, it would not be 

considered an article. Thus, chemical substances that are part of items such as 

metal ingots, billets, and blooms are subject to reporting under the IUR. 

y The chemical substance is manufactured or imported solely in small quantities for 

research and development (40 CFR 710.50(a)). 

y The chemical substance is manufactured as an impurity, a non-isolated 

intermediate, or in any of the other forms identified in 40 CFR 720.30(g) and (h) 

(See 40 CFR 710.50(c)). 

y If between August 25, 2005, and August 24, 2006, you submitted all of the 

information required by the IUR in response to another rule promulgated under 

section 8(a) of TSCA (such as the Preliminary Assessment Information Reporting 

(PAIR) rule at 40 CFR part 717, subpart B), you are not required to report the 

same information under IUR for the same substance during 2006 (40 CFR 

710.55(a)). 

Table 2-5 presents examples of these circumstances. 
Chapter 2.0 Reporting Requirements 

2-12

Table 2-5. Examples of Manufacturing/Importing Activities Under Circumstances 

Which Do/Do Not Require Reporting 

Description 2006 Reporting Requirement 

Company A manufactures 400,000 pounds of a chemical 

intermediate called Chemical X during the production of a 

polymer. Chemical X is manufactured in Reactor 1 and is 

subsequently entirely consumed when reacted with other 

chemicals. Chemical X never leaves Reactor 1, except for 

sampling purposes. 

Company A does not need to report a Form U for 

Chemical X because it is considered to be a nonisolated intermediate and is therefore fully exempt. 

Company B manufactures 400,000 pounds of a chemical 

intermediate called Chemical Y during the production of a 

polymer. Chemical Y is manufactured in Reactor 1 and 

transferred to a storage tank until needed. Chemical Y is 

then transferred to Reactor 2 where it is mixed with other 

reactants to form the desired polymer, at which point 

Chemical Y is destroyed. Chemical Y never leaves this 

production site. 

Company B is required to report Chemical Y. 

When Chemical Y was transferred to the storage 

tank, it was isolated, and thus, does not meet the 

definition for “non-isolated intermediate.” 

Company C imports 10,000,000 pounds of Chemical Z in 

the form of thin sheets. Company C cuts these sheets into 

the desired size and shape, which are sold to consumers. 

Company C is not required to report Chemical Z 

because it is considered to be an article and 

therefore exempt from reporting. 

Company D imports 10,000,000 pounds of Chemical W in 

the form of pellets. Company D subsequently melts and 

molds Chemical W into the desired shape, which is sold 

directly to consumers. 

Company D is required to report Chemical W 

because they imported pellets whose shape or 

design when imported was not related to their end 

use. 

Company D manufactures 10,000,000 pounds of Chemical 

W in the U.S. Company D subsequently sells Chemical W 

to Company E located in the U.S. in the form of pellets. 

Company E melts and molds the pellets. 

Company D is required to report. Company E is 

not required to report because they are neither 

manufacturing nor importing Chemical W. 

2.3 Step III: What Information Must You Report? 

 Once you have determined that you need to file a Form U for a chemical substance, you 

would then determine what information must be reported. All persons required to report under 

IUR must report the information described in 40 CFR 710.52(c)(1), (c)(2), and (c)(3) (See Parts I 

an II of IUR Form U, a copy of which can be found in Appendix A). Basic company and site 

identification information is required by 40 CFR 710.52(c)(1) and (c)(2) (See Part I of IUR 

Form U). Chemical identification and information pertaining to the manufacture (including 

import) of chemical substances is required by 40 CFR 710.52(c)(3) (See Part II of IUR Form U). 

 Submitters reporting information for more than one chemical should make the necessary number 

of photocopies of Part II and report information for a single chemical on each photocopy. 

 The following questions may assist you in determining whether you also need to report 

the information described in 40 CFR 710.52(c)(4) (See Part III of IUR Form U): 

y Did you manufacture (including import) 300,000 pounds or more of the 

reportable substance at any site during 2005? 

y Is your substance inorganic, listed as a petroleum process stream, or otherwise 

listed as a chemical substance partially exempt from reporting? 
Chapter 2.0 Reporting Requirements 

2-13

y Is your substance the subject of any of certain actions under TSCA (see 40 CFR 

710.46)? 

Figure 2-4 presents a decision logic diagram to assist you in answering these questions. The 

following subsections explain each question in greater detail 

Is your substance 

inorganic or listed 

as a petroleum 

process stream or 

otherwise partially 

exempt?

(710.46)

Did you 

manufacture 

300,000 pounds 

or more of the 

substance?

(710.52)

COMPLETE PARTS I, II, 

AND III OF FORM U.

Yes

No

No

STEP III:

What information do you need to report?

Yes

COMPLETE PARTS I 

AND II OF FORM U.

Is your substance 

the subject of any of 

certain actions 

under TSCA? 

(710.46)

Yes

No

Is your substance 

inorganic or listed 

as a petroleum 

process stream or 

otherwise partially 

exempt?

(710.46)

Did you 

manufacture 

300,000 pounds 

or more of the 

substance?

(710.52)

COMPLETE PARTS I, II, 

AND III OF FORM U.

Yes

No

No

STEP III:

What information do you need to report?

Yes

COMPLETE PARTS I 

AND II OF FORM U.

Is your substance 

the subject of any of 

certain actions 

under TSCA? 

(710.46)

Yes

No

Figure 2-4. Decision Logic Diagram for Evaluating Step III 

2.3.1 Do You Manufacture and/or Import the Reportable Substance in Quantities of 

300,000 Pounds or More? 

 If you produce and/or import 300,000 pounds or more of a reportable substance at a 

single site in calendar year 2005, you must also report the information described in 40 CFR 

710.52(c)(4) for that chemical. This information describes the industrial processing and use, and 

commercial and consumer uses of the chemical. Because an IUR report relates to a single 

chemical substance, submitters reporting information for more than one chemical at a single site 

should make the necessary number of photocopies of Part III of IUR Form U and report 

information for only one chemical on each photocopy. Table 2-6 provides some examples of 
Chapter 2.0 Reporting Requirements 

2-14

when industrial processing and use information and commercial and consumer use information 

must be reported. 

Table 2-6. Examples of Reporting Requirements for Information Described in 40 CFR 

710.52(c)(4) (See IUR Form U, Part III ) 

Description 2006 Reporting Requirement 

Company A, which has only one manufacturing site, 

manufactured 300,000 pounds of Chemical X, which 

is not exempt from reporting, at its site in 2005. 

Company A must complete Parts I, II, and III for 

Chemical X because it manufactured 300,000 pounds or 

more of Chemical X in 2005. 

Company B, which has only one manufacturing site, 

manufactured 300,000 pounds of Chemical X at its 

site in 2004 and 200,000 pounds of Chemical X in 

2005. 

Company B is not required to complete Part III for 

Chemical X because it manufactured less than 300,000 

pounds of Chemical X in 2005. Company B must 

complete Parts I and II for Chemical X. 

Company C has two manufacturing sites for 

Chemical X. In 2005, Site 1 manufactured 130,000 

pounds of Chemical X and Site 2 manufactured 

170,000 pounds of Chemical X. 

Company C is not required to complete Part III for 

Chemical X at either site because 2005 production was 

less than 300,000 pounds at each site. Company C should 

complete Parts I and II for Chemical X at each site. 

Company D has three manufacturing sites for 

Chemical X. In 2005, Site 1 manufactured 10,000 

pounds of Chemical X, Site 2 manufactured 30,000 

pounds of Chemical X, and Site 3 manufactured 

350,000 pounds of Chemical X. 

Company D is not required to report for Chemical X for 

Site 1 because 2005 production was less than 25,000 

pounds. Company D must complete Parts I and II for 

Chemical X at Site 2 because at this location production 

was 25,000 pounds or more in 2005. Company D must 

complete Parts I, II, and III for Chemical X at Site 3 

because 2005 production was 300,000 pounds or more at 

this location. 

Company E has one site where it imports and 

manufactures Chemical X. Company E manufactured 

210,000 pounds of Chemical X and imported 100,000 

pounds of Chemical X in 2005. 

Company E must complete Parts I, II, and III for 

Chemical X because the combined amount manufactured 

and imported in 2005 was 300,000 pounds or more. 

In 2005, Company F manufactured 700,000 pounds 

of a liquid that contains Chemical X at 50% by 

weight. Company F manufactured Chemical X via a 

chemical reaction; it did not combine existing 

chemicals to form a mixture. 

Company F must complete Parts I, II, and III for Chemical 

X, because it manufactured 300,000 or more pounds (i.e. 

350,000 lbs) of Chemical X in 2005. 

2.3.2 Does Your Reportable Substance Qualify for a Partial Exemption? 

 Three groups of substances are generally exempt from the reporting requirements 

prescribed in 40 CFR 710.52(c)(4) for chemical substances manufactured in amounts of 300,000 

lbs. or more. For these substances, the industrial processing and use information and the 

commercial and consumer use information generally reported on Part III of IUR Form U need 

not be reported. First, manufacturers and importers of certain petroleum process streams, 

regardless of the production volume do not need to complete Part III of Form U for these 

substances. Second, EPA created a partial exemption for specific chemical substances where 

EPA has identified a low current interest in processing and use information related to the 

chemical. Third, for the 2006 submission period only, inorganic substances are also partially 

exempt. These three groups are described in more detail below. Manufacturers (including 

importers) of these substances are generally exempt from reporting the information requested on 
Chapter 2.0 Reporting Requirements 

2-15

Part III of Form U but are otherwise potentially required to report the information requested on 

Parts I and II of Form U (40 CFR 710.46(b)). 

2.3.2.1 Partial Exemption for Listed Chemicals that are termed Petroleum Process 

Streams for Purposes of IUR

 The chemical substances termed “petroleum process streams” for purposes of IUR that 

are partially exempt from IUR requirements are the listed by CAS Registry Number at 40 CFR 

710.46(b)(1). This list is reproduced in Appendix D. 

2.3.2.2 Partial Exemption for Listed Chemical Substances

 The specific chemical substances listed at 40 CFR 710.46(b)(2)(iv) are partially exempt 

from IUR requirements based on EPA’s determination that there is a low current interest in 

processing and use information related to these chemicals. This list is reproduced in 

Appendix D. 

2.3.2.3 Partial Exemption for Inorganic Substances in 2006

 For the 2006 reporting cycle, manufacturers (including importers) of inorganic 

substances will be reporting information in accordance with the IUR regulation for the first time. 

 As stated in 40 CFR 710.46(b)(3), these manufacturers are partially exempt from reporting 

under the IUR in 2006. This partial exemption will no longer apply after the 2006 reporting 

cycle (40 CFR 710.46(b)(3)). 

2.3.3 Chemical Substances Which Are Not Given a Partial Exemption 

 Certain chemical substances are not given a partial exemption from IUR requirements 

even if they are petroleum process streams listed in 40 CFR 710.46(b)(1), specific exempted 

chemical substances listed in 40 CFR 710.46(b)(2)(iv), or inorganic chemical substances as 

described in 40 CFR 710.46(b)(3). A substance in any of these three groups that is the subject of 

a rule proposed or promulgated under sections 4, 5(a)(2), 5(b)(4), or 6 of TSCA, or is the subject 

of an order issued under section 5(e) or 5(f) of TSCA or is the subject of relief that has been 

granted under a civil action under sections 5 or 7 of TSCA is not afforded a partial exemption, 

and therefore, manufacturers and importers of such a substance must report processing and use 

information if the amount of the substance manufactured (including imported) at a site is 

300,000 lbs. or more. See Appendix C for additional information about these chemical 

substances. 
Chapter 3.0 When You Must Report 

3-1

3.0 When You Must Report 

 For the 2006 reporting cycle, as in previous reporting cycles, you are required to report 

information pertaining to calendar year 2005 during the submission period, which is between 

August 25 and December 23, 2006 (40 CFR 710.53). The subsequent submission periods will 

occur from June 1 through September 30 at 5-year intervals after the first submission period 

(2011, 2016, 2021, etc.) (40 CFR 710.53). 

 Your submissions for the 2005 reporting year must be postmarked no later than 

December 23, 2006. If you are required to report, failure to file your report during this period is 

a violation of TSCA sections 8(a) and 15 and may subject you to penalties (40 CFR 710.1(c)). 
Chapter 4.0 Completing Form U 

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4.0 Reporting the IUR Information 

 This chapter provides assistance with reporting the information required by the IUR 

regulation. Section 4.1 describes how to complete the certification statement. Section 4.2 

discusses the reporting standards to be used when reporting in accordance with the IUR 

regulation. Sections 4.3 through 4.8 provide guidance as to how to complete each block on the 

IUR reporting form, Form U. 

4.1 Certification 

 The following subsections describe the certification block at the top of Form U. 

4.1.1 Signature 

 The certification statement must be signed by an authorized official of your company 

(40 CFR 710.52(c)(1)). This statement certifies that the information reported on this form has 

been completed in compliance with the requirements of the rule and that the confidentiality 

claims made on the form are true and correct. Note that knowingly providing false or misleading 

information or concealing required information may be punishable by fine or imprisonment or 

both under TSCA section 15. Signatures should be made in black ink to ensure that the form 

bears a legible signature that can be microfiched or otherwise archived. 

4.1.2 Date Signed 

 Report the month, day, and year on which the certification statement was signed. 

4.1.3 Name and Official Title 

 Report the name and title of the person who signed the certification. 

4.2 Reporting Standards 

 The IUR requires submitters to exercise certain levels of due diligence in gathering the 

information required to be submitted in Form U, depending on the type of information being 

reported. (40 CFR 710.52) Information identifying the site where a chemical is manufactured or 

imported and information pertaining to manufacture and/or importation of a chemical substance 

(40 CFR 710.52(c)(1)-(c)(3); Parts I and II of Form U) must be reported to the extent that the 

information is known to or reasonably ascertainable by the submitter. Information on 

industrial processing and use and consumer and commercial use of a chemical substance (40 

CFR 710.52(c)(4); Part III of Form U) must be reported to the extent that the information is 

readily obtainable. These terms are defined in 40 CFR 710.43 and discussed more fully below. 

Known to or reasonably ascertainable by means all information in a person’s 

possession or control, plus all information that a reasonable person similarly situated might be 

expected to possess, control, or know. 

 Under TSCA section 8(a), the Agency may collect information associated with chemical 

substances to the extent that it is known to or reasonably ascertainable by the submitter. This is 
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4-2

 

information possessed by employees or other agents of the company reporting under the IUR 

regulation including persons involved in the research, development, manufacturing, or marketing 

of a chemical substance. This information includes knowledge gained through discussions, 

symposia, and technical publications. For purposes of IUR reporting, the known to or 

reasonably ascertainable by standard applies to the information listed in 710.52(c)(2) and 

710.52(c)(3) which correspond to Parts I and II of Form U. 

 Examples of types of information that are considered to be in a person’s possession or 

control, or that a reasonable person similarly situated might be expected to possess, control, or 

know are: 

y Files maintained by the submitter or employees in the submitter’s company; 

y Information contained in standard references, such as MSDSs, that contain use 

information or concentrations of chemicals in mixtures; and 

y Information from Chemical Abstracts Service (CAS), Dun and Bradstreet, and 

NAICS. 

Readily obtainable information is information known by management and supervisory 

employees of the submitter company who are responsible for manufacturing, importing, 

processing, technical services, and marketing of the reportable chemical substance. EPA 

interprets the term “readily obtainable information” to include use of the best professional 

judgment of the management and supervisory employees based on past experiences for similar 

chemical substances in the same or similar markets and/or any reasonably likely processing and 

use scenarios for the chemical substance, which might include the use of relevant information 

that is readily obtainable at the corporate level. If information necessary to complete any portion 

of Part III is not readily obtainable, the submitter is not required to respond to that portion of Part 

III. 

 The readily obtainable standard applies to processing and use information reported in 

Part III of Form U and described in sections 4.8 of this document. The readily obtainable 

standard for processing and use information requires less effort on the part of the submitter than 

the “known to or reasonably ascertainable by” standard that applies to all other IUR reporting. 

The readily obtainable standard limits the burden associated with processing and use reporting 

by making extensive file searches and customer surveys unnecessary. The readily obtainable 

standard is identical to the standard currently in effect under EPA's TSCA section 8(a) 

Preliminary Assessment Information Reporting (PAIR) regulation (See 40 CFR 712.7). 

4.3 Part I - Section A Company Information1

 The following subsections describe the reporting blocks in Part I of Form U. 

1

See Sec 4.7.1 for information concerning CBI claims for Company and Technical Contact Information. 
Chapter 4.0 Completing Form U 

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4.3.1 Company Name (Block 1.A.1) 

 Enter the full name of the company. You should include any additional identifying terms 

such as Inc., Ltd., L.L.C., etc. 

4.3.2 Company Dun & Bradstreet Number (Block 1.A.2) 

 Dun & Bradstreet assigns separate numbers to subsidiaries and parent companies; make 

sure that the number you provide EPA in Block 1.A.2 belongs to the company for which you are 

reporting. If the company does not have a Dun & Bradstreet number, you can request one from 

your local office of Dun & Bradstreet. There is no charge for this service and you are not 

required to disclose sensitive financial information to get a number. For more information on 

obtaining a Dun & Bradstreet number, see www.dnb.com/us. If you are already listed with Dun 

& Bradstreet, but do not know your number, you can call 1-888-814-1435 for assistance. 

4.4 Part I - Section B Site Information1

 EPA requires the following information to be reported for each plant site at which a 

reportable chemical substance is manufactured (including imported) in amounts of 25,000 lbs. or 

more: the site name, site Dun & Bradstreet number, street address, city, county (or parish), state, 

and zip code. The site for an importer of a chemical substance is the site of the operating unit 

within the importer’s organization that is directly responsible for importing the substance and 

that controls the import transaction; in some cases, it may be the organization’s headquarters in 

the United States. EPA will assign a Facility Identification Number. There is no need to fill in 

the Facility Identification Number block. 

4.4.1 Site Name (Block 1.B.1) 

 Enter the full name of the site. You should include any additional identifying terms such 

as Inc., Ltd., L.L.C., etc. In some cases, this information may be the same as that reported in 

Block 1.A.1. 

4.4.2 Site Dun & Bradstreet Number (Block 1.B.2) 

 Dun & Bradstreet assigns separate numbers to subsidiaries and parent companies; make 

sure that the number you provide EPA in block 1.B.2 belongs to the individual site for which 

you are reporting. If the site does not have a Dun & Bradstreet number, you can request one 

from your local office of Dun & Bradstreet. There is no charge for this service and you are not 

required to disclose sensitive financial information to get a number. For more information on 

obtaining a Dun & Bradstreet number, see www.dnb.com/us. If you are already listed with Dun 

& Bradstreet, but do not know your number, you can call 1-888-814-1435 for assistance. 

4.4.3 Site Street Address (Blocks 1.B.3 through 1.B.8) 

 Enter your site mailing address, including the appropriate county or parish, using 

standard addressing techniques as established by the U.S. Postal Service. Post office box 

numbers should be accompanied by a street address. If a post office box is listed, it should be 

listed after the street address in Block 1.B.4 (Address Line 2). 
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4.5 Part I - Section C Technical Contact Information2

 This section requests information about the technical contact who EPA may contact for 

clarification on the responses. The technical contact need not be located at the site for which 

information is reported, but should be located in the United States. Also, the technical contact 

need not be the person who signed the certification statement. If you wish to identify more than 

one person as a technical contact, please include the extra name(s) in a separate cover letter 

along with title(s), telephone number(s), and e-mail address(es). 

4.5.1 Technical Contact Name (Block 1.C.1) 

 Enter the name of the person whom EPA may contact for clarification of information 

submitted on Form U. 

4.5.2 Technical Contact Telephone Number and Email Address (Blocks 1.C.2 and 1.C.3) 

 Enter the technical contact’s telephone number, including the area code, and their email 

address (if one is available). 

4.5.3 Technical Contact Mailing Address (Blocks 1.C.4 through 1.C.8) 

 Enter the technical contact’s mailing address, using standard addressing techniques as 

established by the U.S. Postal Service. Post office box numbers should be accompanied by a 

street address. If a post office box is used as a mailing address, the street address should be 

given in Block 1.C.4 followed by the post office box number in Block 1.C.5 (Address Line 2). 

4.6 Part II - Section A Chemical Identification 

A separate copy of Parts II and III of IUR Form U must be submitted for each chemical 

substance at each site for which reporting is required. If you are reporting information for more 

than one chemical, you should make the necessary number of photocopies of Parts II and III of 

IUR Form U and report information for one chemical on each photocopy. 

4.6.1 Chemical Identifying Number (Block 2.A.1) 

 Persons submitting information in accordance with the IUR regulation must report both 

the specific chemical substance name and the CAS Registry Number (or other identifying 

number) of each reportable chemical substance manufactured (including imported) at each site in 

amounts of 25,000 pounds or more per year (40 CFR 710.52(c)(3)(i)). 

 You may claim as confidential the identity of a substance that is already listed as 

confidential on the TSCA Inventory by checking the CBI box in Part II Section A of IUR 

Form U. EPA will not honor a chemical identity CBI claim for a substance that is listed on the 

Public Inventory. CBI claims for chemical identity will not be accepted unless accompanied by 

a separate written substantiation for the substances claimed as CBI; see Section 5.1 for more 

details about substantiating CBI claims for the identity of a chemical substance. If you fail to 

substantiate the claim for confidentiality of the chemical identity in accordance with applicable 

2

See Sec 4.7.2 for information concerning CBI claims for Plant Site Information. 
Chapter 4.0 Completing Form U 

4-5

regulations, EPA may make the information available to the public without further notice to you. 

 Checking this box does not protect the link between your company and the substance; it only 

asserts a CBI claim for the specific identity of the substance. To claim company and/or plant site 

identities as CBI, check the CBI box(es) in Part II, Section B, Blocks 2.B.1 and 2.B.2 of IUR 

Form U (see Sections 4.7.1 and 4.7.2 below). 

CAS Registry Number. Every chemical substance reported in accordance with the IUR 

regulation must be accompanied by its CAS Registry Number (entered into Block 2.A.1 of Part 

II) or other identifying number (40 CFR 710.52(c)(3)(i)). When you report a CAS Registry 

Number, please verify that the number you are reporting is the correct number for your 

substance. 

 The CAS Registry Number is the 

preferred identifier for chemical substances 

reported under the IUR. If you are unable to 

find a CAS Registry Number in the public 

portion of the Inventory, then the substance was 

not in the TSCA Inventory as of that date or the substance is listed as confidential. If the CAS 

Registry Number is not reasonably ascertainable, you would report either of the following 

identifying numbers (40 CFR 710.52(c)(3)(i)): 

If the CAS Registry Number is not 

reasonably ascertainable, you would report 

either the EPA Accession Number or PMN 

y EPA Accession Number; or 

y PMN Number. 

EPA Accession Number. If the identity of a chemical substance in the TSCA Inventory 

is confidential, the public portion of the Inventory lists an Accession Number for that substance 

and uses a generic name rather than a specific identity. You may be reporting for the wrong 

substance if you find a generic chemical identity in the public portion of the Inventory that you 

think belongs to your substance and report using the Accession Number for that substance. An 

Accession Number may be used when a CAS Number is not reasonably ascertainable. A typical 

Accession Number is a 5-digit number such as “29735.” 

PMN Number. If you filed a PMN for a substance that is now reportable under the IUR 

and that PMN was assigned a PMN number, you can use that as an identifying number, when 

necessary, regardless of whether the substance is confidential. A typical PMN number looks like 

this: “P-85-0243” or “P-83-0001A.” 

 Please be aware that a chemical substance that has a PMN number is not automatically 

reportable under the IUR. A PMN substance is reportable under the IUR only if it is included in 

the TSCA Inventory as a result of EPA’s receipt of a Notice of Commencement for the substance 

(40 CFR 720.102). 

4.6.2 ID Code (Block 2.A.2) 

 Enter the code for the type of identifying number you entered in Block 2.A.1, as shown in 

Table 4-1. 
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Table 4-1. ID Code for Chemical Identifying Numbers 

If the Number You are Reporting in 

Block 2.A.1 is a(n) Enter This Code in Block 2.A.2 

Accession Number A 

CAS Registry Number C 

PMN Number P 

4.6.3 Chemical Name (Block 2.A.3) 

 Enter the specific name of the chemical substance you are reporting in Block 2.A.3. 

Chemical Abstracts Index/Preferred names should be used if available. You can find names of 

nonconfidential substances in the public portion of the TSCA Inventory. If such names are not 

available, use nomenclature that completely and accurately describes the chemical substance. 

 Trade names should not be used except where a foreign supplier will not disclose to you 

the specific identity of the chemical substance. In that case, you should submit along with Form 

U a letter indicating that your supplier will not disclose the specific identity of the chemical 

substance and identifying the supplier of each trade name ingredient reported. 

 You may claim information in this letter as confidential by circling or bracketing the text 

to be protected and marking the page “CONFIDENTIAL.” Failure to so mark this information 

may result in EPA making the information available to the public without further notice to you. 

Confidential business information must not be submitted by email. 

 Section 6.5 explains how importers whose foreign suppliers will not reveal the identity of 

the substance the importers are reporting can comply with their reporting requirements. 

4.7 Part II - Section B Manufacturing Information 

 The following subsections describe the manufacturing information required to be 

reported for each chemical substance. 

4.7.1 Confidentiality of Company Information (Block 2.B.1) 

 Checking the CBI box in this block asserts a confidentiality claim for the link between 

the chemical substance and all of the information reported in Part I, Section A of Form U. 

Checking other CBI boxes on the form will not protect this link. You may claim this connection 

as confidential for some chemical substances for which you are reporting, while not making the 

claim for others (each chemical substance manufactured (including imported) at a site is reported 

on a separate copy of Parts II and III of the form). 

4.7.2 Confidentiality of Site Information (Block 2.B.2) 

 Check this CBI box to claim the link between the site of manufacture/import (reported in 

Part I, Section B) and the chemical identity as confidential. You may claim this connection as 

confidential for some chemical substances for which you are reporting, while not making the 

claim for others (each chemical substance is reported on a separate copy of Parts II and III of the 
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4-7

form). You are required to substantiate each claim for confidentiality of site information in 

writing (40 CFR 710.58(c)) (see Section 5.2). If you fail to substantiate the site CBI claim in 

accordance with the applicable regulations, EPA may make the information available to the 

public without further notice to you. Checking this CBI box and providing the substantiation 

information will assert a CBI claim over all of the information in Part I, Section B of Form U. 

4.7.3 Confidentiality of Technical Contact Information (Block 2.B.3) 

Checking the CBI box in this block asserts a confidentiality claim for the link between 

the chemical substance and the technical contact information reported in Part I, Section C of 

Form U. You may claim this connection as confidential for some chemical substances for which 

you are reporting, while not making the claim for others (each chemical substance is reported on 

a separate copy of Parts II and III of the form). 

4.7.4 Site Limited (Y/N) (Block 2.B.4) 

 If you manufacture the chemical substance at the site identified in Part I, Section B of 

Form U and do not distribute the chemical substance or any mixture or article containing that 

substance outside the plant site for commercial purposes, enter “Y” in the space next to the CBI 

box (40 CFR 710.52(c)(3)(iii)). Otherwise, enter “N.” Note: you cannot report an imported 

chemical substance as site-limited (40 CFR 710.43). To claim that the information reported in 

Block 2.B.4 is confidential, check the CBI box. 

4.7.5 Activity (Manufacture and/or Import) (Block 2.B.5) 

 Check the box(es) that describe the activities at your site. For purposes of this data 

element, manufacture means to domestically produce the chemical substance. If you both 

manufacture and import the same chemical substance, check both boxes. Check the CBI box to 

claim the nature of the activity (i.e., manufacture vs. importation) as confidential for the 

substance. Claiming an activity as CBI does not protect the link between your company and the 

substance; that link will not be protected unless you assert a confidentiality claim by checking 

the CBI box associated with the company name (see Section 4.7.1). 

4.7.6 Manufactured Production Volume (Block 2.B.6) 

 Report the volume of the chemical manufactured domestically at your site during 

calendar year 2005, in pounds. Report the quantity to at least two significant figures; it should 

be accurate to the extent known to or reasonably ascertainable by you. Production volumes 

should be reported in numeric format (i.e., 58,000 or 6,352,000) because the Agency’s 

automated equipment cannot read volumes other than those expressed in numeric format. For 

example, “2 million” or “2 E6" are not acceptable, nor are abbreviations such as M 

(12,000,000 = 12M) or K (50,000 = 50K). Check the CBI box to claim the manufactured 

production volume as confidential. 
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4.7.7 Imported Production Volume (Block 2.B.7) 

 Report the volume of chemical imported by your site in 2005, in pounds. Report the 

quantity to at least two significant figures; it should be accurate to the extent known to or 

reasonably ascertainable by you. You should use the same numeric format as described for 

Block 2.B.6, manufactured production volume. Check the CBI box to claim the imported 

production volume as confidential. Imported and manufactured production volumes are reported 

separately for each chemical at each site. 

4.7.8 Number of Workers (Block 2.B.8) 

 Report the total number of workers reasonably likely to be exposed to each reportable 

chemical substance at each site during the reporting year (i.e., during 2005) (40 CFR 

710.52(c)(3)(v)). For Block 2.B.8, report the code corresponding to the range from Table 4-2 for 

the number of workers reasonably likely to be exposed to a reportable chemical substance during 

manufacture. Check the CBI box to claim the number of workers reported as confidential. 

Table 4-2. Codes for Reporting Number of Workers Reasonably Likely to be Exposed 

Code Range of Workers Reasonably Likely to be Exposed 

W1 Fewer than 10 

W2 At least 10 but fewer than 25 

W3 At least 25 but fewer than 50 

W4 At least 50 but fewer than 100 

W5 At least 100 but fewer than 500 

W6 At least 500 but fewer than 1,000 

W7 At least 1,000 but fewer than 10,000 

W8 10,000 or more 

 “Reasonably likely to be exposed” means “an exposure to a chemical substance which, 

under foreseeable conditions of manufacture (including import), processing, distribution in 

commerce, or use of the chemical substance, is more likely to occur than not to occur. Such 

exposures would normally include, but would not be limited to, activities such as charging 

reactor vessels, drumming, bulk loading, cleaning equipment, maintenance operations, materials 

handling and transfers, and analytical operations. Covered exposures include exposures through 

any route of entry (inhalation, ingestion, skin contact, absorption, etc.), but excludes accidental 

or theoretical exposures” (40 CFR 710.43). 

 Persons reasonably likely to be exposed to a chemical substance include workers whose 

employment requires them to pass through areas where chemicals are manufactured, processed, 

or used (e.g., production workers and foremen, process engineers, and plant managers). Workers 

employed to drive vehicles which transport the chemical should be included in the number of 

workers reasonably likely to be exposed to the chemical substance if they come into contact with 

the chemical during loading or unloading. For example, workers engaged in the connection or 

disengagement of hoses used to load or unload the chemical should be included. However, 

workers involved solely with transporting chemicals in sealed (totally enclosed with no potential 

for exposure) containers should not be included. 
Chapter 4.0 Completing Form U 

4-9

 In addition, when a site employs temporary, seasonal, or contract workers in the 

manufacture of a reportable chemical substance, these workers should be included in the number 

of workers reasonably likely to be exposed to a chemical substance if they work in areas where 

the chemical is manufactured (including imported). The term does not include those employees 

whose jobs are unassociated with potential exposures to a substance or mixture (e.g., 

administrative staff who never enter areas where the chemical is manufactured) and who are 

unlikely to be exposed to a chemical substance for even a brief period of time. No allowance is 

made for personal protective equipment or for engineering controls that reduce but do not 

preclude exposure to a chemical substance; however, if contact between a worker and a chemical 

is highly improbable, the worker should not be included among those persons reasonably likely 

to be exposed to the chemical substance. 

 When there is no potential exposure to a chemical substance, the code W1 corresponding 

to fewer than 10 workers would be reported. This would be the case, for instance, when a 

chemical is imported in sealed containers and resold without repackaging or is shipped from a 

foreign source directly to a customer. 

4.7.9 Maximum Concentration (Block 2.B.9) 

 Report the maximum concentration, measured by weight, of your reportable chemical 

substance at the time it is reacted onsite to produce a different chemical substance or as it leaves 

the site (40 CFR 710.52(c)(3)(vi)). The concentration must be accurate to the extent that 

information is known to or reasonably ascertainable by you. In your determination of the 

maximum concentration, do not include product sent offsite for non-commercial purposes (40 

CFR 710.1(a)). 

 For each substance, select the maximum concentration of the substance from the ranges 

listed in Table 4-3. If the maximum concentration falls between two ranges, round your estimate 

to the nearest 1 percent using standard rounding procedures. Report the code that corresponds to 

the appropriate range. Report the maximum concentration regardless of the various physical 

forms in which the chemical may be sent offsite or reacted onsite to produce a different chemical 

substance. Check the CBI box to claim the maximum concentration as confidential. 

Table 4-3. Codes for Reporting Maximum Concentration 

Code Concentration Range (weight percent) 

M1 Less than 1% by weight 

M2 From 1% to 30% by weight 

M3 From 31% to 60% by weight 

M4 From 61% to 90% by weight 

M5 Greater than 90% by weight 
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4.7.10 Physical Form and Percentage of Production Volume (Blocks 2.B.10 through 

2.B.15) 

 Report all physical forms of the chemical substance at the time it is reacted or as it leaves 

your site and the percentage of production volume for each physical form (40 CFR 

710.52(c)(3)(viii)). The six types of physical forms are listed in the regulation and repeated in 

Example 4-1 and on Form U. Report the percentage of each physical form reacted onsite or sent 

offsite rounded off to the closest 10 percent (40 CFR 710.52 (c)(3)(ix)). If the substance is sent 

offsite in more than one physical form, report all the physical forms in which it is sent offsite. In 

column “a” of this section, check the box for each physical form that applies to the chemical 

substance. Check the CBI box(es) to claim the physical form(s) as confidential. In column “b” 

of this section, report the percentage of production volume for each physical form reported in 

section “a.” These percentages may total less or more than 100% due to rounding. Check the 

CBI box(es) to claim the percentage(s) of production volume as confidential. 

Information regarding processing or use 

activities must be reported only to the 

extent that it is readily obtainable (40 

CFR 710.52(c)(4)). 

Example 4-1. Determining Percentage of Production Volume

Company A manufactures 100,000 pounds of Chemical X. Forty-eight percent of the 

production volume is produced as dry powder, 24 percent is produced as a pellets, 24 percent as 

a liquid solution, and 4 percent as a water-wet solid. Company A would report the following: 

 Dry Powder 50% 

 Pellets or Large Crystals 20% 

 Water- or Solvent-Wet Solid 0% 

 Other Solid 0% 

 Gas or Vapor 0% 

 Liquid 20% 

4.8 Part III - Processing and Use Information 

 In addition to completing Parts I and II, you 

would complete Part III of Form U for reportable 

chemical substances manufactured (including 

imported) for commercial purposes in an amount of 

300,000 pounds or more at any one site during 

calendar year 2005 (40 CFR 710.52(c)(4)). If you manufacture the chemical substance in an 

amount less than 300,000 pounds at a site, you do not need to complete Part III for the 

chemical at that site; instead, check the N/A box. If you report information for more than one 

chemical, make the necessary number of photocopies of Part III and report information for only 

one chemical on each photocopy. Report industrial processing and use information for each 

reportable chemical substance at sites under your control, and at domestic sites that receive a 

reportable chemical substance from you directly or indirectly (including through a 

broker/distributor, from a customer of yours, etc.) (40 CFR 710.52(c)(4)). Note that you should 

only report domestic processing and use activities. Report information regarding processing or 

use activities occurring at sites not under your control only to the extent that it is readily 

obtainable (40 CFR 710.52). Section 4.2 contains additional information on the readily 

obtainable standard. You may check the CBI box next to each data element to claim the data 

confidential, as necessary. Additional guidance on reporting known end uses is available in the 

documents Questions and Answers for Reporting for the 2006 Partial Updating of the TSCA 
Chapter 4.0 Completing Form U 

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Chemical Inventory Database and Case Studies for Reporting for the 2006 Partial Updating of 

the TSCA Chemical Inventory Database. 

 Note that if a chemical substance is fully reacted (i.e., reporting ‘PC’ for the type of 

processing or use code), then the chemical substance is consumed and further processing and use 

information for that chemical will not exist. In such a situation, there is no downstream 

processing and use information to be reported under 40 CFR 710.52(c)(4). 

4.8.1 Part III - Section A: Industrial Processing and Use Data (Blocks 3.A.1 through 

3.A.10) 

 Report for the chemical substance up to ten unique combinations of the following data 

elements: process or use code (described in Section 4.8.1.1), five-digit NAICS code (described 

in Section 4.8.1.2), and industrial function category (IFC) code (described in Section 4.8.1.3) (40 

CFR 710.52(c)(4)(i)). A processing and use code, NAICS code, and IFC code combination 

defines a potential exposure scenario for risk-screening and priority-setting purposes. For each 

of these unique combinations, you are also required to report the percentage of production 

volume (described in Section 4.8.1.4), a number of sites code (described in Section 4.8.1.5), and 

a number of workers code (described in Section 4.8.1.6) (40 CFR 710.52(c)(4)(i)). If more than 

ten unique combinations apply to a chemical substance, you need only report the ten 

combinations for the chemical substance that cumulatively represent the largest percentage of 

production volume, measured by weight (40 CFR 710.52(c)(4)(i)(C)). If any information is not 

readily obtainable, enter ‘NRO’ for “not readily obtainable” in the box corresponding to that data 

element. 

4.8.1.1 Type of Process or Use Code

 To the extent that it is readily obtainable, report the process or use code, shown in 

Table 4-4, that corresponds to the appropriate processing or use operation for the particular 

combination of NAICS code and IFC code. Check the CBI box to claim the process or use code 

as confidential. Note that if a chemical substance is fully reacted (i.e., reporting “PC” for the 

processing code), then the chemical substance is consumed and further processing and use 

information for that chemical substance will not exist. A processing or use code may be reported 

more than once if more than one NAICS and/or IFC code applies to the same processing or use 

operation. 

Table 4-4. Codes Corresponding to Industrial Processing or Use Operations 

Code Operation 

PC Processing as a reactant 

PF Processing—incorporation into formulation, mixture, or reaction product 

PA Processing—incorporation into article 

PK Processing—repackaging 

U Use—non-incorporative activities 
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 Guidance is provided in Appendix E which may assist you in determining which code to 

report. To claim the code(s) you report as confidential business information, check the box(es) 

next to the information you report. 

4.8.1.2 Five-Digit NAICS Code

 The North American Industry Classification System (NAICS) codes published by the 

Office of Management and Budget (OMB) have superseded the 1987 Standard Industrial 

Classification (SIC) code system. Report the five-digit NAICS code that corresponds to the 

appropriate industrial setting for the particular combination of process/use and IFC codes. The 

NAICS code classification system is being used to describe the industrial setting in which 

chemical exposures may occur. You are required to report the five-digit NAICS code(s) for all 

sites that receive a reportable chemical substance from you either directly or indirectly 

(including through a broker/distributor, from a customer of yours, etc.) and that process and use 

the reportable chemical substance to the extent that this information is readily obtainable (40 

CFR 710.52(c)(4)(i)(B)). However, EPA does not intend for you to survey your customers or 

distributors to precisely identify the appropriate NAICS codes at your “downstream” sites. 

Because a NAICS code may apply to more than one processing and use scenario for a chemical 

substance, the same NAICS code may be reported with different IFC codes. Check the CBI box 

to claim the NAICS code as confidential. 

 For additional information on NAICS codes and tables cross-referencing the NAICS 

codes and SIC codes, refer to the following website: 

http://www.census.gov/epcd/www/naics.html. The NAICS codes can contain a maximum of 6 

digits, although you should only report to the first five digits for the IUR. 

4.8.1.3 Industrial Function Category (IFC) Code

 Report the IFC code, shown in Table 4-5, that corresponds to the appropriate function for 

the particular combination of process/use code and NAICS code reported (40 CFR 

710.52(c)(4)(i)(C)). Guidance on the scope of each category is provided in Appendix E. Check 

the CBI box(es) to claim the IFC code(s) as confidential. 

Table 4-5. Codes for Reporting Industrial Function Categories (IFCs) 

Codes Industrial Function Categories 

U01 Adsorbents and absorbents 

U02 Adhesives and binding agents 

U03 Aerosol propellants 

U04 Agricultural chemicals (non-pesticidal) 

U05 Anti-adhesive agents 

U06 Bleaching agents 

U07 Coloring agents, dyes 

U08 Coloring agents, pigments 

U09 Corrosion inhibitors and antiscaling agents 

U10 Fillers 
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Table 4-5. Codes for Reporting Industrial Function Categories (IFCs) 

Codes Industrial Function Categories 

U11 Fixing agents 

U12 Flame retardants 

U13 Flotation agents 

U14 Fuels 

U15 Functional fluids 

U16 Intermediates 

U17 Lubricants 

U18 Odor agents 

U19 Oxidizing agents 

U20 pH-regulating agents 

U21 Photosensitive chemicals 

U22 Plating agents and metal surface treating agents 

U23 Processing aid, not otherwise listed 

U24 Process regulators, used in vulcanization or polymerization processes 

U25 Process regulators, other than polymerization or vulcanization processes 

U26 Reducing agents 

U27 Solvents (for cleaning or degreasing) 

U28 Solvents (which become part of product formulation or mixture) 

U29 Solvents (for chemical manufacture and processing and are not part of product at greater 

than 1% by weight) 

U30 Stabilizers 

U31 Surface active agents 

U32 Viscosity adjustors 

U33 Other 

4.8.1.4 Percentage of Production Volume

 Estimate the percentage of production volume that is attributable to each unique 

combination of process/use code, NAICS code, and IFC code. The quantity should be accurate to 

the extent that it is readily obtainable by you. Round the estimates to the nearest 10 percent of 

production volume (40 CFR 710.52(c)(4)(i)(D)). You may not round a particular combination 

that accounts for 5 percent or less of the total production volume of a reportable chemical 

substance to 0 percent if the production volume attributable to that combination is greater than or 

equal to 300,000 pounds. In such cases, you must report the percentage of production volume 

attributable to that combination to the nearest 1 percent of production volume (40 CFR 

710.52(c)(4)(i)(D)). To claim this information as confidential, check the CBI box. 

 The total percentage of production volumes associated with the process/use code, NAICS 

code, and IFC code combinations may add up to more than 100 percent, given that you are 

reporting on distribution of a chemical to sites in your control as well as downstream sites, some 

of which are not immediate purchasers from your original manufacturing site. Additionally, the 

total percentage of production volume may add up to less than 100 percent if, for example, you 
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cannot readily obtain information about how all of your production volume is processed or used, 

there are more than ten combinations of codes applicable to your chemical, or you export a 

portion of the production volume. Table 4-6 provides examples of reporting industrial 

processing and use data. 

Table 4-6. Examples of Reporting Industrial Processing and Use Information 

Description 2006 Reporting Requirement 

Site 1 manufactures 500,000 pounds of Chemical X for 

processing for incorporation into a mixture. All of the 

production is for use under industrial NAICS code 32519 

(other basic organic chemical manufacturing). Of the 

production volume, 67% (335,000 pounds) is used as a dye 

and 33% (165,000 pounds) is used as a pigment. 

On line 3.A.1 of Form U, enter PF for type of 

process or use, 32519 for NAICS code, U07 for 

IFC, and 70% for production volume. On line 

3.A.2 of Form U, enter PF for type of process or 

use, 32519 for NAICS code, U08 for IFC, and 30% 

for production volume. 

Site 1 manufactures 500,000 pounds of Chemical X for 

processing for incorporation into a mixture. All of the 

production is for use under NAICS code 32519. Of the 

production volume, 97% (485,000 pounds) is used as a 

coloring agent for dyes and 3% (15,000 pounds) is used as a 

coloring agent for pigments. 

On line 3.A.1 of Form U, enter PF for type of 

process or use, 32519 for NAICS code, U07 for 

IFC, and 100% for production volume. Less than 

300,000 pounds is used for pigments. On line 

3.A.2 of Form U, enter PF for type of process or 

use, 32519 for NACIS code, U08 for IFC, and 0% 

for production volume. 

Site 1 manufactures 12,000,000 pounds of Chemical X for 

processing for incorporation into a mixture. All of the 

production is for use under NAICS code 32519. Of the 

production volume, 97% (11,640,000 pounds) is used as a 

coloring agent for dyes and 3% (360,000 pounds) is used as 

a coloring agent for pigments. 

On line 3.A.1 of Form U, enter PF for type of 

process or use, 32519 for NAICS code, U07 for 

IFC, and 100% for production volume. Because 

the use in pigments, IFC U08, accounts for 300,000 

pounds or more, on line 3.A.2 of Form U, enter PF 

for type of process or use, 32519 for NAICS code, 

U08 for IFC, and 3% for production volume. 

4.8.1.5 Number of Sites Code

 For each unique combination of process/use, NAICS, and IFC codes, report the total 

number of industrial sites, including those not under your control, that process or use each 

reported chemical substance to the extent that such information is readily obtainable (40 CFR 

710.52(c)(4)(i)(E)). In the event you both manufacture (including import) and process or use the 

same reportable chemical substance at the reporting plant site, your site would be counted as 

both a manufacturing site in Part II of Form U and a processing or use site reported in Part III of 

Form U (40 CFR 710.52(c)(4)). For each substance, report the code listed in Table 4-7 that 

corresponds to the appropriate number range. To claim this information as confidential, check 

the CBI box. 
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Table 4-7. Codes for Reporting Numbers of Sites 

Codes Range 

S1 Less than 10 

S2 At least 10 but less than 25 

S3 At least 25 but less than 100 

S4 At least 100 but less than 250 

S5 At least 250 but less than 1,000 

S6 At least 1,000 but less than 10,000 

S7 10,000 or more 

4.8.1.6 Number of Workers Code

 For each unique combination of process/use code, NAICS code, and IFC code, estimate 

the total number of workers that are reasonably likely to be exposed to the chemical substance at 

sites that process or use the substance to the extent that such information is readily obtainable 

(40 CFR 710.52(c)(4)(i)(F)). Include workers at sites which are not under your control as well 

as those at sites you control. This information must be reported to the extent that it is readily 

obtainable. For each substance, report the range code listed in Table 4-8 that corresponds to the 

estimated number of workers. To claim this information as confidential, check the box adjacent 

to the reported information. 

Table 4-8. Codes for Reporting Number of Workers Reasonably Likely to be Exposed 

During Processing and Use 

Code Range of Workers Reasonably Likely to be Exposed 

W1 Fewer than 10 

W2 At least 10 but fewer than 25 

W3 At least 25 but fewer than 50 

W4 At least 50 but fewer than 100 

W5 At least 100 but fewer than 500 

W6 At least 500 but fewer than 1,000 

W7 At least 1,000 but fewer than 10,000 

W8 10,000 or more 

 “Reasonably likely to be exposed” means “an exposure to a chemical substance which, 

under foreseeable conditions of manufacture (including import), processing, distribution in 

commerce, or use of the chemical substance, is more likely to occur than not to occur. Such 

exposures would normally include, but would not be limited to, activities such as charging 

reactor vessels, drumming, bulk loading, cleaning equipment, maintenance operations, materials 

handling and transfers, and analytical operations. Covered exposures include exposures through 

any route of entry (inhalation, ingestion, skin contact, absorption, etc.), but excludes accidental 

or theoretical exposures” (40 CFR 710.43). 
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 Persons reasonably likely to be exposed to a chemical substance include workers whose 

employment requires them to pass through areas where chemicals are manufactured, processed, 

or used (e.g., production workers and foremen, process engineers, and plant managers). Workers 

employed to drive vehicles that transport the chemical should be included in the number of 

workers reasonably likely to be exposed to the chemical substance if they come into contact with 

the chemical during loading or unloading. For example, workers engaged in the connection or 

disengagement of hoses used to load or unload the chemical should be included. However, 

workers involved solely with transporting chemicals in sealed (totally enclosed with no potential 

for exposure) containers should not be included. 

 In addition, when a site employs temporary, seasonal, or contract workers in the 

manufacture of a reportable chemical substance, these workers should be included in the number 

of workers reasonably likely to be exposed to a chemical substance if they work in areas where 

the chemical is manufactured. The term does not include those employees whose jobs are 

unassociated with potential exposures to a substance or mixture (e.g., administrative staff who 

never enter areas where the chemical is manufactured) and who are unlikely to be exposed to a 

chemical substance for even a brief period of time. No allowance is made for personal protective 

equipment or for engineering controls that reduce but do not preclude exposure to a chemical 

substance; however, if contact between a worker and a chemical is highly improbable, the 

worker should not be included among those persons reasonably likely to be exposed to the 

chemical substance. 

4.8.2 Part III - Section B: Commercial and Consumer Use Data (Blocks 3.B.1 through 

3.B.10) 

 For purposes of IUR reporting, a commercial use means the use of a chemical substance 

or mixture in a commercial enterprise providing saleable goods or a service (such as painting 

contractors using paint products) (40 CFR 710.43). A consumer use, on the other hand, means 

the use of a chemical substance that is directly, or as part of a mixture, sold to or made available 

to consumers for their own use in or around a permanent or temporary household or residence or 

in or around a school or recreational area (40 CFR 710.43). 

 You are required to report readily obtainable information concerning the commercial and 

consumer end uses of each reportable chemical substance manufactured (including imported) at 

sites you control and at sites controlled by people to whom you have either directly or indirectly 

(including through a broker/distributor, from a customer, etc.) distributed the reportable chemical 

substance (40 CFR 710.52(c)(4)). As with the industrial processing and use information, this 

requirement applies only to each chemical substance manufactured (including imported) in 

annual quantities of 300,000 pounds or more, and you are required only to report information to 

the extent that it is readily obtainable. If this information is not readily obtainable, enter ‘NRO’ 

for “not readily obtainable” in the box corresponding to that data element. To claim this 

information as confidential, check the CBI box next to the information you entered. 

4.8.2.1 Commercial and Consumer Product Category Code

 You must designate up to ten commercial and consumer product categories that 

correspond to the actual use of the chemical substance by selecting from the codes listed in Table 

4-9 (40 CFR 710.52(c)(4)(ii)(A)). Guidance on the scope of these categories is provided in 
Chapter 4.0 Completing Form U 

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Appendix E. If more than ten codes apply, you need report only the ten codes for the chemical 

substance that cumulatively represent the largest percentage of production volume, measured by 

weight (40 CFR 710.52(c)(4)(ii)(A)). To claim this information as confidential, check the CBI 

box. 

Table 4-9. Codes for Reporting Commercial and Consumer Product Categories 

Codes Category 

C01 Adhesives and sealants 

C02 Agricultural products (non-pesticidal) 

C03 Artists’ supplies 

C04 Automotive care products 

C05 Electrical and electronic products 

C06 Fabrics, textiles and apparel 

C07 Glass and ceramic products 

C08 Lawn and garden products (non-pesticidal) 

C09 Leather products 

C10 Lubricants, greases and fuel additives 

C11 Metal products 

C12 Paints and coatings 

C13 Paper products 

C14 Photographic supplies 

C15 Polishes and sanitation goods 

C16 Rubber and plastic products 

C17 Soaps and detergents 

C18 Transportation products 

C19 Wood and wood furniture 

C20 Other 

4.8.2.2 Use in Product(s) Intended for Children

 You must determine, within each commercial and consumer product category reported, 

whether any amount of each reportable chemical substance manufactured (including imported) 

by you is present in or on any consumer product(s) intended for use by children age 14 or 

younger, regardless of the concentration of the substance remaining in or on the product (40 CFR 

710.52(c)(4)(ii)(B)). If you determine, based on readily obtainable information, that your 

chemical substance or mixture is used in a consumer product intended for use by children, report 

a “Y” in the appropriate box in the “Used in Product(s) Intended for Children” column in Part 

III.B of Form U. If you determine, based on readily obtainable information, that your chemical 

substance or mixture is not used in a consumer product intended for use by children, report an 

“N.” If this information is not readily obtainable, enter “NRO” in the appropriate box. To claim 

this information as confidential, check the CBI box. 

 EPA defines “intended for use by children” to mean the chemical substance or mixture is 

used in or on a product that is specifically intended for use by children age 14 or younger (40 
Chapter 4.0 Completing Form U 

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CFR 710.43). Your chemical substance or mixture is intended for use by children when you 

answer “yes” to at least one of the following questions for the product into which your chemical 

substance or mixture is incorporated: 

1. Is the product commonly recognized (i.e., by a reasonable person) as being 

intended for children age 14 or younger? 

2. Does the manufacturer of the product state through product labeling or other 

written materials that the product is intended or will be used by children age 14 or 

younger? or 

3. Is the advertising, promotion, or marketing of the product aimed at children age 

14 or younger? 

 Table 4-10 illustrates some examples of “Use in Product(s) Intended for Children.” For 

example, certain products, like crayons, coloring books, diapers, and toy cars - to name a few - 

are typically used by children age 14 or younger. If you determine, based on readily obtainable 

information, that your chemical substance or mixture is used in crayons, for example, you would 

report a “Y” in the Children’s Product column for category C01. 

 Certain products, such as household cleaning products, automotive supplies, and 

lubricants, are not typically intended to be used by children age 14 or younger. As such, if you 

determine, based on readily obtainable information, that your chemical substance or mixture is 

used in automotive care products and lubricants, for example, you would report an “N” in the 

Children’s Use column for categories C04 and C10. 

Table 4-10. Examples of Products Intended for Children 

Codes Category Examples 

C01 Adhesives and sealants Craft glue, model glue 

C02 Agricultural products (non-pesticidal) Typically, products in this category are not likely to be 

intended for use by children 14 or younger 

C03 Artists’ supplies Chemicals used as colorants in crayons, coloring inks, 

markers 

C04 Automotive care products Typically, products in this category are not likely to be 

intended for use by children 14 or younger 

C05 Electrical and electronic products Electronic games, remote control cars 

C06 Fabrics, textiles and apparel Children’s clothing, generally 

C07 Glass and ceramic products Porcelain dolls 

C08 Lawn and garden products (nonpesticidal) Lawn and gardening tools designed specifically for children 

(e.g., kids rake) 

C09 Leather products Shoes, jackets, baseball gloves 

C10 Lubricants, greases and fuel additives Typically, products in this category are not likely to be 

intended for use by children 14 or younger 

C11 Metal products Toy trucks, toy cars, wagons 

C12 Paints and coatings Finger paints, water colors intended for use by children 

C13 Paper products Diapers, baby wipes, coloring books 
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Table 4-10. Examples of Products Intended for Children 

Codes Category Examples 

C14 Photographic supplies Typically, products in this category are not likely to be 

intended for use by children 14 or younger 

C15 Polishes and sanitation goods Typically, products in this category are not likely to be 

intended for use by children 14 or younger 

C16 Rubber and plastic products Pacifiers, action figures, balls 

C17 Soaps and detergents Baby shampoo, children's bubble bath 

C18 Transportation products Child’s car seat 

C19 Wood and wood furniture Baby cribs, changing tables, wooden toys 

C20 Other Other items specifically intended for use by children age 14 

or younger 

4.8.2.3 Percentage of Production Volume

 Estimate the percentage of your production volume for each reportable chemical 

substance that is attributable to each specific commercial and consumer end use carried out at 

sites under your control, as well as at sites that receive a reportable chemical substance from you 

either directly or indirectly (including through a broker/distributor, from a customer, etc.), to the 

extent that such information is readily obtainable (40 CFR 710.52(c)(4)(ii)(C)). You should 

round estimates to the nearest 10 percent of production volume (40 CFR 710.52(c)(4)(ii)(C)). 

However, you may not round a commercial and consumer product category that accounts for 5 

percent or less of the total production volume of a reportable chemical substance to 0 percent if 

the production volume attributable to that commercial and consumer product category is greater 

than or equal to 300,000 pounds (40 CFR 710.52(c)(4)(ii)(C)). In such cases, you must report 

the percentage of production volume attributable to that commercial and consumer product 

category to the nearest one percent of the production volume (40 CFR 710.52(c)(4)(ii)(C)). To 

claim this information as confidential for this substance, check the CBI box. 

 The total percentage of production volumes reported may add up to more than 100 

percent, given that you are reporting production volumes to the nearest 10 percent. The total 

percentage of production volume may add up to less than 100 percent due to rounding, or if a 

portion of your production is consumed in industrial uses, or if you cannot readily obtain 

information about how all of your production volume is used in commercial and consumer 

products, or if there are more than 10 commercial or consumer product categories applicable to 

your chemical substance. 

4.8.2.4 Maximum Concentration Code

 When the chemical substance you manufacture (including import) is used in commercial 

and consumer products, you are required to report the estimated typical maximum concentration 

(measured by weight) of each chemical substance in each commercial and consumer product 

category reported in Part III of Form U (40 CFR 710.52(c)(4)(ii)(D)). For each substance used 

in a commercial and consumer product reported in Part III, select the appropriate concentration 

range listed in Table 4-3, and enter the corresponding reporting code in Part III, Section B of 

Form U. Such information is required only to the extent that it is readily obtainable by you; 
Chapter 4.0 Completing Form U 

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otherwise, insert NRO in this box to denote that the information is not readily obtainable. The 

reporting range codes are the same as those listed in Table 4-3. To claim this information as 

confidential, check the CBI box adjacent to the information you report. 
Chapter 5.0 How to Assert Confidentiality Claims 

5-1

5.0 How to Assert Confidentiality Claims 

 Under the proper circumstances, information submitted to EPA under the IUR can be 

claimed confidential. However, such claims will not be accepted and honored if they are not 

asserted as required at the time information is submitted to EPA or if they are submitted in a 

manner inconsistent with the regulations. 

 You can claim certain information submitted to EPA under the IUR regulation as 

confidential if you believe that doing so is warranted under the questions for determining 

confidentiality found within 40 CFR 2.208. EPA’s procedures for processing and reviewing 

confidentiality claims are set forth at 40 CFR Part 2, Subpart B and 40 CFR 710.58. To claim 

information as confidential, you must check the appropriate boxes on Form U and have an 

authorized official sign the certification statement on the reporting form (40 CFR 710.58). If you 

fail to do so, EPA could release the information to the public without further notice to you. By 

signing the certification statement you certify that your claims of confidentiality are made to the 

best of your knowledge. EPA strongly encourages you to review confidentiality claims carefully 

to ensure that the information in question falls under the protection of TSCA Section 14 and 

fully meets the substantive questions within the Part 2 regulations referred to above. 

 Procedures for claiming information submitted electronically (such as a submission on a 

CD) as confidential are specified in 40 CFR 710.52(c). CBI must not be submitted by e-mail. 

Instructions for submitting CBI using the electronic reporting software can be found on the IUR 

Website at www.epa.gov/oppt/iur. 

 Specific procedures to claim the identity of the reported chemical and the identity of the 

site as CBI are addressed in the following subsections. Table 5-1 summarizes the special 

considerations for these data elements. 

Table 5-1. Special Considerations for Asserting Confidentiality Claims 

Data Element Asserting a Confidentiality Claim 

Chemical Identity Check CBI box in Part II Section A, and submit answers to questions in 40 CFR 

710.58(b)(1). (The questions are reproduced in Table 5-2.) 

Site Identity Check CBI box in Part II Block 2.B.2 and submit written answers to questions in 

Table 5-3. See 40 CFR 710.58(c)(1). (The questions are reproduced in Table 5-3.) 

5.1 Chemical Identity 

 You may assert a confidentiality claim for the specific identity of a chemical substance 

only if EPA treats the identity of that substance as confidential in the TSCA Inventory at the 

time your report is submitted (i.e., the substance is not on the public portion of the Inventory) (40 

CFR 710.58(b)). Both confidential and nonconfidential substances can be included in the same 

submission. Confidential substances can be included in reports submitted on electronic media 

but confidential information should not be submitted thru the internet unless the report is 

encoded and submitted through EPA’s electronic data exchange. Do not submit confidential 

business information by email. 
Chapter 5.0 How to Assert Confidentiality Claims 

5-2

 A claim of confidentiality for the identity of a chemical will not be accepted unless 

accompanied by a separate written substantiation for each chemical substance claimed as CBI. 

To assert a claim of confidentiality for the identity of a reportable chemical substance, you must 

check the appropriate CBI box in Part II, Section A of Form U and submit detailed written 

answers to the questions at 40 CFR 710.58(b)(1), which are repeated in Table 5-2. In addition, 

an authorized official from your company must sign and date the certification statement on 

Form U. The answers must be complete and specific as to the chemical substance in question. If 

any of the information contained in the answers to these questions is asserted to contain CBI, 

you must clearly identify the information that is claimed confidential by marking the specific 

information on each page with a label such as “confidential business information,” “proprietary,” 

or “trade secret” (40 CFR 710.58(b)(2)). If the required substantiation does not accompany your 

Form U, EPA may make the chemical identities reported on the form available to the public 

without further notice to you. 

 If you are manufacturing (including importing) a chemical substance that is currently 

listed in the TSCA Inventory as confidential, you are encouraged not to assert confidentiality 

claims if circumstances are now such that confidentiality is no longer necessary. If you report a 

previously confidential substance as nonconfidential, that substance will subsequently be listed 

in the TSCA Inventory as nonconfidential. 

Table 5-2. Substantiation Questions To Be Answered When Making Chemical 

Identity CBI Claims (from 40 CFR 710.58(b)(1)) 

No. Question 

1. What harmful effects to your competitive position, if any, do you think would result from the identity of 

the chemical substance being disclosed in connection with reporting under the IUR? How could a 

competitor use such information? Would the effects of disclosure be substantial? What is the causal 

relationship between the disclosure and the harmful effects? 

2. How long should confidential treatment be given? Until a specific date, the occurrence of a specific 

event, or permanently? Why? 

3. Has the chemical substance been patented? If so, have you granted licenses to others with respect to the 

patent as it applies to the chemical substance? If the chemical substance has been patented, and therefore 

disclosed through the patent, why should it be treated as confidential? 

4. Has the identity of the chemical substance been kept confidential to the extent that your competitors do 

not know it is being manufactured or imported for a commercial purpose by anyone? 

5. Is the fact that the chemical substance is being manufactured (including imported) for a commercial 

purpose available to the public, for example, in technical journals, libraries, or State, local, or Federal 

agency public files? 

6. What measures have you taken to prevent undesired disclosure of the fact that the chemical substance is 

being manufactured (including imported) for a commercial purpose? 

7. To what extent has the fact that this chemical substance is manufactured (including imported) for 

commercial purposes been revealed to others? What precautions have been taken regarding these 

disclosures? Have there been public disclosures or disclosures to competitors? 

8. Does this particular chemical substance leave the site of manufacture (including import) in any form (e.g., 

as product, effluent, emission)? If so, what measures have been taken to guard against the discovery of its 

identity? 

9. If the chemical substance leaves the site in a product that is available to the public or your competitors, 

can the substance be identified by analysis of the product? 
Chapter 5.0 How to Assert Confidentiality Claims 

5-3

Table 5-2. Substantiation Questions To Be Answered When Making Chemical 

Identity CBI Claims (from 40 CFR 710.58(b)(1)) 

No. Question 

10. For what purpose do you manufacture (including import) the substance? 

11. Has EPA, another Federal agency, or any Federal court made any pertinent confidentiality determinations 

regarding this chemical substance? If so, please attach copies of such determinations. 

5.2 Site Identity 

 Under the IUR, you may assert a claim of confidentiality for the identity of the 

manufacturing site if the linkage of the site with a reportable chemical is confidential and not 

publicly available (40 CFR 710.58(c). Claiming plant site as confidential protects the release of 

plant site name, address, city, county, state, zip code, and Dun & Bradstreet number. Claims for 

CBI should be limited to circumstances in which they are absolutely necessary. Note that 

claiming plant site as confidential does not protect the link between the chemical and the 

company name. It does protect the identity of the site where the chemical was manufactured 

(including imported). 

 To assert a claim of confidentiality for site identity, check the CBI box at Block 2.B.2 of 

Part II on IUR Form U indicating a confidentiality claim for plant site identity information and

substantiate that claim (40 CFR 710.58(c)). To substantiate your claim, you must submit with 

Form U detailed written answers to the two questions at 40 CFR 710.58(c)(1), which are also 

listed in Table 5-3. In addition, an authorized official from your company must sign and date the 

certification statement (40 CFR 710.58(c)(1)). Please note that both site and company 

information claims are to be made in conjunction with a specific chemical substance on page 2 

of Form U. For instance, if you report four chemical substances manufactured (including 

imported) at a given site on Form U (by photocopying additional pages of Parts II and III), you 

are able to claim the site identity as confidential for one chemical while releasing this 

information for the other three. This upfront substantiation is not required for company 

information CBI claims (Block 2.B.1 on Form U). You may claim company information nonCBI (Block 2.B.1) and plant site CBI (Block 2.B.2) but not vice-versa. If company information 

is CBI, the plant site must also be CBI. 

Table 5-3. Substantiation Questions To Be Answered When Making Plant 

Site Identity CBI Claims (from 40 CFR 710.58(c)(1)) 

No. Question 

1. Has site information been linked with a chemical identity in any other Federal, state, or local reporting 

scheme? For example, is the chemical identity linked to a facility in a filing under the EPCRA section 311, 

namely through a Material Safety Data Sheet (MSDS)? If so, identify all such schemes. Was the linkage 

claimed as confidential in any of these instances? 

2. What harmful effect, if any, to your competitive position do you think would result from disclosure of the 

identity of the site and the chemical substance? How could a competitor use such information? Would the 

effects of disclosure be substantial? What is the causal relationship between the disclosure and the harmful 

effects? 
Chapter 5.0 How to Assert Confidentiality Claims 

5-4

 If you assert that any of the information contained in the answers to these questions 

contains CBI, you must clearly identify the information that is claimed confidential by marking 

the specific information on each page with a label such as “confidential business information,” 

“proprietary,” or “trade secret” (40 CFR 720.58(c)(2)). If no claim of confidentiality is indicated 

on the Form U submitted to EPA under this part, or if confidentiality claim substantiation is not 

submitted with Form U, EPA may make the information available to the public without further 

notice to you. 

5.3 Additional Data Elements 

 You may claim any of the information reported under the IUR as confidential. Form U 

contains CBI boxes for the data elements reported in Parts II and III. To assert a claim of 

confidentiality for a given data element, check the CBI box for that data element as discussed in 

Section 4.0. 
Chapter 6.0 How to Submit Your Form U to EPA 

6-1

6.0 How to Submit Your Form U to EPA 

 Information reported for the IUR must be submitted either on electronic media (not email) or on a printed copy of Form U (40 CFR 710.52). Information may also be submitted 

electronically using EPA’s Central Data Exchange as described below. Separate forms are 

required for each plant site (40 CFR 710.52). If you report information for more than one 

chemical at your site, you should make the necessary number of photocopies of Parts II and III 

(i.e. the second page of IUR Form U) and report information for only one chemical on each 

photocopy. Each preprinted copy of the 2006 Form U bears an individual report number. EPA 

will assign report numbers to electronic submissions and forms obtained from the Internet when 

they are received from you. You are not required to enter any information in the report number 

box in the upper right hand corner of Form U. See Chapter 7 for information on obtaining copies 

of Form U. 

 EPA will mail a reminder of the need to report and instructions on how to get the 

reporting documents, including the reporting form and reporting instructions, to those companies 

that reported in the IUR submission period that occurred immediately prior to the current 

submission period (i.e. to the 2002 IUR submitters). Failure to receive such a letter does not 

obviate or otherwise affect the requirement to submit a timely report. If you did not receive a 

letter but are required to report, you may obtain a copy of the reporting package from EPA by 

accessing the EPA website at www.epa.gov/oppt/iur, by calling the EPA TSCA Hotline at (202) 

554-1404 or TDD (202)-554-0551, or by sending an e-mail message to the EPA TSCA Hotline 

at TSCA-Hotline@epa.gov. If you wish to send a written request for this information, send your 

request through the U.S. Postal Service to: 

 TSCA Hotline (7408M) 

 U.S. Environmental Protection Agency 

 Office of Pollution Prevention and Toxics 

 Ariel Rios Building 

 1200 Pennsylvania Avenue, N.W. 

 Washington, DC 20460 

You may also deliver your request by hand or courier to the following address: 

 IUR Submissions Coordinator 

 U.S. EPA - OPPT 

 EPA East Bldg., Room 6428 

 1201 Constitution Avenue, N.W. 

 Washington, DC 

6.1 Sending Forms to EPA 

 You must use EPA’s IUR Form U to submit information in response to the requirements 

of this regulation (40 CFR 710.59(a)). Section 7.3 explains how you may obtain copies of 

Form U. 
Chapter 6.0 How to Submit Your Form U to EPA 

6-2

 Submit your completed written and/or electronic reporting form(s), certified by an 

authorized official, along with any CBI substantiation letters, to EPA at either of the following 

addresses (40 CFR 710.59(d)): 

 Submissions sent by the U.S. Postal Service: Submissions sent by courier: 

 IUR Submissions Coordinator (7407M) IUR Submissions Coordinator 

 U. S. Environmental Protection Agency U.S. EPA - OPPT 

 Office of Pollution Prevention and Toxics EPA East Building 

 Ariel Rios Building Room 6428 

 1200 Pennsylvania Avenue, N.W. 1201 Constitution Ave., N.W. 

 Washington, DC 20460 Washington, DC 

 To reduce the likelihood of damage to electronic media, it is suggested that diskettes or 

CDs be submitted by hand delivery. 

6.2 Submitting Forms through the Central Data Exchange (CDX) 

Beginning in 2006, Inventory Update Reporting may be accomplished electronically 

using EPA’s Central Data Exchange (CDX). Before you can submit data using CDX, you must 

register with CDX for the Electronic IUR program at http://cdx.epa.gov/epa_home.asp. You will 

be asked to agree to Terms and Conditions, provide information about your organization and 

yourself, select a user name and password, create a secret question and answer pair for password 

resets, and download, complete, and mail an electronic signature agreement to EPA. Once EPA 

receives the agreement, EPA will send a notice to your registered email address notifying you 

that your CDX account has been activated, allowing you to upload your IUR submission through 

CDX using the software provided by EPA. 

 To create an IUR file for electronic submission through CDX, use the IUR Reporting 

Software (eIUR) developed and made available by EPA for downloading at 

http://www.epa.gov/opptintr/iur/. The IUR Reporting Software will guide you through the 

process of creating an IUR submission at your local workstation. Once your submission has 

been completed, validate your submission using the software, create and save the submission as 

an XML (default format) and a PDF file (for your records), and choose CDX as the submission 

path. The person submitting the report will be asked to provide their CDX user name and 

password to electronically sign and certify the submission. The software will encrypt the file 

and allow you to save it on your computer. Selecting the “Connect to CDX Website” button on 

the software will open a web browser to the CDX home page and begin the electronic 

submission process. You will need to log in and select eIUR from your “MY CDX” Homepage. 

 At the file upload screen, select your eIUR file and then press “submit.” 

 After your IUR submission has been sent to CDX, you will be taken to a page which 

provides a transaction identifier that uniquely identifies your submission. After the file is 

processed and the signature validated, messages will be sent to the registered email address and 

the associated CDX inbox. These messages will confirm receipt of the IUR submission and 

validation of the signature. 
Chapter 6.0 How to Submit Your Form U to EPA 

6-3

 To maintain the confidentiality of information submitted to EPA, the IUR Reporting Tool 

encrypts submissions using a Federal Information Processing Standards (FIPS) compliant 

encryption module. The submission is encrypted by the IUR Reporting Tool and remains 

encrypted during transmission to CDX, while stored and archived in CDX, and during 

transmission from CDX to EPA’s operational data repository. The file can only be decrypted 

with OPPT’s private key when it has reached its final destination, much like a hard copy 

submission that was mailed and can only be opened by the recipient for whom it was intended. 

 You may obtain a paper copy of record, in accordance with the Cross-Media Electronic 

Reporting Rule (CROMERR) of the file stored in EPA’s operational data repository by 

submitting a request to: U.S. Environmental Protection Agency, Attention: IUR Document 

Control Officer, Mail Code 7407M, 1200 Pennsylvania Avenue, NW, Washington, DC 20460-

0001. In your request, provide the transaction identifier provided to you upon submission of 

your report. A paper copy of your submission will be sent to the address provided at the time of 

registration. The paper copy can be compared to the PDF file that was saved prior to submitting 

the file through CDX. If any discrepancies are noted, notify EPA immediately using the same 

address as used for requesting the paper copy of your submission. 

6.3 Correcting Errors in Submissions for Original Inventory 

 In reporting under the IUR, you may find that an error was made when you reported for 

the original Inventory in 1978 or 1979. If that error falls into one of the following categories: 

y The chemical identity originally reported was incomplete or inaccurate; 

y An isolated intermediate produced during the manufacture of a substance was not 

 recognized when previously reported for the Inventory; or 

y EPA informed your company of a reporting error and requested a correction from 

you, to which you did not respond. 

You should file an Inventory Correction, following the procedures outlined in the Federal 

Register notice of July 29, 1980 (45 FR 50544). Reference the original Inventory report form 

and page number (if appropriate) when you file a correction. For copies of the Federal Register

notice or further assistance with an Inventory Correction, you may contact: 

 TSCA Hotline (7408M) 

 U.S. Environmental Protection Agency 

 Office of Pollution Prevention and Toxics 

 Ariel Rios Building 

 1200 Pennsylvania Avenue, N.W. 

 Washington, DC 20460 

You may also contact the TSCA-Hotline by telephone at (202) 554-1404 or by email sent to 

tsca-hotline@epa.gov. 

 Submit your Inventory Correction requests to EPA with your copies of Form U. Your 

Form U should report the chemical substance you are actually manufacturing or importing. 
Chapter 6.0 How to Submit Your Form U to EPA 

6-4

Explain the correction in a cover letter that specifically references the number of the correction 

form, the Form U number, and the Form U report line number. The act of correcting errors in 

submissions to the original Inventory does not grant the person making the correction immunity 

from enforcement action for any possible violations of the original Inventory Reporting Rule. 

6.4 Recordkeeping Requirements 

 The Inventory regulations require you to retain records on IUR reports for 5 years 

beginning on the last day of the applicable submission period (40 CFR 710.57). For example, if 

you submit an IUR report for a submission period ending December 23, 2006, you would be 

required to retain the records on which the report is based until December 23, 2011. Submitters 

are encouraged to retain their records longer than 5 years to ensure that past records are available 

as a reference when new submissions are being generated. 

 As long as the records are maintained in a manner consistent with normal business 

practice, you may determine their exact format. Required records include those that show the 

production volume, plant site, and site-limited status of each substance reported. If a substance 

is not reported because its site-specific annual production is less than 25,000 pounds, EPA 

suggests you maintain records to document your reasons for not filing Form U. 

 If you qualify as an exempt small manufacturer, you need to keep records only for those 

chemical substances that you are required to report; however, in claiming an exemption, you 

bear the burden of documenting that you qualify for the exemption. 

6.5 Special Instructions for Importers 

 This section applies to importers who do not know the specific chemical identity of a 

substance because the foreign supplier chooses to keep it confidential. If you are such an 

importer, you are still responsible for ensuring that the IUR information is submitted to EPA. 

You can accomplish this by having your foreign supplier complete some of the information on 

Form U, as follows: 

 1. Include a cover letter with your Form U, stating, “The identifying numbers and 

specific chemical identities for the substances on this form and the technical 

contact will be submitted by our foreign supplier.” 

 2. Use a separate Form U for each foreign supplier who does not inform you of the 

identity of the chemical substances you are importing. Do not report by diskette 

or other electronic media. Do not combine submissions for chemical substances 

whose identity is unknown with reports for chemicals whose identity is known. 

 3. Photocopy a blank Form U before entering any information on the form. 

 4. On the original form, sign the certification statement, enter the technical contact, 

and complete Parts I through III for each chemical substance. In Part II, Section 

A, Block 2.A.1, instead of entering the identifying number, enter the trade name 

or other designation by which you know each chemical substance. Leave Block 

2.A.2 blank. Check the “Chemical CBI” box only if you wish to claim the 
Chapter 6.0 How to Submit Your Form U to EPA 

6-5

identities of the chemicals identified on the form as confidential (you must answer 

the substantiation questions described in Section 5.1). Send this original form to 

EPA at the address given in Section 6.1. 

 5. On the photocopy of the blank form, enter only the plant site information. Send 

this copy to your foreign supplier to complete and forward to EPA at the address 

in Section 6.1. 

 6. The foreign supplier should enter its technical contact and company information 

on the copy, complete Parts I through III, and enter the appropriate specific 

chemical identities in Part II, Section A. Make sure that your supplier 

understands which chemical identities belong with each copy of the Form U. If 

the foreign supplier wishes to claim the chemical identities as confidential, the 

supplier should check the “CBI” box and submit substantiation as described in 

Section 5.1. The supplier should include with Form U a letter stating that this 

information is being submitted by a foreign supplier on behalf of the importer, 

who should be identified. Information in the letter may be claimed as confidential 

by circling or bracketing the text to be protected and marking the page 

“CONFIDENTIAL.” Failure to so mark this information may result in EPA 

making the information available to the public without further notice to the 

supplier. The foreign supplier should then send the form and letter to EPA at the 

address in Section 6.1. 
Chapter 7.0 How to Obtain Copies of Documents Cited in These Instructions 

7-1

7.0 How To Obtain Copies of Documents Cited in 

This Guidance Document 

7.1 Obtaining Copies of the TSCA Regulations 

 The chemical inventory regulations, 40 CFR Part 710, are available on the internet at the 

following address: 

http://www.access.gpo.gov/nara/cfr/waisidx_05/40cfr710_05.html

You may also contact the TSCA hotline by telephone at (202) 554-1404 or by email tscahotline@epa.gov for assistance. 

7.2 Obtaining Copies of the Public Portion of the TSCA Inventory 

The public portion of the TSCA Inventory is available on computer tape, diskettes, and 

CD-ROM. These can be obtained from the National Technical Information Service (703-487-

4650 or 1-800-553-NTIS). The computer tape version consists of two tapes. The first tape, the 

Inventory Preferred Name File, is sorted by CAS Registry Number. It contains the CAS 

Registry Number, CA Index/Preferred Name, molecular formula, and if applicable, the substance 

definition and appropriate EPA flags (including the “XU” flag for substances exempt from 

reporting under the Inventory Update Rule) for nonconfidential substances. The second tape, the 

Inventory Synonym Name file, contains the same data elements as the first tape but differs in 

two ways. First, it is sorted by chemical name, not CAS Registry Number. Second, in addition 

to the CA Index/Preferred names, this file also includes valid names (synonyms) as supplied to 

EPA by Inventory submitters. In contrast to the printed version of the Public Inventory, which 

includes CAS-derived synonyms, the synonyms listed on this tape are only those reported to 

EPA by Inventory submitters. 

 The CD ROM version contains the information on both computer tapes combined, with 

duplicate information removed. CAS Registry Numbers are listed in numerical order. 

 The tapes and CD ROM contain only information on nonconfidential chemical 

substances. They do not refer in any way to chemicals on the TSCA Inventory claimed as 

confidential. 

 Contact the following for ordering information for these products: 

 National Technical Information Service 

 5285 Port Royal Road 

 Springfield, VA 22161 

 Telephone: (703) 487-4650 or (800) 553-NTIS 
Chapter 7.0 How to Obtain Copies of Documents Cited in These Instructions 

7-2

7.3 Obtaining Copies of Form U 

 A copy of IUR Form U may be downloaded or printed from the OPPT IUR website 

found at the following address: 

http://www.epa.gov/oppt/iur

 Electronic and printed copies of Form U can be obtained from the TSCA hotline at the 

following address: 

 TSCA Hotline (7408M) 

 U.S. Environmental Protection Agency 

 Office of Pollution Prevention and Toxics 

 Ariel Rios Building 

 1200 Pennsylvania Avenue, N.W. 

 Washington, DC 20460 

You may also contact the TSCA Hotline by telephone at (202) 554-1404 or by email at 

tsca-hotline@epa.gov. 
Chapter 8.0 How to Request Assistance with Reporting 

8-1

8.0 How to Request Assistance with IUR 

Reporting 

 Write to the address below if you need additional information on or assistance with: 

y Determining your reporting obligations; 

y Mechanics of completing Form U; 

y Entering data onto a computer diskette or CD for submission; and 

y Determining the status of forms/diskettes you have submitted. 

Send requests by the U.S. Postal Service to: Or by hand delivery to: 

 TSCA Hotline (7408M) IUR Submissions Coordinator 

 U.S. Environmental Protection Agency U.S. EPA - OPPT 

 Office of Pollution Prevention and Toxics EPA East Building 

 Ariel Rios Building Room 6428 

1200 Pennsylvania Avenue, N.W. 1201 Constitution Ave., N.W. 

 Washington, DC 20460 Washington, DC 

 You can also contact the TSCA Hotline by telephone at (202) 554-1404 or by email at 

tsca-hotline@epa.gov for assistance. 
Appendix A Reporting Form 

A-1

Appendix A 

2006 Form U 
Appendix A Reporting Form 

PAGE 1 of ____

(IMPORTANT: Type only, read instructions before completing form) 

FOR EPA USE ONLY

U.S. Environmental Protection Agency Report Number

Mark “X” here if this is a 

revision to the previous report 

Washington, DC 20460

Partial Updating of TSCA Inventory Data Base 

A-2

Site Report 

(Section 8(a) Toxic Substances Control Act, 15 U.S.C. 2607(a)) FORM 

U 2006

CERTIFICATION

Certification Statement: I hereby certify to the best of my knowledge and belief that Parts I and II have been completed in 

compliance with the requirements of 40 CFR 710.52(c)(1), (2), and (3); Part III of this form has been completed in 

compliance with the requirements of 40 CFR 710.52(c)(4); and any confidentiality claims are true and correct as to that 

information for which they have been asserted.

Signature Date signed 

Name (printed) Official Title 

PART I. SITE IDENTIFICATION INFORMATION

SECTION A. COMPANY INFORMATION* 

1.A.1 Company Name 

1.A.2 Company Dun & Bradstreet Number 

SECTION B. SITE INFORMATION*

1.B.1 Site Name 

1.B.2 Site Dun & Bradstreet Number EPA Facility Identification Number For EPA Use Only 

Leave Blank 

1.B.3 Street Address (Line 1) 

1.B.4 Street Address (Line 2) 

1.B.5 City 1.B.6 County / Parish 

1.B.7 State 1.B.8 Zip code 

SECTION C. TECHNICAL CONTACT INFORMATION* 

1.C.1 Name 1.C.2 Telephone 

1.C.3 Email Address 

1.C.4 Mailing Address (Line 1) 

1.C.5 Mailing Address (Line 2) 

1.C.6 City 1.C.7 State 1.C.8 Zip Code

* Confidentiality claims for information in Part I, Sections A, B, and C, are made, as necessary, for each chemical substance on subsequent pages. 

EPA Form Number <7740-8> (Rev 06/07/06) - Previous editions are obsolete 

Form Approved OMB Number: 2070-0162 (expiration May 2009)
Appendix A Reporting Form 

Page ___ of ___ 

FOR EPA USE ONLY

PART II. MANUFACTURING INFORMATION 

SECTION A. CHEMICAL IDENTIFICATION CBI 

2.A.1 Chemical Identifying Number 2.A.2 ID Code 

2.A.3 Chemical Name 

SECTION B. MANUFACTURING INFORMATION 

CBI 

A-3

b. Percent of 

Production 

2.B.1 Company Information Volume in Each

2.B.2 Site Information^

a. Physical Form 

Physical Form

2.B.3 Technical Contact Information Check 

All That 

Apply 

CBI Percent CBI 

2.B.4 Site Limited (Y/N) 2.B.10 Dry Powder 

2.B.5 Activity 

(Check all that apply) Manufacture

Import

2.B.11 Pellets or Large 

Crystals 

2.B.6 Manufactured Production 

Volume (LB) 

2.B.12 Water or Solvent 

Wet Solid 

2.B.7 Imported Production Volume (LB) 2.B.13 Other Solid 

2.B.8 Number of Workers (code) 2.B.14 Gas or Vapor 

2.B.9 Maximum Concentration (code) 2.B.15 Liquid 

PART III. PROCESSING AND USE INFORMATION 

Complete Part III, Sections A and B if the sum of the production volumes noted in Blocks 2.B.6 and 2.B.7 is 300,000 pounds or more. 

SECTION A. INDUSTRIAL PROCESSING AND USE DATA N/A 

a. Type of Process or 

Use

b. (5-digit) NAICS 

Code

c. Industrial Function 

Category

d. Percent Production 

Volume

e. Number of 

Sites

f. Number of 

Workers

Code CBI Code CBI Code CBI Percent CBI Code CBI Code CBI 

3.A.1 

3.A.2 

3.A.3 

3.A.4 

3.A.5 

3.A.6 

3.A.7 

3.A.8 

3.A.9 

3.A.10

SECTION B. COMMERCIAL AND CONSUMER USE DATA N/A 

a. Commercial and Consumer 

Product Category 

b. Used in Products 

Intended for Children 

c. Percent Production Volume 

associated with each category 

d. Maximum Concentration 

associated with each category 

Code CBI Y/N/NRO CBI Percent CBI Code CBI 

3.B.1 

3.B.2 

3.B.3 

3.B.4 

3.B.5 

3.B.6 

3.B.7 

3.B.8 

3.B.9 

3.B.10

^

Substantiation required for CBI claims on chemical identity and site information. 
Appendix A Reporting Form 

A-4

Concerning EPA Disclosure Information 

If you submit information to EPA and claim any of it as confidential, EPA will publicly disclose that information only as 

allowed by the procedures set forth in 40 CFR Part 2. If no such claim accompanies the information when it is received, EPA may 

make that information public without further notice to you. 

 

Confidentiality Statements 

Information reported to EPA on the above form may be claimed as confidential by checking the appropriate CBI boxes. The 

person signing the certification statement attests to the truth of the following four statements concerning all information claimed as 

confidential: 

1. My company has taken measures to protect the confidentiality of the information and intends to continue to take such 

measures. 

2. The information is not, and has not been, reasonably obtainable by other persons without our consent (other than through 

discovery based on a showing of special need in a judicial or quasi-judicial proceeding). 

3. The information is not publicly available elsewhere. 

4. Disclosure of the information would cause substantial harm to our competitive position. 

Paperwork Reduction Act Notice 

The annual public burden for this collection of information, which is approved under OMB Control Number 2070-0162, is 

estimated to be approximately 265 hours per response for manufacturers of inorganic chemical substances and 560 hours per response 

for manufacturers of organic chemical substances. According to the Paperwork Reduction Act, "burden" means the total time, effort, 

or financial resources expended by persons to generate, maintain, retain, or disclose or provide information to or for a Federal agency. 

 For this collection it includes the time needed to review instructions; develop, acquire, install, and utilize technology and systems for 

the purposes of collecting, validating, and verifying information; processing and maintaining information; and disclosing or providing 

information; adjust the existing ways to comply with any previously applicable instructions and requirements; train personnel to be 

able to respond to a collection of information; search data sources; complete and review the collection of information; and transmit or 

otherwise disclose the information. An agency may not conduct or sponsor, and a person is not required to respond to, a collection of 

information unless it displays a currently valid OMB number. The OMB control number for this collection appears above. In 

addition, the OMB control numbers for EPA's regulations, after initial display in the final rule, are listed in 40 CFR part 9. 

Send comments on the Agency's need for this information, the accuracy of the provided burden estimates, and any suggested 

methods for minimizing respondent burden (including the use of automated collection techniques) to: Director, Collection Strategies 

Division, U.S. Environmental Protection Agency (Mail Code 2822), 1200 Pennsylvania Ave, N.W., Washington, D.C. 20460. 

Include the OMB control number in any correspondence, but do not submit the completed form to this address. The requested 

information should be submitted in accordance with the instructions accompanying the form, or as specified in the corresponding

regulation. 

Submitting Form U 

Submissions sent via the U.S. Postal Service: Submissions sent by Courier or Hand Delivery 

 IUR Submissions Coordinator (7407M) IUR Submissions Coordinator 

 U. S. Environmental Protection Agency U.S. EPA - OPPT 

 Office of Pollution Prevention and Toxics EPA East Building 

 Ariel Rios Building Room 6428 

 1200 Pennsylvania Avenue, N.W. 1201 Constitution Ave., N.W. 

 Washington, DC 20460 Washington, DC 
Appendix B Definitions

B-1

Appendix B 

Glossary 

The definitions and descriptions of terms used in IUR reporting provided below are taken 

from 40 CFR part 710 unless otherwise noted. 

Act is the Toxic Substances Control Act. 

Administrator means the Administrator of the U.S. Environmental Protection Agency, 

any employee or authorized representative of the Agency to whom the Administrator may either 

herein or by order delegate his/her authority to carry out his/her functions, or any other person 

who will by operation of law be authorized to carry out such functions. 

An Article is any manufactured item (1) which is formed to a specific shape or design 

during manufacture, (2) which has end-use function(s) dependent in whole or in part upon its 

shape or design during end use, and (3) which has either no change of chemical composition 

during its end use or only those changes of composition that have no commercial purpose 

separate from that of the article and that may occur as described in 40 CFR 710.4(d)(5); except 

that fluids and particles are not considered articles regardless of shape or design. 

Byproduct means a chemical substance produced without separate commercial intent 

during the manufacture or processing of another chemical substance(s) or mixture(s). 

Chemical substance means any organic or inorganic substance of a particular molecular 

identity, including any combination of such substances occurring in whole or in part as a result 

of a chemical reaction or occurring in nature, and any chemical element or uncombined radical; 

“chemical substance” does not include: 

(1) Any mixture; 

(2) Any pesticide when manufactured, processed, or distributed in commerce for use as a 

pesticide; 

(3) Tobacco or any tobacco product, but not including any derivative products; 

(4) Any source material, special nuclear material, or byproduct material; 

(5) Any pistol, firearm, revolver, shells, and cartridges; and 

(6) Any food, food additive, drug, cosmetic, or device, when manufactured, processed, or 

distributed in commerce for use as a food, food additive, drug, cosmetic, or device. 
Appendix B Definitions

B-2

Commerce means trade, traffic, transportation, or other commerce: (1) between a place 

in a State and any place outside of such State, or (2) which affects trade, traffic, transportation, 

or commerce described in (1). 

Commercial use means the use of a chemical substance or mixture in a commercial 

enterprise providing saleable goods or services (e.g., dry cleaning establishment, painting 

contractor). 

Consumer use means the use of a chemical substance that is directly, or as part of a 

mixture, sold or made available to consumers for their use in or around a permanent or 

temporary household or residence, in or around a school, or in or around recreational areas. 

Customs territory of the United States, as referenced in TSCA section 3 and defined in 

general note 2 of the Harmonized Tariff Schedule of the United States, includes only the States, 

the District of Columbia, and Puerto Rico. 

Distribute in commerce and distribution in commerce, when used to describe an 

action taken with respect to a chemical substance or mixture or article containing a substance or 

mixture, mean to sell or the sale of the substance, mixture, or article in commerce; to introduce 

or deliver for introduction into commerce, or the introduction or delivery for introduction into 

commerce of the substance, mixture, or article; or to hold or the holding of the substance, 

mixture, or article after its introduction into commerce. 

Importer means any person who imports any chemical substance or any chemical 

substance as part of a mixture or article into the customs territory of the United States and 

includes: (1) the person primarily liable for the payment of any duties on the merchandise, or (2) 

an authorized agent acting on his/her behalf (as defined in 19 CFR 101.1). 

Impurity means a chemical substance which is unintentionally present with another 

chemical substance. 

Industrial Function Categories represent the specific manner in which a chemical 

substance is used. The industrial function categories and their corresponding codes are listed in 

40 CFR 710.52(c)(4)(C) and are further described in Appendix E.

Industrial use means use at a site at which one or more chemical substances or mixtures 

are manufactured (including imported) or processed. 

An Inorganic chemical substances is any chemical substances that does not contain 

carbon or contains carbon only in the form of carbonato [=CO3], cyano [–CN], cyanato [–OCN], 

isocyano [–NC], or isocyanato [–NCO] groups, or the chalcogen analogues of such groups. For 

purposes of the IUR regulation, the following substances (with their associated CAS Registration 

Numbers) are also considered to be inorganic, even though they do not meet the section 

710.46(b)(3) definition of an inorganic substance: Carbon black, 1333-86-4; Carbon, 7440-44-0; 

Diamond, 7782-40-3; Graphite, 7782-42-5; and Charcoal, 16291-96-6. 

Intended for use by children means the chemical substance or mixture is used in a 

product that is specifically intended for use by children age 14 or younger. A chemical 
Appendix B Definitions

B-3

substance or mixture is intended for use by children when the submitter answers “yes” to at least 

one of the following questions for the product into which the submitter’s chemical substance or 

mixture is incorporated: 

(1) Is the product commonly recognized (i.e., by a reasonable person) as being intended 

for children age 14 or younger? 

(2) Does the manufacturer of the product state through product labeling or other written 

materials that the product is intended or will be used by children age 14 or younger? 

(3) Is the advertising, promotion, or marketing of the product aimed at children age 14 or 

younger? 

Intermediate means any chemical substance: 

(1) Which is intentionally removed from the equipment in which it is manufactured; and 

(2) Which either is consumed in whole or in part in chemical reaction(s) used for the 

intentional manufacture of other chemical substance(s) or mixture(s), or is 

intentionally present for the purpose of altering the rate of such chemical reaction(s). 

NOTE: The equipment in which it was manufactured includes the reaction vessel in which the 

chemical substance was manufactured and other equipment that is strictly ancillary to the 

reaction vessel, and any other equipment through which the chemical substance may flow during 

a continuous flow process, but does not include tanks or other vessels in which the chemical 

substance is stored after its manufacture. 

Known to or reasonably ascertainable by means all information in a person’s 

possession or control, plus all information that a reasonable person similarly situated might be 

expected to possess, control, or know. 

Manufacture means to manufacture, produce, or import for commercial purposes. 

Manufacture or import “for commercial purposes” means to import, produce, or 

manufacture with the purpose of obtaining an immediate or eventual commercial advantage and 

includes, for example, the manufacture or import of any amount of a chemical substance or 

mixture for commercial distribution, including for test marketing, or for use by the manufacturer, 

including use for product research and development, or as an intermediate. 

Master Inventory File is EPA's comprehensive list of chemical substances which 

constitute the Chemical Substance Inventory compiled under section 8(b) of TSCA. It includes 

substances reported under 40 CFR 710 subpart A and substances reported under 40 CFR part 

720 for which a Notice of Commencement of Manufacture or Import has been received under 40 

CFR 720.120. 

Microorganism means any combination of chemical substances that is a living organism 

and that meets the definition of microorganism at 40 CFR 725.3. Any chemical substance 

produced from a living microorganism is reportable under the IUR regulation unless otherwise 

excluded. 

Mixture is any combination of two or more chemical substances if the combination does 

not occur in nature and is not, in whole or in part, the result of a chemical reaction; except that 

“mixture” does include: 
Appendix B Definitions

B-4

(1) Any combination that occurs, in whole or in part, as a result of a chemical reaction if 

the combination could have been manufactured for commercial purposes without a 

chemical reaction at the time the chemical substances comprising the combination 

were combined and if, after the effective date or premanufacture notification 

requirements, none of the chemical substances comprising the combination is a new 

chemical substance; and 

(2) Hydrates of a chemical substance or hydrated ions formed by association of a 

chemical substance with water. 

Naturally occurring substance is any chemical substance which is naturally occurring 

and: (1) which is (i) unprocessed or (ii) processed only by gravitational means, by dissolution in 

water, by flotation, or by heating solely to remove water; or (2) which is extracted from air by 

any means (40 CFR 710.4(b)). 

New chemical substance means any chemical substance that is not included in the 

inventory compiled and published under subsection 8(b) of TSCA. 

Non-isolated intermediate means any intermediate that is not intentionally removed 

from the equipment in which it is manufactured, including the reaction vessel in which it is 

manufactured, equipment which is ancillary to the reaction vessel, and any equipment through 

which the substance passes during a continuous flow process, but not including tanks or other 

vessels in which the substance is stored after its manufacture. 

Person means any natural or juridical person including any individual, corporation, 

partnership, or association, any State or political subdivision thereof, or any municipality, any 

interstate body and any department, agency, or instrumentality of the Federal government. 

Polymer means any chemical substance described with the word fragments “*polym*”, 

“*alkyd”, or “oxylated” in the Chemical Abstracts Service Index or Preferred Nomenclature in 

the Chemical Substance Identities section of the 1985 edition of the TSCA Chemical Substance 

Inventory or in the Master Inventory File, where the asterisk (*) indicates that any sets of 

characters may precede, or follow, the character string defined. Polymers also include any 

chemical substance identified in the 1985 edition of the Inventory or the Master Inventory File as 

siloxane and silicone, silsesquioxane, a protein (albumin, casein, gelatin, gluten, hemoglobin), an 

enzyme, a polysaccharide starch, cellulose, or gum), rubber, or lignin. However, substances that 

result from hydrolysis, depolymerization, or chemical modification, regardless of the extent of 

these processes, of polymers so that the final products are no longer polymeric (e.g., a mixture of 

amino acids that is the result of hydrolysis of a polypeptide) are not considered to be polymers 

for purposes of IUR. 

Process means the preparation of a chemical substance or mixture, after its manufacture, 

for distribution in commerce (1) in the same form or physical state as, or in a different form or 

physical state from, that in which it was received by the person so preparing such substance or 

mixture; or (2) as part of a mixture or article containing the chemical substance or mixture. 

Process for “commercial purposes” means to process: (1) for distribution in commerce, 

including for test marketing purposes, or (2) for use as an intermediate. 
Appendix B Definitions

B-5

Processor means any person who processes a chemical substance or mixture. 

Readily obtainable information means information known to or readily obtainable by 

management and supervisory employees of the submitter company who are responsible for 

manufacturing, processing, technical services, or marketing of the reportable chemical substance. 

 Extensive file searches are not required. 

Reasonably likely to be exposed means an exposure to a chemical substance which, 

under foreseeable conditions of manufacture (including import), processing, distribution in 

commerce, or use of the chemical substance, is more likely to occur than not to occur. Such 

exposures would normally include, but would not be limited to, activities such as charging 

reactor vessels, drumming, bulk loading, cleaning equipment, maintenance operations, materials 

handling and transfers, and analytical operations. Covered exposures include exposures through 

any route of entry (inhalation, ingestion, skin contact, absorption, etc.), but excludes accidental 

or theoretical exposures. 

Repackaging means the physical transfer of a chemical substance or mixture, as is, from 

one container to another container or containers in preparation for distribution of the chemical 

substance or mixture in commerce. 

Reportable chemical substance means any chemical substance which is in the Master 

Inventory File at the beginning of a submission period described in 40 CFR 710.53, unless the 

substance is specifically exempted by 40 CFR 710.46. 

Reporting year is the calendar year in which information to be reported to EPA during 

an IUR submission period is generated (i.e., calendar year 2005 and the calendar year at 5-year 

intervals thereafter). 

Site means a contiguous property unit. Property divided only by a public right-of-way 

will be considered one site. There may be more than one manufacturing plant on a single site. 

For the purposes of imported chemical substances, the site will be the business address of the 

importer. 

Site-limited means a chemical substance is manufactured and processed only within a 

site and is not distributed for commercial purposes as a substance or as part of a mixture or 

article outside the site. Imported substances are never site-limited. Although a site-limited 

chemical substance is not distributed for commercial purposes outside the site at which it is 

manufactured and processed, the substance is considered to have been manufactured and 

processed for commercial purposes. 

Small quantities for purposes of scientific experimentation or analyses or chemical 

research on, or analysis of, such substance or another substance, including any such 

research or analysis for the development of a product means quantities of a chemical 

substance manufactured, imported, or processed or proposed to be manufactured, imported or 

processed that: 

(1) Are no greater than reasonably necessary for such purposes, and 

(2) After the publication of the revised inventory, are used by, or directly under the 

supervision of, a technically qualified individual(s). 
Appendix B Definitions

B-6

NOTE: Any chemical substances manufactured, imported, or processed in quantities less than 

1,000 pounds (454 kg) annually will be presumed to be manufactured, imported, or processed for 

research and development purposes. No person may report for the inventory any chemical 

substance in such quantities unless that person can certify that the substance was not 

manufactured, imported, or processed solely in small quantities for research and development. 

State is any state of the United States, the District of Columbia, the Commonwealth of 

Puerto Rico, the Virgin Islands, Guam, American Samoa, the Northern Mariana Islands, or any 

other territory or possession of the United States. 

Submission period means the period in which the information generated during the 

reporting year is submitted to EPA. 

Technically qualified individual is a person: 

(1) Who because of his/her education, training, or experience, or a combination of these 

factors, is capable of appreciating the health and environmental risks associated with 

the chemical substance that is used under his/her supervision, 

(2) Who is responsible for enforcing appropriate methods of conducting scientific 

experimentation, analysis, or chemical research in order to minimize such risks, and 

(3) Who is responsible for the safety assessments and clearances related to the 

procurement, storage, use, and disposal of the chemical substance as may be 

appropriate or required within the scope of conducting the research and development 

activity. The responsibilities in this paragraph may be delegated to another individual, 

or other individuals, as long as each meets the criteria in paragraph (1) of this 

definition. 

Test marketing means the distribution in commerce of no more than a predetermined 

amount of chemical substance, mixture, or article containing that chemical substance or mixture, 

by a manufacturer or processor to no more than a defined number of potential customers to 

explore market capability in a competitive situation during a predetermined testing period prior 

to the broader distribution of that chemical substance, mixture, or article in commerce. 

United States, when used in the geographic sense, means all of the states, territories, and 

possessions of the United States. 

Use means any utilization of a chemical substance or mixture that is not otherwise 

covered by the terms “manufacture” or “process.” Relabeling or redistributing a container 

holding a chemical substance or mixture where no repackaging of the chemical substance or 

mixture occurs does not constitute use or processing of the chemical substance or mixture. 
Appendix C Chemical Substances that are the Subject of Certain TSCA Actions

C-1

Appendix C 

Chemical Substances that are the Subject of Certain TSCA Orders, 

Proposed or Final TSCA Rules, or Relief Granted under Civil 

Actions

(as of June 2006)

Listed below are the CAS Registry Numbers (for non-confidential chemical substances) 

or Accession Numbers (for confidential substances) of substances that are the subject of a rule, 

proposed or promulgated under TSCA section 4, 5(a)(2), 5(b)(4), or 6; an order issued under 

section 5(e)or 5(f) of TSCA; or relief that has been granted under a civil action under sections 5 

or 7 of TSCA as of March 2006 (see 40 CFR 710.46 and 710.49). 

IMPORTANT: This document is intended to be an information resource. While EPA has 

tried to provide an accurate list of chemicals, the list may contain errors and omissions. This list 

should not be relied upon in lieu of relevant orders, Federal Register documents, or the Code of 

Federal Regulations. In the event of a conflict between this list and orders, Federal Register 

documents, or the Code of Federal Regulations, this list will not be considered controlling. 

In addition, please note that this list does NOT contain a full listing of all chemicals 

subject to the IUR rule. The list is only intended to include those chemicals which would 

otherwise be wholly or partially exempted from IUR requirements but for which information 

must be reported because they are the subject of certain TSCA actions as noted above. The 

exemptions for polymers, inorganic substances, or microorganisms do not apply for substances 

on these lists. The exemption for small businesses does not apply to some of the chemicals on 

these lists. The exemption for naturally occurring substances is still valid for chemicals on these 

lists, as discussed in Section 2.1.2.4 of this Instruction Manual. If after consulting the list you 

are uncertain as to the regulatory status of a chemical substance, see Section 8.0 for information 

on how to request assistance from EPA. 
Appendix C Chemical Substances that are the Subject of Certain TSCA Actions

C-2

Table C-1. Chemicals which are the Subject of a Proposed or Final Significant New Use 

Rule (TSCA Section 5(a)(2))

By Accession Number

15544 

30309 

32178 

38585 

41259 

42741 

43313 

44292 

45002 

49435 

49457 

50567 

52381 

52676 

53215 

53862 

55904 

56236 

57397 

58834 

59531 

59622 

60787 

62283 

62625 

64621 

65328 

65599 

65851 

66387 

66503 

66616 

67993 

68101 

68474 

69239 

71546 

72414 

73484 

73542 

73906 

73939 

73995 

75015 

76972 

77511 

77668 

77759 

77873 

78581 

79164 

80376 

80912 

81426 

84801 

87560 

87968 

88063 

88472 

90212 

91680 

93835 

97008 

97291 

97859 

101601 

101974 

102057 

102966 

103378 

103798 

105090 

105578 

106720 

106877 

107450 

108260 

109525 

112233 

112380 

112766 

113236 

114024 

115981 

119585 

120208 

121585 

121621 

121972 

122395 

122704 

122908 

123116 

123296 

123401 

123650 

123785 

123898 

124540 

124595 

125792 

125883 

126002 

126615 

127992 

128111 

128155 

128520 

129147 

129169 

129487 

129750 

129829 

130348 

130360 

130428 

130940 

131103 

131125 

131830 

132311 

132355 

132537 

132651 

132811 

132855 

133256 

133336 

133370 

133438 

133507 

134077 

134179 

134704 

135149 

135649 

135672 

135945 

136335 

136482 

136722 

136880 

137361 

137418 

137963 

138104 

138217 

138342 

138455 

138557 

138751 

139674 

139787 

140502 

141072 

141323 

141629 

141889 

141925 

142086 

142360 

143034 

143410 

143501 

143636 

143807 

143896 

143965 

144117 

144388 

144719 

144797 

145756 

145814 

146282 

146340 

146453 

146588 

146646 

146975 

147036 

147229 

147570 

147809 

147923 

148073 

148164 

148459 

148835 

149021 

149281 

150595 

150711 

151247 

151372 

151690 

152115 

152386 

152897 

152955 

153196 

153232 

153312 

153889 

154473 

154724 

154768 

154917 
Appendix C Chemical Substances that are the Subject of certain TSCA Actions 

Table C-1 (Continued) 

C-3

155750 

156015 

156128 

156140 

156413 

156424 

156526 

157109 

157701 

158226 

158511 

158635 

158715 

158726 

158975 

159003 

159138 

159229 

159570 

160180 

160840 

161070 

161887 

161898 

162222 

162415 

162459 

163474 

163929 

163985 

165141 

165505 

165516 

165538 

166519 

167261 

167512 

167830 

167910 

167943 

168377 

168504 

168935 

169290 

170059 

171063 

172055 

172088 

172351 

172691 

172737 

172793 

173014 

173296 

173310 

173343 

173489 

173649 

173876 

174131 

174313 

174324 

174368 

174722 

175032 

176091 

176875 

176911 

176922 

177969 

178097 

178495 

178508 

179090 

179329 

190762 

211871 

230967 

232532 

234798 

234914 

236807 

237684 

238085 

240983 

242207 

242901 

243313 

243799 

244009 

244941 

246469 

247495 

249297 

250023 

250089 

251491 

252187 

254003 

255471 

255686 

256872 

257002 

257455 

260561 

261348 

262874 

262932 

264472 

267391 

268576 

269626 

270565 

274067 

274498 

274943 

275219 

275253 

275468 

275651 

276825 

276836 

277102 

277293 

278627 

278638 

279084 

279573

By CAS Registry Number

50-07-7 

50-29-3 

50-55-5 

51-79-6 

56-04-2 

56-49-5 

56-53-1 

62-44-2 

62-50-0 

70-25-7 

70-30-4 

75-88-7 

76-01-7 

85-22-3 

87-63-8 

92-66-0 

92-86-4 

92-87-5 

94-04-2 

95-69-2 

95-94-3 

99-35-4 

101-55-3 

107-04-0 

109-86-4 

110-49-6 

110-80-5 

111-15-9 

123-54-6 

123-63-7 

126-72-7 

306-83-2 

307-35-7 

307-51-7 

335-24-0 

335-71-7 

335-77-3 

335-97-7 

353-50-4 

354-21-2 

354-25-6 

355-03-3 

355-46-4 

372-39-4 

375-03-1 

375-81-5 

375-92-8 

376-14-7 

383-07-3 

423-50-7 

423-82-5 

423-86-9 

428-59-1 

460-70-8 

460-92-4 

531-85-1 

573-58-0 

591-78-6 

608-93-5 

615-53-2 

622-86-6 

680-31-9 

690-27-7 

693-38-9 

693-57-2 

773-14-8 

811-97-2 

930-55-2 

931-35-1 

1116-54-7 

1129-42-6 

1187-03-7 
Appendix C Chemical Substances that are the Subject of certain TSCA Actions 

Table C-1 (Continued) 

C-4

1489-69-6 

1511-62-2 

1649-08-7 

1652-63-7 

1660-95-3 

1690-76-2 

1691-99-2 

1705-60-8 

1737-93-5 

1763-23-1 

1869-77-8 

1888-71-7 

1893-52-3 

1937-37-7 

2052-07-5 

2113-57-7 

2250-98-8 

2263-09-4 

2302-97-8 

2368-80-1 

2417-04-1 

2429-73-4 

2429-79-0 

2429-81-4 

2429-82-5 

2429-83-6 

2429-84-7 

2432-99-7 

2479-46-1 

2586-58-5 

2602-46-2 

2615-25-0 

2682-20-4 

2706-91-4 

2716-10-1 

2716-12-3 

2795-39-3 

2840-00-8 

2893-80-3 

2965-52-8 

2991-50-6 

2991-51-7 

2991-52-8 

3052-70-8 

3083-25-8 

3089-19-8 

3107-18-4 

3132-64-7 

3165-93-3 

3377-92-2 

3389-71-7 

3397-65-7 

3530-19-6 

3567-65-5 

3626-28-6 

3811-71-0 

3820-83-5 

3871-50-9 

3871-99-6 

3872-25-1 

3984-22-3 

4151-50-2 

4161-22-2 

4335-09-5 

4694-91-1 

5117-12-4 

5397-03-5 

5958-25-8 

6196-98-1 

6304-39-8 

6358-80-1 

6360-29-8 

6360-54-9 

6752-33-6 

7345-69-9 

7439-97-6 

7446-14-2 

7758-97-6 

7789-99-3 

8014-91-3 

8068-03-9 

10190-55-3 

10192-46-8 

12027-96-2 

12031-65-1 

12036-37-2 

12056-51-8 

12057-17-9 

12141-67-2 

12175-02-9 

12656-57-4 

12656-85-8 

13417-01-1 

13439-89-9 

13654-09-6 

14650-24-9 

14720-55-9 

15827-56-2 

16068-37-4 

16071-86-6 

16079-88-2 

16096-31-4 

16298-38-7 

17202-41-4 

19019-43-3 

19201-36-6 

19372-44-2 

19721-22-3 

21055-88-9 

21160-95-2 

21807-69-2 

22094-81-1 

22094-83-3 

22094-85-5 

22576-65-4 

23153-23-3 

24307-26-4 

24448-09-7 

24924-36-5 

25245-34-5 

25268-77-3 

25608-40-6 

26172-55-4 

26694-69-9 

27603-25-4 

27610-48-6 

27753-52-2 

27858-07-7 

27936-88-5 

28554-31-6 

29081-56-9 

29091-20-1 

29117-08-6 

29457-72-5 

30025-38-8 

30381-98-7 

30486-37-4 

30813-81-1 

31506-32-8 

31775-16-3 

32315-10-9 

32534-81-9 

32536-52-0 

32539-16-5 

34415-31-1 

34455-03-3 

34621-99-3 

35544-45-7 

36177-92-1 

36355-01-8 

36483-60-0 

38006-74-5 

38850-52-1 

38850-58-7 

38850-60-1 

39142-28-4 

40088-47-9 

41088-52-2 

41240-76-0 

43048-08-4 

50598-28-2 

50598-29-3 

50622-20-3 

51032-47-4 

51160-97-5 

51851-37-7 

51868-46-3 

52032-20-9 

52166-82-2 

52495-71-3 

52550-45-5 

54423-67-5 

55120-77-9 

56553-60-7 

55910-10-6 

56372-23-7 

56553-60-7 

56773-42-3 

56875-68-4 

57589-85-2 

58576-98-0 

58577-08-5 

58857-49-1 

58920-31-3 

59071-10-2 

59447-55-1 

59789-51-4 

60270-55-5 

60466-61-7 

60825-27-6 

61577-14-8 

61660-12-6 

62435-71-6 

63936-56-1 

64712-27-2 

64723-18-8 

65992-66-7 

66008-68-2 

66008-69-3 

66008-70-6 

67584-42-3 

67584-48-9 

67584-49-0 

67584-50-3 

67584-52-5 

67584-53-6 

67584-54-7 

67584-56-9 

67584-57-0 

67584-58-1 

67584-60-5 

67584-61-6 

67584-62-7 

67906-38-1 

67906-40-5 

67906-41-6 

67906-42-7 

67906-70-1 

67906-71-2 

67906-73-4 
Appendix C Chemical Substances that are the Subject of certain TSCA Actions 

Table C-1 (Continued) 

C-5

67906-74-5 

67923-61-9 

67939-36-0 

67939-37-1 

67939-42-8 

67939-61-1 

67939-87-1 

67939-88-2 

67939-90-6 

67939-92-8 

67939-93-9 

67939-94-0 

67939-96-2 

67939-97-3 

67939-98-4 

67940-02-7 

67969-69-1 

68081-83-4 

68084-62-8 

68156-00-3 

68156-01-4 

68156-06-9 

68156-07-0 

68227-87-2 

68227-94-1 

68227-96-3 

68227-97-4 

68227-98-5 

68227-99-6 

68228-00-2 

68239-72-5 

68239-73-6 

68239-74-7 

68239-75-8 

68259-06-3 

68259-07-4 

68259-08-5 

68259-09-6 

68259-12-1 

68259-14-3 

68259-15-4 

68259-38-1 

68259-39-2 

68298-06-6 

68298-08-8 

68298-09-9 

68298-10-2 

68298-11-3 

68298-13-5 

68298-60-2 

68298-62-4 

68298-78-2 

68298-80-6 

68298-81-7 

68298-89-5 

68299-20-7 

68299-21-8 

68299-29-6 

68299-39-6 

68310-02-1 

68310-17-8 

68310-75-8 

68318-34-3 

68318-36-5 

68329-56-6 

68391-09-3 

68541-01-5 

68541-02-6 

68541-80-0 

68555-69-1 

68555-70-4 

68555-71-5 

68555-72-6 

68555-73-7 

68555-74-8 

68555-75-9 

68555-76-0 

68555-78-2 

68555-79-3 

68555-81-7 

68555-90-8 

68555-91-9 

68555-92-0 

68568-77-4 

68586-14-1 

68608-13-9 

68608-14-0 

68649-26-3 

68797-76-2 

68815-72-5 

68867-60-7 

68867-62-9 

68877-32-7 

68891-96-3 

68891-97-4 

68891-98-5 

68891-99-6 

68909-15-9 

68928-80-3 

68957-31-3 

68957-32-4 

68957-53-9 

68957-54-0 

68057-55-1 

68957-57-3 

68957-58-4 

68957-60-8 

68957-61-9 

68957-62-0 

68957-63-1 

68958-60-1 

68958-61-2 

69938-76-7 

70225-14-8 

70225-15-9 

70225-16-0 

70225-17-1 

70225-20-6 

70225-24-0 

70225-26-2 

70248-52-1 

70776-36-2 

70900-40-2 

71463-74-6 

71463-78-0 

71463-79-1 

71463-80-4 

71463-81-5 

71487-20-2 

71526-07-3 

72785-08-1 

72804-49-0 

73018-93-6 

73019-19-9 

73019-20-2 

73019-28-0 

73038-33-2 

73275-59-9 

73772-32-4 

73772-33-5 

73772-34-6 

75405-06-0 

78245-94-0 

79710-86-4 

79771-08-7 

79771-09-8 

81190-38-7 

81711-69-5 

82799-44-8 

83048-65-1 

83748-27-0 

83748-28-1 

84268-08-6 

85029-61-4 

85137-09-3 

85586-67-0 

85712-26-1 

85712-27-2 

85736-97-6 

86917-58-0 

87676-07-1 

89610-32-2 

90884-29-0 

91081-99-1 

91144-26-2 

91788-83-9 

92484-07-6 

93072-06-1 

93589-69-6 

94133-90-1 

94148-67-1 

94213-53-3 

94317-64-3 

94933-05-8 

95590-48-0 

96152-42-0 

96478-09-0 

96549-95-0 

98999-57-6 

100545-50-4 

100912-15-0 

101646-62-2 

101646-63-3 

103490-06-8 

103490-08-0 

103580-64-9 

103697-96-7 

104503-68-6 

105362-40-1 

105658-30-8 

106008-93-9 

106008-94-0 

106359-91-5 

106790-31-2 

110726-28-8 

110843-97-5 

110843-98-6 

111109-77-4 

116671-32-0 

117397-31-6 

117806-54-9 

118716-61-3 

118716-62-4 

119438-11-8 

119462-56-5 

119535-63-6 

121144-97-6 

121255-03-6 

121776-57-6 

122035-71-6 

124993-63-1 

125630-94-6 

125904-10-1 

125904-11-2 

125997-20-8 

126213-50-1 

126505-35-9 

127133-66-8 

129733-59-1 

129813-71-4 
Appendix C Chemical Substances that are the Subject of certain TSCA Actions 

Table C-1 (Continued) 

C-6

130097-33-5 

130169-66-3 

130353-62-7 

130728-76-6 

132482-53-2 

132767-86-3 

133911-74-7 

134701-20-5 

134818-69-2 

135011-47-1 

136040-19-2 

136504-96-6 

137787-41-8 

137873-52-0 

138495-42-8 

138859-29-7 

141420-50-0 

142828-65-7 

144761-93-3 

145556-04-3 

147129-86-0 

147170-38-5 

147170-47-6 

147732-58-9 

147783-69-5 

148240-78-2 

148240-80-6 

148240-81-7 

148240-82-8 

148373-01-7 

148684-79-1 

149303-87-7 

149564-65-8 

151686-36-1 

151717-27-0 

152007-82-4 

153454-44-5 

153590-17-1 

153699-23-1 

155613-93-7 

156294-54-1 

157627-99-1 

157707-95-4 

159574-72-8 

160901-25-7 

163206-28-8 

163206-29-9 

163292-61-3 

163436-84-8 

163879-69-4 

163961-26-0 

163961-34-0 

164383-18-0 

166432-58-2 

167412-23-9 

168113-88-0 

168811-65-2 

170678-69-0 

174254-18-3 

174305-36-3 

174333-80-3 

178094-69-4 

178452-72-7 

178535-22-3 

179005-06-2 

180031-79-2 

180685-86-3 

180850-95-7 

181828-07-9 

182238-09-1 

182238-10-4 

182635-99-0 

183562-46-1 

184719-88-8 

184785-38-4 

186321-98-2 

189120-62-5 

189120-63-6 

189354-73-2 

190525-00-9 

192439-46-6 

192662-29-6 

192726-23-1 

193635-72-2 

195008-77-6 

196109-17-8 

197527-19-8 

199487-82-6 

201167-69-3 

202483-48-5 

203809-20-5 

204336-40-3 

204401-83-2 

205764-98-3 

206009-82-7 

208343-47-9 

208408-03-1 

210181-71-8 

220075-01-4 

221279-59-0 

222975-06-6 

235083-88-2 

235083-90-6 

238420-68-3 

249297-16-3 

251099-16-8 

258839-39-3 

259871-68-6 

290364-23-7 

290364-24-8 

297175-71-4 

300371-38-4 

306973-46-6 

306973-47-7 

306974-19-6 

306974-28-7 

306974-45-8 

306974-63-0 

306975-56-4 

306975-57-5 

306975-62-2 

306975-84-8 

306975-85-9 

306976-25-0 

306976-55-6 

306977-10-6 

306977-58-2 

306978-04-1 

306978-65-4 

306979-40-8 

306980-27-8 

327177-98-0 

329928-84-9 

333784-10-4 

364059-77-8 

391232-99-8 

474095-58-4 

595585-15-2 

Also, chemical substances which are nitrates of the alkali metals (Group 1A in the periodic classification of chemical 

elements) lithium, sodium, potassium, rubidium, cesium, and francium when used as an ingredient in metalworking 

fluids. (see 40 CFR 721.470) 
Appendix C Chemical Substances that are the Subject of certain TSCA Actions 

C-7

Table C-2. Chemicals which are the Subject of a Proposed or Final Test Rule (TSCA 

Section 4)

By CAS Registry Number 

57-10-3 

74-93-1 

74-95-3 

74-97-5 

75-05-8 

75-15-0 

75-35-4 

75-36-5 

77-73-6 

78-11-5 

78-33-1 

78-59-1 

78-87-5 

79-00-5 

79-20-9 

79-31-2 

79-46-9 

79-94-7 

79-95-8 

80-62-6 

84-65-1 

85-44-9 

87-10-5 

87-65-0 

91-20-3 

92-52-4 

95-48-7 

95-77-2 

95-80-7 

95-95-4 

98-29-3 

98-86-2 

99-28-5 

100-00-5 

100-01-6 

100-21-0 

100-41-4 

100-44-7 

101-90-6 

104-76-7 

106-42-3 

106-44-5 

106-46-7 

106-90-1 

106-92-3 

107-06-2 

107-13-1 

107-21-1 

107-31-3 

108-03-2 

108-10-1 

108-19-0 

108-31-6 

108-39-4 

108-60-1 

108-90-7 

108-93-0 

109-66-0 

109-99-9 

110-12-3 

110-44-1 

111-11-5 

111-42-2 

111-84-2 

112-52-7 

115-86-6 

118-75-2 

118-79-6 

118-82-1 

120-36-5 

120-80-9 

120-82-1 

120-83-2 

121-69-7 

122-39-4 

122-60-1 

123-30-8 

123-33-1 

123-42-2 

126-80-7 

126-99-8 

127-19-5 

128-39-2 

141-78-6 

142-82-5 

149-44-0 

150-76-5 

320-72-9 

409-02-9 

463-58-1 

556-52-5 

576-24-9 

576-26-1 

583-78-8 

594-42-3 

608-71-9 

608-93-5 

615-58-7 

624-83-9 

640-19-7 

930-37-0 

933-75-5 

1163-19-5 

1241-94-7 

1324-76-1 

1330-78-5 

1940-42-7 

2210-79-9 

2224-15-9 

2238-07-5 

2425-01-6 

2425-79-8 

2426-08-6 

2461-15-6 

2528-36-1 

2530-83-8 

2897-60-1 

2941-64-2 

3072-84-2 

3101-60-8 

3188-83-8 

3194-55-6 

3568-29-4 

3772-94-9 

4016-11-9 

4016-14-2 

4162-45-2 

5026-74-4 

5255-75-4 

5493-45-8 

7328-97-4 

7422-52-8 

7647-01-0 

7664-39-3 

7665-72-7 

7782-50-5 

8005-02-5 

13236-02-7 

13561-08-5 

14228-73-0 

16532-79-9 

17557-23-2 

17963-04-1 

20217-01-0 

21850-44-2 

22421-59-6 

25013-15-4 

25155-23-1 

25327-89-3 

26447-14-3 

26761-45-5 

27193-86-8 

28108-99-8 

29761-21-5 

32534-81-9 

32536-52-0 

32568-89-1 

34590-94-8 

35243-89-1 

37853-59-1 

37853-61-5 

38304-52-8 

54208-63-8 

56803-37-3 

60501-41-9 

61578-04-9 

65652-41-7 

65996-78-3 

68134-06-5 

68134-07-6 

68153-30-0 

68517-02-2 

68609-96-1 

68611-64-3 

68937-41-7 

68959-23-9 

68987-80-4 

69155-42-6 

71033-08-4 

71808-64-5 

72319-24-5 

74398-71-3 

75150-13-9 

85322-38-9 
Appendix C Chemical Substances that are the Subject of certain TSCA Actions 

C-8

Table C-3. Chemicals which are the Subject of a TSCA Section 5(e) Consent Order

By Accession Number

30309 

32178 

38585 

41259 

42741 

43313 

44292 

45002 

50567 

53862 

56236 

57397 

59531 

59622 

60787 

62283 

62625 

64621 

65328 

65599 

66387 

66503 

66616 

67993 

68101 

68474 

71546 

72414 

73484 

73542 

73906 

73939 

73995 

75015 

76972 

77511 

77668 

77759 

77873 

78581 

79164 

80376 

80912 

81426 

84801 

87560 

87968 

88472 

90212 

91680 

93835 

97008 

97291 

101601 

102057 

102966 

103378 

103798 

105090 

105578 

106720 

106877 

107450 

108260 

109525 

112233 

112380 

112766 

113236 

114024 

115981 

119585 

120208 

121621 

121972 

122395 

122704 

122908 

123116 

123296 

123401 

123785 

123898 

124540 

124595 

125792 

126002 

126615 

128155 

129169 

129750 

129829 

130291 

130428 

131103 

131125 

132651 

132811 

133336 

137361 

138499 

139674 

140502 

140591 

141072 

141323 

141925 

142086 

143310 

144402 

144797 

145165 

145563 

145643 

146453 

146588 

148084 

148164 

150595 

150711 

152386 

153174 

153232 

154473 

154688 

155750 

156424 

156526 

157825 

159003 

159650 

160044 

162222 

163474 

163929 

165141 

166597 

168162 

168504 

169290 

170059 

171358 

171596 

172691 

172737 

173296 

173310 

173343 

174324 

175032 

176364 

176853 

176922 

178495 

179090 

190762 

232918 

235152 

236501 

237026 

240212 

242467 

242956 

243313 

243335 

247826 

249720 

250476 

251333 

252290 

254456 

254489 

254978 

256214 

256236 

256634 

256645 

257922 

259360 

260721 

263526 

264949 

266218 

266865 

269820 

270565 

271739 

272721 

275651 

276314 

277339 

279744 

279755
Appendix C Chemical Substances that are the Subject of certain TSCA Actions 

Table C-3 (Continued) 

C-9

By CAS Registry Number

94-04-2 

359-07-9 

372-39-4 

622-86-6 

693-57-2 

1129-42-6 

1489-69-6 

1511-62-6 

1660-95-3 

1690-76-2 

1705-60-8 

1737-93-5 

2146-71-6 

2417-04-1 

2479-46-1 

2615-25-0 

2716-10-1 

2716-12-3 

2840-00-8 

3052-70-8 

3377-92-2 

3971-28-6 

3984-22-3 

4694-91-1 

5117-12-4 

5958-25-8 

6196-98-1 

6304-39-8 

6921-17-1 

7789-99-3 

12027-96-2 

12031-65-1 

12032-75-6 

12036-37-2 

12049-47-7 

12056-51-8 

12057-17-9 

12163-45-0 

12230-80-7 

12232-96-1 

12438-71-0 

15827-56-2 

16096-31-4 

18241-31-1 

18934-00-4 

19372-44-2 

19721-22-3 

19829-42-6 

20138-28-7 

20783-50-0 

21160-95-2 

21807-69-2 

27610-48-6 

28554-31-6 

29091-20-1 

30486-37-4 

30813-81-1 

31775-16-3 

32315-10-9 

34415-31-1 

34621-99-3 

39290-90-9 

39318-30-4 

51160-97-5 

52495-71-3 

54423-67-5 

59447-55-1 

59789-51-4 

60466-61-7 

60825-27-6 

62435-71-6 

65992-66-7 

66988-04-3 

69938-76-7 

71526-07-3 

73231-04-6 

75405-06-0 

77939-50-5 

77986-14-2 

78245-94-0 

78543-39-2 

84268-08-6 

85029-61-4 

85712-26-1 

85712-27-2 

86917-58-0 

87676-07-1 

90884-29-0 

92044-87-6 

92484-07-6 

93589-69-6 

94054-35-0 

94317-64-3 

96478-09-0 

96549-95-0 

99636-32-5 

99742-80-0 

100402-91-3 

103490-06-8 

103490-08-0 

103697-96-7 

105658-30-8 

106790-31-2 

110843-97-5 

110843-98-6 

116671-32-0 

119438-11-8 

119914-24-8 

121144-97-6 

121255-03-6 

121776-57-6 

122035-71-6 

124756-59-8 

124993-63-1 

125904-10-1 

125904-11-2 

125997-20-8 

126505-35-9 

126682-74-4 

130169-66-3 

130353-62-7 

130728-76-6 

132299-20-8 

133911-74-7 

135011-47-1 

136504-96-6 

137622-07-2 

137622-08-3 

137873-52-0 

138859-29-7 

141420-50-0 

144761-93-3 

145556-04-3 

147732-58-9 

148124-41-8 

148124-42-9 

148373-01-7 

149303-87-7 

151686-36-1 

153454-44-5 

153699-23-1 

155613-93-7 

156294-54-1 

158948-13-1 

161717-32-4 

163206-29-9 

163206-32-4 

163292-64-6 

166432-57-1 

166514-73-4 

167412-23-9 

174974-45-9 

175205-96-6 

177528-09-5 

180071-71-0 

181828-07-9 

182238-10-4 

182970-05-4 

189120-62-5 

189120-63-6 

192726-23-1 

193635-72-2 

195888-92-7 

196521-82-1 

200443-94-3 

201167-69-3 

206886-68-2 

211389-36-5 

211578-04-0 

211578-08-4 

212335-59-6 

212335-62-1 

215856-72-7 

216583-60-7 

216583-66-3 

216583-91-4 

216583-94-7 

216583-95-8 

216593-48-5 

216593-49-6 

216593-54-3 

216593-55-4 

216977-01-4 

218163-12-3 

224646-44-0 

251553-55-6 

253685-23-3 

258839-39-3 
Appendix C Chemical Substances that are the Subject of certain TSCA Actions 

Table C-3 (Continued) 

C-10

329928-84-9 

332350-90-0 

332350-93-3 

350820-95-0 

352661-91-7 

359427-90-0 

392662-40-7 

406207-51-0 
Appendix C Chemical Substances that are the Subject of certain TSCA Actions 

C-11

Table C-4. Chemicals which are the Subject of a TSCA Section 5(f) Order

By Accession Number

62705 

 

By CAS Registry Number

85204-21-3 
Appendix C Chemical Substances that are the Subject of certain TSCA Actions 

C-12

Table C-5. Chemical Substances which are the Subject of a Proposed or Final TSCA 

Section 6 Rule

 

By Accession Number

62705

 

By CAS Registry Number

1332-21-4 

1333-82-0 

1336-36-3 

7738-94-5 

7775-11-3 

7778-50-9 

7789-00-6 

10588-01-9 

11103-86-9 

13530-65-9 

13530-68-2 

14018-95-2 

85204-21-3

Also hexavalent chromium-based water treatment chemicals used in cooling systems; 

examples include: sodium dichromate (CAS No. 10588-01-9), chromic acid (CAS No. 7738-94-

5), chromium trioxide (CAS No. 1333-83-0), dichromic acid (CAS No. 13530-68-2), potassium 

chromate (CAS No. 7789-00-6), sodium chromate (CAS No. 7775-11-3), zinc chromate (CAS 

No. 13530-65-9), zinc chromate hydroxide (CAS No. 153936-94-6), zinc dichromate (CAS No. 

14018-95-2), and zinc potassium chromate (CAS No. 11103-86-9). 

Also asbestos, the asbestiform varieties of chrysotile (serpentine); crocidolite 

(riebeckite); amosite (cummingtonite-grunerite; tremolite; anthophylite; and actinolite. 

Also polychlorinated biphenyls collectively given the CAS No. 1336-36-3 and which 

include any chemical substance containing the biphenyl molecule that has been chlorinated to 

varying degrees or any combination of substances which may contain such substances. 
Appendix D Partially Exempt Chemicals 

D-1

Appendix D 

Chemicals Partially Exempt from Reporting in 2006

 Chemical substances that are partially exempt from reporting requirements under the IUR 

regulation in 2006 are listed in 40 CFR 710.46(b)(1) and 710.46(b)(2); these lists are copied 

below. Note that inorganic chemicals are also partially exempt from reporting requirements in 

2006 although they are not listed in this appendix (40 CFR 710.46(b)(3)). 

 IMPORTANT: This document is intended to be an information resource. While EPA has 

tried to provide an accurate list of chemicals, the list may contain errors and omissions. This list 

should not be relied upon in lieu of the Code of Federal Regulations. In the event of a conflict 

between this list and the Code of Federal Regulations, this list will not be considered controlling. 

Partially Exempt Chemicals Termed “Petroleum Process Streams” Under §710.46(b)(1)

CAS No. Product

7732–18–5 Water 

8002–05–9 Petroleum 

8002–74–2 Paraffin waxes and hydrocarbon waxes 

8006–20–0 Fuel gases, low and medium B.T.U. 

8008–20–6 Kerosine (petroleum) 

8009–03–8 Petrolatum 

8012–95–1 Paraffin oils 

8030–30–6 Naphtha 

8032–32–4 Ligroine 

8042–47–5 White mineral oil (petroleum) 

8052–41–3 Stoddard solvent 

8052–42–4 Asphalt 

61789-60-4 Pitch 

63231–60–7 Paraffin waxes and hydrocarbon waxes, microcryst. 

64741–41–9 Naphtha (petroleum), heavy straight-run 

64741–42–0 Naphtha (petroleum), full-range straight-run 

64741–43–1 Gas oils (petroleum), straight-run 

64741–44–2 Distillates (petroleum), straight-run middle 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-2

CAS No. Product

64741–45–3 Residues (petroleum), atm. Tower 

64741–46–4 Naphtha (petroleum), light straight-run 

64741–47–5 Natural gas condensates (petroleum) 

64741–49–7 Condensates (petroleum), vacuum tower 

64741–50–0 Distillates (petroleum), light paraffinic 

64741–51–1 Distillates (petroleum), heavy paraffinic 

64741–52–2 Distillates (petroleum), light naphthenic 

64741–53–3 Distillates (petroleum), heavy naphthenic 

64741–54–4 Naphtha (petroleum), heavy catalytic cracked 

64741–55–5 Naphtha (petroleum), light catalytic cracked 

64741–56–6 Residues (petroleum), vacuum 

64741–57–7 Gas oils (petroleum), heavy vacuum 

64741–58–8 Gas oils (petroleum), light vacuum 

64741–59–9 Distillates (petroleum), light catalytic cracked 

64741–60–2 Distillates (petroleum), intermediate catalytic cracked 

64741–61–3 Distillates (petroleum), heavy catalytic cracked 

64741–62–4 Clarified oils (petroleum), catalytic cracked 

64741–63–5 Naphtha (petroleum), light catalytic reformed 

64741–64–6 Naphtha (petroleum), full-range alkylate 

64741–65–7 Naphtha (petroleum), heavy alkylate 

64741–66–8 Naphtha (petroleum), light alkylate 

64741–67–9 Residues (petroleum), catalytic reformer fractionator 

64741–68–0 Naphtha (petroleum), heavy catalytic reformed 

64741–69–1 Naphtha (petroleum), light hydrocracked 

64741–70–4 Naphtha (petroleum), isomerization 

64741–73–7 Distillates (petroleum), alkylate 

64741–74–8 Naphtha (petroleum), light thermal cracked 

64741–75–9 Residues (petroleum), hydrocracked 

64741–76–0 Distillates (petroleum), heavy hydrocracked 

64741–77–1 Distillates (petroleum), light hydrocracked 

64741–78–2 Naphtha (petroleum), heavy hydrocracked 

64741–79–3 Coke (petroleum) 

64741–80–6 Residues (petroleum), thermal cracked 

64741–81–7 Distillates (petroleum), heavy thermal cracked 

64741–82–8 Distillates (petroleum), light thermal cracked 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-3

CAS No. Product

64741–83–9 Naphtha (petroleum), heavy thermal cracked 

64741–84–0 Naphtha (petroleum), solvent-refined light 

64741–85–1 Raffinates (petroleum), sorption process 

64741–86–2 Distillates (petroleum), sweetened middle 

64741–87–3 Naphtha (petroleum), sweetened 

64741–88–4 Distillates (petroleum), solvent-refined heavy paraffinic 

64741–89–5 Distillates (petroleum), solvent-refined light paraffinic 

64741–90–8 Gas oils (petroleum), solvent-refined 

64741–91–9 Distillates (petroleum), solvent-refined middle 

64741–92–0 Naphtha (petroleum), solvent-refined heavy 

64741–95–3 Residual oils (petroleum), solvent deasphalted 

64741–96–4 Distillates (petroleum), solvent-refined heavy naphthenic 

64741–97–5 Distillates (petroleum), solvent-refined light naphthenic 

64741–98–6 Extracts (petroleum), heavy naphtha solvent 

64741–99–7 Extracts (petroleum), light naphtha solvent 

64742–01–4 Residual oils (petroleum), solvent-refined 

64742–03–6 Extracts (petroleum), light naphthenic distillate solvent 

64742–04–7 Extracts (petroleum), heavy paraffinic distillate solvent 

64742–05–8 Extracts (petroleum), light paraffinic distillate solvent 

64742–06–9 Extracts (petroleum), middle distillate solvent 

64742–07–0 Raffinates (petroleum), residual oil decarbonization 

64742–08–1 Raffinates (petroleum), heavy naphthenic distillate decarbonization 

64742–09–2 Raffinates (petroleum), heavy paraffinic distillate decarbonization 

64742–10–5 Extracts (petroleum), residual oil solvent 

64742–11–6 Extracts (petroleum), heavy naphthenic distillate solvent 

64742–12–7 Gas oils (petroleum), acid-treated 

64742–13–8 Distillates (petroleum), acid-treated middle 

64742–14–9 Distillates (petroleum), acid-treated light 

64742–15–0 Naphtha (petroleum), acid-treated 

64742–16–1 Petroleum resins 

64742–18–3 Distillates (petroleum), acid-treated heavy naphthenic 

64742–19–4 Distillates (petroleum), acid-treated light naphthenic 

64742–20–7 Distillates (petroleum), acid-treated heavy paraffinic 

64742–21–8 Distillates (petroleum), acid-treated light paraffinic 

64742–22–9 Naphtha (petroleum), chemically neutralized heavy 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-4

CAS No. Product

64742–23–0 Naphtha (petroleum), chemically neutralized light 

64742–24–1 Sludges (petroleum), acid 

64742–25–2 Lubricating oils (petroleum), acid-treated spent 

64742–26–3 Hydrocarbon waxes (petroleum), acid-treated 

64742–27–4 Distillates (petroleum), chemically neutralized heavy paraffinic 

64742–28–5 Distillates (petroleum), chemically neutralized light paraffinic 

64742–29–6 Gas oils (petroleum), chemically neutralized 

64742–30–9 Distillates (petroleum), chemically neutralized middle 

64742–31–0 Distillates (petroleum), chemically neutralized light 

64742–32–1 Lubricating oils (petroleum), chemically neutralized spent 

64742–33–2 Hydrocarbon waxes (petroleum), chemically neutralized 

64742–34–3 Distillates (petroleum), chemically neutralized heavy naphthenic 

64742–35–4 Distillates (petroleum), chemically neutralized light naphthenic 

64742–36–5 Distillates (petroleum), clay-treated heavy paraffinic 

64742–37–6 Distillates (petroleum), clay-treated light paraffinic 

64742–38–7 Distillates (petroleum), clay-treated middle 

64742–39–8 Neutralizing agents (petroleum), spent sodium carbonate 

64742–40–1 Neutralizing agents (petroleum), spent sodium hydroxide 

64742–41–2 Residual oils (petroleum), clay-treated 

64742–42–3 Hydrocarbon waxes (petroleum), clay-treated microcryst. 

64742–43–4 Paraffin waxes (petroleum), clay-treated 

64742–44–5 Distillates (petroleum), clay-treated heavy naphthenic 

64742–45–6 Distillates (petroleum), clay-treated light naphthenic 

64742–46–7 Distillates (petroleum), hydrotreated middle 

64742–47–8 Distillates (petroleum), hydrotreated light 

64742–48–9 Naphtha (petroleum), hydrotreated heavy 

64742–49–0 Naphtha (petroleum), hydrotreated light 

64742–50–3 Lubricating oils (petroleum), clay-treated spent 

64742–51–4 Paraffin waxes (petroleum), hydrotreated 

64742–52–5 Distillates (petroleum), hydrotreated heavy naphthenic 

64742–53–6 Distillates (petroleum), hydrotreated light naphthenic 

64742–54–7 Distillates (petroleum), hydrotreated heavy paraffinic 

64742–55–8 Distillates (petroleum), hydrotreated light paraffinic 

64742–56–9 Distillates (petroleum), solvent-dewaxed light paraffinic 

64742–57–0 Residual oils (petroleum), hydrotreated 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-5

CAS No. Product

64742–58–1 Lubricating oils (petroleum), hydrotreated spent 

64742–59–2 Gas oils (petroleum), hydrotreated vacuum 

64742–60–5 Hydrocarbon waxes (petroleum), hydrotreated microcryst. 

64742–61–6 Slack wax (petroleum) 

64742–62–7 Residual oils (petroleum), solvent-dewaxed 

64742–63–8 Distillates (petroleum), solvent-dewaxed heavy naphthenic 

64742–64–9 Distillates (petroleum), solvent-dewaxed light naphthenic 

64742–65–0 Distillates (petroleum), solvent-dewaxed heavy paraffinic 

64742–67–2 Foots oil (petroleum) 

64742–68–3 Naphthenic oils (petroleum), catalytic dewaxed heavy 

64742–69–4 Naphthenic oils (petroleum), catalytic dewaxed light 

64742–70–7 Paraffin oils (petroleum), catalytic dewaxed heavy 

64742–71–8 Paraffin oils (petroleum), catalytic dewaxed light 

64742–72–9 Distillates (petroleum), catalytic dewaxed middle 

64742–73–0 Naphtha (petroleum), hydrodesulfurized light 

64742–75–2 Naphthenic oils (petroleum), complex dewaxed heavy 

64742–76–3 Naphthenic oils (petroleum), complex dewaxed light 

64742–78–5 Residues (petroleum), hydrodesulfurized atmospheric tower 

64742–79–6 Gas oils (petroleum), hydrodesulfurized 

64742–80–9 Distillates (petroleum), hydrodesulfurized middle 

64742–81–0 Kerosine (petroleum), hydrodesulfurized 

64742–82–1 Naphtha (petroleum), hydrodesulfurized heavy 

64742–83–2 Naphtha (petroleum), light steam-cracked 

64742–85–4 Residues (petroleum), hydrodesulfurized vacuum 

64742–86–5 Gas oils (petroleum), hydrodesulfurized heavy vacuum 

64742–87–6 Gas oils (petroleum), hydrodesulfurized light vacuum 

64742–88–7 Solvent naphtha (petroleum), medium aliph. 

64742–89–8 Solvent naphtha (petroleum), light aliph. 

64742–90–1 Residues (petroleum), steam-cracked 

64742–91–2 Distillates (petroleum), steam-cracked 

64742–92–3 Petroleum resins, oxidized 

64742–93–4 Asphalt, oxidized 

64742–94–5 Solvent naphtha (petroleum), heavy arom. 

64742–95–6 Solvent naphtha (petroleum), light arom. 

64742–96–7 Solvent naphtha (petroleum), heavy aliph. 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-6

CAS No. Product

64742–97–8 Distillates (petroleum), oxidized heavy 

64742–98–9 Distillates (petroleum), oxidized light 

64742–99–0 Residual oils (petroleum), oxidized 

64743–00–6 Hydrocarbon waxes (petroleum), oxidized 

64743–01–7 Petrolatum (petroleum), oxidized 

64743–02–8 Alkenes, C>10 .alpha.- 

64743–03–9 Phenols (petroleum) 

64743–04–0 Coke (petroleum), recovery 

64743–05–1 Coke (petroleum), calcined 

64743–06–2 Extracts (petroleum), gas oil solvent 

64743–07–3 Sludges (petroleum), chemically neutralized 

64754–89–8 Naphthenic acids (petroleum), crude 

64771–71–7 Paraffins (petroleum), normal C>10 

64771–72–8 Paraffins (petroleum), normal C5-20 

67254-74-4 Naphthenic oils 

67674–12–8 Residual oils (petroleum), oxidized, compounds with triethanolamine 

67674–13–9 Petrolatum (petroleum), oxidized, partially deacidified 

67674–15–1 Petrolatum (petroleum), oxidized, Me ester 

67674–16–2 Hydrocarbon waxes (petroleum), oxidized, partially deacidified 

67674–17–3 Distillates (petroleum), oxidized light, compounds with triethanolamine 

67674–18–4 Distillates (petroleum), oxidized light, Bu esters 

67891–79–6 Distillates (petroleum), heavy arom. 

67891–80–9 Distillates (petroleum), light arom. 

67891-81-0 Distillates (petroleum), oxidized light, potassium salts 

67891–82–1 Hydrocarbon waxes (petroleum), oxidized, compounds with ethanolamine 

67891–83–2 Hydrocarbon waxes (petroleum), oxidized, compounds with isopropanolamine 

67891–85–4 Hydrocarbon waxes (petroleum), oxidized, compounds with triisopropanolamine 

67891-86-5 Hydrocarbon waxes (petroleum), oxidized, compounds with diisopropanolamine 

68131–05–5 Hydrocarbon oils, process blends 

68131–49–7 Aromatic hydrocarbons, C6-10, acid-treated, neutralized 

68131–75–9 Gases (petroleum), C3-4 

68153–22–0 Paraffin waxes and Hydrocarbon waxes, oxidized 

68187–57–5 Pitch, coal tar-petroleum 

68187–58–6 Pitch, petroleum, arom. 

68187–60–0 Hydrocarbons, C4, ethane-propane-cracked 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-7

CAS No. Product

68307–98–2 Tail gas (petroleum), catalytic cracked distillate and catalytic cracked naphtha fractionation 

absorber 

68307–99–3 Tail gas (petroleum), catalytic polymn. naphtha fractionation stabilizer 

68308–00–9 Tail gas (petroleum), catalytic reformed naphtha fractionation stabilizer, hydrogen sulfide-free 

68308–01–0 Tail gas (petroleum), cracked distillate hydrotreater stripper 

68308–02–1 Tail gas (petroleum), distn., hydrogen sulfide-free 

68308–03–2 Tail gas (petroleum), gas oil catalytic cracking absorber 

68308–04–3 Tail gas (petroleum), gas recovery plant 

68308–05–4 Tail gas (petroleum), gas recovery plant deethanizer 

68308–06–5 Tail gas (petroleum), hydrodesulfurized distillate and hydrodesulfurized naphtha fractionator, 

acid-free 

68308–07–6 Tail gas (petroleum), hydrodesulfurized vacuum gas oil stripper, hydrogen sulfide-free 

68308–08–7 Tail gas (petroleum), isomerized naphtha fractionation stabilizer 

68308–09–8 Tail gas (petroleum), light straight-run naphtha stabilizer, hydrogen sulfide-free 

68308–10–1 Tail gas (petroleum), straight-run distillate hydrodesulfurizer, hydrogen sulfide-free 

68308–11–2 Tail gas (petroleum), propane-propylene alkylation feed prep deethanizer 

68308–12–3 Tail gas (petroleum), vacuum gas oil hydrodesulfurizer, hydrogen sulfide-free 

68308–27–0 Fuel gases, refinery 

68333–22–2 Residues (petroleum), atmospheric 

68333–23–3 Naphtha (petroleum), heavy coker 

68333–24–4 Hydrocarbon waxes (petroleum), oxidized, compds. with triethanolamine 

68333–25–5 Distillates (petroleum), hydrodesulfurized light catalytic cracked 

68333–26–6 Clarified oils (petroleum), hydrodesulfurized catalytic cracked 

68333–27–7 Distillates (petroleum), hydrodesulfurized intermediate catalytic cracked 

68333–28–8 Distillates (petroleum), hydrodesulfurized heavy catalytic cracked 

68333–29–9 Residues (petroleum), light naphtha solvent extracts 

68333–30–2 Distillates (petroleum), oxidized heavy thermal cracked 

68333–81–3 Alkanes, C4-12 

68333–88–0 Aromatic hydrocarbons, C9-17 

68334–30–5 Fuels, diesel 

68409–99–4 Gases (petroleum), catalytic cracked overheads 

68410–00–4 Distillates (petroleum), crude oil 

68410–05–9 Distillates (petroleum), straight-run light 

68410–12–8 Distillates (petroleum), steam-cracked, C5-10 fraction, high-temp. stripping products with light 

steamcracked petroleum naphtha C5 fraction polymers 

68410–71–9 Raffinates (petroleum), catalytic reformer ethylene glycol-water countercurrent exts. 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-8

CAS No. Product

68410–96–8 Distillates (petroleum), hydrotreated middle, intermediate boiling 

68410–97–9 Distillates (petroleum), light distillate hydrotreating process, low-boiling 

68410–98–0 Distillates (petroleum), hydrotreated heavy naphtha, deisohexanizer overheads 

68411–00–7 Alkenes, C>8 

68425–29–6 Distillates (petroleum), naphtha-raffinate pyrolyzate-derived, gasoline-blending 

68425–33–2 Petrolatum (petroleum), oxidized, barium salt 

68425–34–3 Petrolatum (petroleum), oxidized, calcium salt 

68425–35–4 Raffinates (petroleum), reformer, Lurgi unit-sepd. 

68425–39–8 Alkenes, C>10 .alpha.-, oxidized 

68441–09–8 Hydrocarbon waxes (petroleum), clay-treated microcryst., contg. polyethylene, oxidized 

68459–78–9 Alkenes, C18-24 .alpha.-, dimers 

68475–57–0 Alkanes, C1-2 

68475–58–1 Alkanes, C2-3 

68475–59–2 Alkanes, C3-4 

68475–60–5 Alkanes, C4-5 

68475–61–6 Alkenes, C5, naphtha-raffinate pyrolyzate-derived 

68475–70–7 Aromatic hydrocarbons, C6-8, naphtha-raffinate pyrolyzate-derived 

68475–79–6 Distillates (petroleum), catalytic reformed depentanizer 

68475–80–9 Distillates (petroleum), light steam-cracked naphtha 

68476–26–6 Fuel gases 

68476-27-7 Fuel gases, amine system residues 

68476–28–8 Fuel gases, C6-8 catalytic reformer 

68476–29–9 Fuel gases, crude oil distillates 

68476–30–2 Fuel oil, no. 2 

68476–31–3 Fuel oil, no. 4 

68476–32–4 Fuel oil, residues-straight-run gas oils, high-sulfur 

68476–33–5 Fuel oil, residual 

68476–34–6 Fuels, diesel, no. 2 

68476–39–1 Hydrocarbons, aliph.-arom.-C4-5-olefinic 

68476–40–4 Hydrocarbons, C3-4 

68476–42–6 Hydrocarbons, C4-5 

68476–43–7 Hydrocarbons, C4-6, C5-rich 

68476–44–8 Hydrocarbons, C>3 

68476–45–9 Hydrocarbons, C5-10 arom. conc., ethylene-manuf.-by-product 

68476–46–0 Hydrocarbons, C3-11, catalytic cracker distillates 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-9

CAS No. Product

68476–47–1 Hydrocarbons, C2-6, C6-8 catalytic reformer 

68476–49–3 Hydrocarbons, C2-4, C3-rich 

68476–50–6 Hydrocarbons, C>5, C5-6-rich 

68476–52–8 Hydrocarbons, C4, ethylene-manuf.-by-product 

68476–53–9 Hydrocarbons, C>20, petroleum wastes 

68476–54–0 Hydrocarbons, C3-5, polymn. unit feed 

68476–55–1 Hydrocarbons, C5-rich 

68476–56–2 Hydrocarbons, cyclic C5 and C6 

68476–77–7 Lubricating oils, refined used 

68476–81–3 Paraffin waxes and Hydrocarbon waxes, oxidized, calcium salts 

68476–84–6 Petroleum products, gases, inorg. 

68476–85–7 Petroleum gases, liquefied 

68476–86–8 Petroleum gases, liquefied, sweetened 

68477–25–8 Waste gases, vent gas, C1-6 

68477–26–9 Wastes, petroleum 

68477–29–2 Distillates (petroleum), catalytic reformer fractionator residue, high-boiling 

68477–30–5 Distillates (petroleum), catalytic reformer fractionator residue, intermediate-boiling 

68477–31–6 Distillates (petroleum), catalytic reformer fractionator residue, low-boiling 

68477–33–8 Gases (petroleum), C3-4, isobutane-rich 

68477–34–9 Distillates (petroleum), C3-5, 2-methyl-2-butene-rich 

68477–35–0 Distillates (petroleum), C3-6, piperylene-rich 

68477–36–1 Distillates (petroleum), cracked steam-cracked, C5-18 fraction 

68477–38–3 Distillates (petroleum), cracked steam-cracked petroleum distillates 

68477–39–4 Distillates (petroleum), cracked stripped steam-cracked petroleum distillates, C8-10 fraction 

68477–40–7 Distillates (petroleum), cracked stripped steam-cracked petroleum distillates, C10-12 fraction 

68477–41–8 Gases (petroleum), extractive, C3-5, butadiene-butene-rich 

68477–42–9 Gases (petroleum), extractive, C3-5, butene-isobutylene-rich 

68477–44–1 Distillates (petroleum), heavy naphthenic, mixed with steam-cracked petroleum distillates C5-12 

fraction 

68477–47–4 Distillates (petroleum), mixed heavy olefin vacuum, heart-cut 

68477–48–5 Distillates (petroleum), mixed heavy olefin vacuum, low-boiling 

68477–53–2 Distillates (petroleum), steam-cracked, C5-12 fraction 

68477–54–3 Distillates (petroleum), steam-cracked, C8-12 fraction 

68477–55–4 Distillates (petroleum), steam-cracked, C5-10 fraction, mixed with light steam-cracked petroleum 

naphtha C5 fraction 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-10

CAS No. Product

68477–58–7 Distillates (petroleum), steam-cracked petroleum distillates, C5-18 fraction 

68477–59–8 Distillates (petroleum), steam-cracked petroleum distillates cyclopentadiene conc. 

68477–60–1 Extracts (petroleum), cold-acid 

68477–61–2 Extracts (petroleum), cold-acid, C4-6 

68477–62–3 Extracts (petroleum), cold-acid, C3-5, butene-rich 

68477–63–4 Extracts (petroleum), reformer recycle 

68477–64–5 Gases (petroleum), acetylene manuf. off 

68477–65–6 Gases (petroleum), amine system feed 

68477–66–7 Gases (petroleum), benzene unit hydrodesulfurizer off 

68477–67–8 Gases (petroleum), benzene unit recycle, hydrogen-rich 

68477–68–9 Gases (petroleum), blend oil, hydrogen-nitrogen-rich 

68477–69–0 Gases (petroleum), butane splitter overheads 

68477–70–3 Gases (petroleum), C2-3 

68477–71–4 Gases (petroleum), catalytic-cracked gas oil depropanizer bottoms, C4-rich acid-free 

68477–72–5 Gases (petroleum), catalytic-cracked naphtha debutanizer bottoms, C3-5-rich 

68477–73–6 Gases (petroleum), catalytic cracked naphtha depropanizer overhead, C3-rich acid-free 

68477–74–7 Gases (petroleum), catalytic cracker 

68477–75–8 Gases (petroleum), catalytic cracker, C1-5-rich 

68477–76–9 Gases (petroleum), catalytic polymd. naphtha stabilizer overhead, C2-4-rich 

68477–77–0 Gases (petroleum), catalytic reformed naphtha stripper overheads 

68477–79–2 Gases (petroleum), catalytic reformer, C1-4-rich 

68477–80–5 Gases (petroleum), C6-8 catalytic reformer recycle 

68477–81–6 Gases (petroleum), C6-8 catalytic reformer 

68477–82–7 Gases (petroleum), C6-8 catalytic reformer recycle, hydrogen-rich 

68477–83–8 Gases (petroleum), C3-5 olefinic-paraffinic alkylation feed 

68477–84–9 Gases (petroleum), C2-return stream 

68477–85–0 Gases (petroleum), C4-rich 

68477–86–1 Gases (petroleum), deethanizer overheads 

68477–87–2 Gases (petroleum), deisobutanizer tower overheads 

68477–88–3 Gases (petroleum), deethanizer overheads, C3-rich 

68477–89–4 Distillates (petroleum), depentanizer overheads 

68477–90–7 Gases (petroleum), depropanizer dry, propene-rich 

68477–91–8 Gases (petroleum), depropanizer overheads 

68477–92–9 Gases (petroleum), dry sour, gas-concn.-unit-off 

68477–93–0 Gases (petroleum), gas concn. reabsorber distn. 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-11

CAS No. Product

68477–94–1 Gases (petroleum), gas recovery plant depropanizer overheads 

68477–95–2 Gases (petroleum), Girbatol unit feed 

68477–96–3 Gases (petroleum), hydrogen absorber off 

68477–97–4 Gases (petroleum), hydrogen-rich 

68477–98–5 Gases (petroleum), hydrotreater blend oil recycle, hydrogen-nitrogen rich 

68477–99–6 Gases (petroleum), isomerized naphtha fractionater, C4-rich, hydrogen sulfide-free 

68478–00–2 Gases (petroleum), recycle, hydrogen-rich 

68478–01–3 Gases (petroleum), reformer make-up, hydrogen-rich 

68478–02–4 Gases (petroleum), reforming hydrotreater 

68478–03–5 Gases (petroleum), reforming hydrotreater, hydrogen-methane-rich 

68478–04–6 Gases (petroleum), reforming hydrotreater make-up, hydrogen-rich 

68478–05–7 Gases (petroleum), thermal cracking distn. 

68478–08–0 Naphtha (petroleum), light steam-cracked, C5-fraction, oligomer conc. 

68478–10–4 Naphtha (petroleum), light steam-cracked, debenzenized, C8-16-cycloalkadiene conc. 

68478–12–6 Residues (petroleum), butane splitter bottoms 

68478–13–7 Residues (petroleum), catalytic reformer fractionator residue distn. 

68478–15–9 Residues (petroleum), C6-8 catalytic reformer 

68478–16–0 Residual oils (petroleum), deisobutanizer tower 

68478–17–1 Residues (petroleum), heavy coker gas oil and vacuum gas oil 

68478–18–2 Residues (petroleum), heavy olefin vacuum 

68478–19–3 Residual oils (petroleum), propene purifn. splitter 

68478–20–6 Residues (petroleum), steam-cracked petroleum distillates cyclopentadiene conc., C4-

cyclopentadienefree 

68478–22–8 Tail gas (petroleum), catalytic cracked naphtha stabilization absorber 

68478–24–0 Tail gas (petroleum), catalytic cracker, catalytic reformer and hydrodesulfurizer combined 

fractionater 

68478–25–1 Tail gas (petroleum), catalytic cracker refractionation absorber 

68478–26–2 Tail gas (petroleum), catalytic reformed naphtha fractionation stabilizer 

68478–27–3 Tail gas (petroleum), catalytic reformed naphtha separator 

68478–28–4 Tail gas (petroleum), catalytic reformed naphtha stabilizer 

68478–29–5 Tail gas (petroleum), cracked distillate hydrotreater separator 

68478–30–8 Tail gas (petroleum), hydrodesulfurized straight-run naphtha separator 

68478-31-9 Tail gas (petroleum), isomerized naphtha fractionates, hydrogen sulfide-free 

68478–32–0 Tail gas (petroleum), saturate gas plant mixed stream, C4-rich 

68478–33–1 Tail gas (petroleum), saturate gas recovery plant, C1-2-rich 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-12

CAS No. Product

68478–34–2 Tail gas (petroleum), vacuum residues thermal cracker 

68512–61–8 Residues (petroleum), heavy coker and light vacuum 

68512–62–9 Residues (petroleum), light vacuum 

68512–78–7 Solvent naphtha (petroleum), light arom., hydrotreated 

68512–91–4 Hydrocarbons, C3-4-rich, petroleum distillates 

68513–02–0 Naphtha (petroleum), full-range coker 

68513–03–1 Naphtha (petroleum), light catalytic reformed, aromatic-free 

68513–11–1 Fuel gases, hydrotreater fractionation, scrubbed 

68513–12–2 Fuel gases, saturate gas unit fractionater-absorber overheads 

68513–13–3 Fuel gases, thermal cracked catalytic cracking residue 

68513–14–4 Gases (petroleum), catalytic reformed straight-run naphtha stabilizer overheads 

68513–15–5 Gases (petroleum), full-range straight-run naphtha dehexanizer off 

68513–16–6 Gases (petroleum), hydrocracking depropanizer off, hydrocarbon-rich 

68513–17–7 Gases (petroleum), light straight-run naphtha stabilizer off 

68513–18–8 Gases (petroleum), reformer effluent high-pressure flash drum off 

68513–19–9 Gases (petroleum), reformer effluent low-pressure flash drum off 

68513–62–2 Disulfides, C5-12-alkyl 

68513–63–3 Distillates (petroleum), catalytic reformed straight-run naphtha overheads 

68513–65–5 Butane, branched and linear 

68513–66–6 Residues (petroleum), alkylation splitter, C4-rich 

68513–67–7 Residues (petroleum), cyclooctadiene bottoms 

68513–68–8 Residues (petroleum), deethanizer tower 

68513–69–9 Residues (petroleum), steam-cracked light 

68513–74–6 Waste gases, ethylene oxide absorber-reactor 

68514–15–8 Gasoline, vapor-recovery 

68514–29–4 Hydrocarbons, amylene feed debutanizer overheads nonextractable raffinates 

68514–31–8 Hydrocarbons, C1-4 

68514–32–9 Hydrocarbons, C10 and C12, olefin-rich 

68514–33–0 Hydrocarbons, C12 and C14, olefin-rich 

68514–34–1 Hydrocarbons, C9-14, ethylene-manuf.-by-product 

68514–35–2 Hydrocarbons, C14-30, olefin-rich 

68514–36–3 Hydrocarbons, C1-4, sweetened 

68514–37–4 Hydrocarbons, C4-5-unsatd. 

68514–38–5 Hydrocarbons, C4-10-unsatd. 

68514-39-6 Naphtha (petroleum), light steam-cracked, isoprene-rich 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-13

CAS No. Product

68514–79–4 Petroleum products, hydrofiner-powerformer reformates 

68515–25–3 Benzene, C1-9-alkyl derivs. 

68515–26–4 Benzene, di-C12-14-alkyl derivs. 

68515–27–5 Benzene, di-C10-14-alkyl derivs., fractionation overheads, heavy ends 

68515–28–6 Benzene, di-C10-14-alkyl derivs., fractionation overheads, light ends 

68515–29–7 Benzene, di-C10-14-alkyl derivs., fractionation overheads, middle cut 

68515–30–0 Benzene, mono-C20-48-alkyl derivs. 

68515–32–2 Benzene, mono-C12-14-alkyl derivs., fractionation bottoms 

68515–33–3 Benzene, mono-C10-12-alkyl derivs., fractionation bottoms, heavy ends 

68515–34–4 Benzene, mono-C12-14-alkyl derivs., fractionation bottoms, heavy ends 

68515–35–5 Benzene, mono-C10-12-alkyl derivs., fractionation bottoms, light ends 

68515–36–6 Benzene, mono-C12-14-alkyl derivs., fractionation bottoms, light ends 

68516–20–1 Naphtha (petroleum), steam-cracked middle arom. 

68526–52–3 Alkenes, C6 

68526–53–4 Alkenes, C6-8, C7-rich 

68526–54–5 Alkenes, C7-9, C8-rich 

68526–55–6 Alkenes, C8-10, C9-rich 

68526–56–7 Alkenes, C9-11, C10-rich 

68526–57–8 Alkenes, C10-12, C11-rich 

68526–58–9 Alkenes, C11-13, C12-rich 

68526–77–2 Aromatic hydrocarbons, ethane cracking scrubber effluent and flare drum 

68526–99–8 Alkenes, C6-9 .alpha.- 

68527–00–4 Alkenes, C8-9 .alpha.- 

68527–11–7 Alkenes, C5 

68527–13–9 Gases (petroleum), acid, ethanolamine scrubber 

68527–14–0 Gases (petroleum), methane-rich off 

68527–15–1 Gases (petroleum), oil refinery gas distn. off 

68527–16–2 Hydrocarbons, C1-3 

68527–18–4 Gas oils (petroleum), steam-cracked 

68527–19–5 Hydrocarbons, C1-4, debutanizer fraction 

68527–21–9 Naphtha (petroleum), clay-treated full-range straight-run 

68527–22–0 Naphtha (petroleum), clay-treated light straight-run 

68527–23–1 Naphtha (petroleum), light steam-cracked arom. 

68527–26–4 Naphtha (petroleum), light steam-cracked, debenzenized 

68527–27–5 Naphtha (petroleum), full-range alkylate, butane-contg. 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-14

CAS No. Product

68553–00–4 Fuel oil, no. 6 

68553–14–0 Hydrocarbons, C8-11 

68602–79–9 Distillates (petroleum), benzene unit hydrotreater dipentanizer overheads 

68602–81–3 Distillates, hydrocarbon resin prodn. higher boiling 

68602–82–4 Gases (petroleum), benzene unit hydrotreater depentenizer overheads 

68602–83–5 Gases (petroleum), C1-5, wet 

68602–84–6 Gases (petroleum), secondary absorber off, fluidized catalytic cracker overheads fractionater 

68602–96–0 Distillates (petroleum), oxidized light, strong acid components, compds. with diethanolamine 

68602–97–1 Distillates (petroleum), oxidized light, strong acid components, sodium salts 

68602–98–2 Distillates (petroleum), oxidized light, strong acid components 

68602–99–3 Distillates (petroleum), oxidized light, strong acid-free 

68603–00–9 Distillates (petroleum), thermal cracked naphtha and gas oil 

68603–01–0 Distillates (petroleum), thermal cracked naphtha and gas oil, C5-dimer-contg. 

68603–02–1 Distillates (petroleum), thermal cracked naphtha and gas oil, dimerized 

68603–03–2 Distillates (petroleum), thermal cracked naphtha and gas oil, extractive 

68603–08–7 Naphtha (petroleum), arom.-contg. 

68603–09–8 Hydrocarbon waxes (petroleum), oxidized, calcium salts 

68603–10–1 Hydrocarbon waxes (petroleum), oxidized, Me esters, barium salts 

68603–11–2 Hydrocarbon waxes (petroleum), oxidized, Me esters, calcium salts 

68603–12–3 Hydrocarbon waxes (petroleum), oxidized, Me esters, sodium salts 

68603–13–4 Petrolatum (petroleum), oxidized, ester with sorbitol 

68603–14–5 Residual oils (petroleum), oxidized, calcium salts 

68603–31–6 Alkenes, C10, tert-amylene concentrator by-product 

68603–32–7 Alkenes, C15-20 .alpha.-, isomerized 

68606–09–7 Fuel gases, expander off 

68606–10–0 Gasoline, pyrolysis, debutanizer bottoms 

68606–11–1 Gasoline, straight–run, topping-plant 

68606–24–6 Hydrocarbons, C4, butene concentrator by-product 

68606–25–7 Hydrocarbons, C2-4 

68606–26–8 Hydrocarbons, C3 

68606–27–9 Gases (petroleum), alkylation feed 

68606–28–0 Hydrocarbons, C5 and C10-aliph. and C6-8-arom. 

68606–31–5 Hydrocarbons, C3-5, butadiene purifn. by-product 

68606–34–8 Gases (petroleum), depropanizer bottoms fractionation off 

68606–36–0 Hydrocarbons, C5-unsatd. rich, isoprene purifn. by-product 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-15

CAS No. Product

68607–11–4 Petroleum products, refinery gases 

68607–30–7 Residues (petroleum), topping plant, low-sulfur 

68608–56–0 Waste gases, from carbon black manuf. 

68647-60–9 Hydrocarbons, C>4 

68647–61–0 Hydrocarbons, C4-5, tert-amylene concentrator by-product 

68647–62–1 Hydrocarbons, C4-5, butene concentrator by-product, sour 

68650–36–2 Aromatic hydrocarbons, C8, o-xylene-lean 

68650–37–3 Paraffin waxes (petroleum), oxidized, sodium salts 

68782–97–8 Distillates (petroleum), hydrofined lubricating-oil 

68782–98–9 Extracts (petroleum), clarified oil solvent, condensed-ring-arom.-contg. 

68782–99–0 Extracts (petroleum), heavy clarified oil solvent, condensed-ring-arom.-contg. 

68783–00–6 Extracts (petroleum), heavy naphthenic distillate solvent, arom. conc. 

68783–01–7 Extracts (petroleum), heavy naphthenic distillate solvent, paraffinic conc. 

68783–02–8 Extracts (petroleum), intermediate clarified oil solvent, condensed-ring-arom.-contg. 

68783–04–0 Extracts (petroleum), solvent-refined heavy paraffinic distillate solvent 

68783–05–1 Gases (petroleum), ammonia-hydrogen sulfide, water-satd. 

68783–06–2 Gases (petroleum), hydrocracking low-pressure separator 

68783–07–3 Gases (petroleum), refinery blend 

68783–08–4 Gas oils (petroleum), heavy atmospheric 

68783–09–5 Naphtha (petroleum), catalytic cracked light distd. 

68783–12–0 Naphtha (petroleum), unsweetened 

68783–13–1 Residues (petroleum), coker scrubber, condensed-ring-arom.-contg. 

68783–15–3 Alkenes, C6-7 .alpha.- 

68783–61–9 Fuel gases, refinery, sweetened 

68783–62–0 Fuel gases, refinery, unsweetened 

68783–64–2 Gases (petroleum), catalytic cracking 

68783–65–3 Gases (petroleum), C2-4, sweetened 

68783–66–4 Naphtha (petroleum), light, sweetened 

68814–47–1 Waste gases, refinery vent 

68814–67–5 Gases (petroleum), refinery 

68814–89–1 Extracts (petroleum), heavy paraffinic distillates, solvent-deasphalted 

68814–87–9 Distillates (petroleum), full-range straight-run middle 

68814–90–4 Gases (petroleum), platformer products separator off 

68814–91–5 Alkenes, C5-9 .alpha.- 

68855–57–2 Alkenes, C6-12 .alpha.- 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-16

CAS No. Product

68855–58–3 Alkenes, C10-16 .alpha.- 

68855–59–4 Alkenes, C14-18 .alpha.- 

68855–60–7 Alkenes, C14-20 .alpha.- 

68911–58–0 Gases (petroleum), hydrotreated sour kerosine depentanizer stabilizer off 

68911–59–1 Gases (petroleum), hydrotreated sour kerosine flash drum 

68915–96–8 Distillates (petroleum), heavy straight-run 

68915–97–9 Gas oils (petroleum), straight-run, high-boiling 

68918–69–4 Petrolatum (petroleum), oxidized, zinc salt 

68918–73–0 Residues (petroleum), clay-treating filter wash 

68918–93–4 Paraffin waxes and Hydrocarbon waxes, oxidized, alkali metal salts 

68918–98–9 Fuel gases, refinery, hydrogen sulfide-free 

68918–99–0 Gases (petroleum), crude oil fractionation off 

68919–00–6 Gases (petroleum), dehexanizer off 

68919–01–7 Gases (petroleum), distillate unifiner desulfurization stripper off 

68919–02–8 Gases (petroleum), fluidized catalytic cracker fractionation off 

68919–03–9 Gases (petroleum), fluidized catalytic cracker scrubbing secondary absorber off 

68919–04–0 Gases (petroleum), heavy distillate hydrotreater desulfurization stripper off 

68919–05–1 Gases (petroleum), light straight run gasoline fractionation stabilizer off 

68919–06–2 Gases (petroleum), naphtha unifiner desulfurization stripper off 

68919–07–3 Gases (petroleum), platformer stabilizer off, light ends fractionation 

68919–08–4 Gases (petroleum), preflash tower off, crude distn. 

68919–09–5 Gases (petroleum), straight-run naphtha catalytic reforming off 

68919–10–8 Gases (petroleum), straight-run stabilizer off 

68919–11–9 Gases (petroleum), tar stripper off 

68919–12–0 Gases (petroleum), unifiner stripper off 

68919–15–3 Hydrocarbons, C6-12, benzene-recovery 

68919-16-4 Hydrocarbons, catalytic alkylation, by-products, C3-6 

68919–17–5 Hydrocarbons, C12-20, catalytic alkylation by-products 

68919–19–7 Gases (petroleum), fluidized catalytic cracker splitter residues 

68919–20–0 Gases (petroleum), fluidized catalytic cracker splitter overheads 

68919–37–9 Naphtha (petroleum), full-range reformed 

68920–06–9 Hydrocarbons, C7-9 

68920–07–0 Hydrocarbons, C<10-linear 

68920–64–9 Disulfides, di-C1-2-alkyl 

68921–07–3 Distillates (petroleum), hydrotreated light catalytic cracked 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-17

CAS No. Product

68921–09–5 Distillates (petroleum), naphtha unifiner stripper 

68921–08–4 Distillates (petroleum), light straight-run gasoline fractionation stabilizer overheads 

68921–67–5 Hydrocarbons, ethylene-manuf.-by-product distn. residues 

68952–76–1 Gases (petroleum), catalytic cracked naphtha debutanizer 

68952–77–2 Tail gas (petroleum), catalytic cracked distillate and naphtha stabilizer 

68952–78–3 Tail gas (petroleum), catalytic hydrodesulfurized distillate fractionation stabilizer, hydrogen 

sulfide-free 

68952–79–4 Tail gas (petroleum), catalytic hydrodesulfurized naphtha separator 

68952–80–7 Tail gas (petroleum), straight-run naphtha hydrodesulfurizer 

68952–81–8 Tail gas (petroleum), thermal-cracked distillate, gas oil and naphtha absorber 

68952–82–9 Tail gas (petroleum), thermal cracked hydrocarbon fractionation stabilizer, petroleum coking 

68953–80–0 Benzene, mixed with toluene, dealkylation product 

68955–27–1 Distillates (petroleum), petroleum residues vacuum 

68955–28–2 Gases (petroleum), light steam-cracked, butadiene conc. 

68955–31–7 Gases (petroleum), butadiene process, inorg. 

68955–32–8 Natural gas, substitute, steam-reformed desulfurized naphtha 

68955–33–9 Gases (petroleum), sponge absorber off, fluidized catalytic cracker and gas oil desulfurizer 

overhead fractionation 

68955–34–0 Gases (petroleum), straight-run naphtha catalytic reformer stabilizer overhead 

68955–35–1 Naphtha (petroleum), catalytic reformed 

68955–36–2 Residues (petroleum), steam-cracked, resinous 

68955–76–0 Aromatic hydrocarbons, C9-16, biphenyl deriv.-rich 

68955–96–4 Disulfides, dialkyl and di-Ph, naphtha sweetening 

68956–47–8 Fuel oil, isoprene reject absorption 

68956–48–9 Fuel oil, residual, wastewater skimmings 

68956–52–5 Hydrocarbons, C4-8 

68956–54–7 Hydrocarbons, C4-unsatd. 

68956–55–8 Hydrocarbons, C5-unsatd. 

68956–70–7 Petroleum products, C5-12, reclaimed, wastewater treatment 

68988–79–4 Benzene, C10-12-alkyl derivs., distn. residues 

68988–99–8 Phenols, sodium salts, mixed with sulfur compounds, gasoline alk. scrubber residues 

68989–88–8 Gases (petroleum), crude distn. and catalytic cracking 

68990–35–2 Distillates (petroleum), arom., hydrotreated, dicyclopentadiene-rich 

68991–49–1 Alkanes, C10-13, arom.-free desulfurized 

68991–50–4 Alkanes, C14-17, arom.-free desulfurized 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-18

CAS No. Product

68991–51–5 Alkanes, C10-13, desulfurized 

68991–52–6 Alkenes, C10-16 

69013–21–4 Fuel oil, pyrolysis 

69029–75–0 Oils, reclaimed 

69430–33–7 Hydrocarbons, C6-30 

70024–88–3 Ethene, thermal cracking products 

70528–71–1 Distillates (petroleum), heavy distillate solvent ext. heart-cut 

70528–72–2 Distillates (petroleum), heavy distillate solvent ext. vacuum overheads 

70528–73–3 Residues (petroleum), heavy distillate solvent ext. vacuum 

70592–76–6 Distillates (petroleum), intermediate vacuum 

70592–77–7 Distillates (petroleum), light vacuum 

70592–78–8 Distillates (petroleum), vacuum 

70592–79–9 Residues (petroleum), atm. tower, light 

70693–00–4 Hydrocarbon waxes (petroleum), oxidized, sodium salts 

70693–06–0 Aromatic hydrocarbons, C9-11 

70913–85–8 Residues (petroleum), solvent-extd. vacuum distilled atm. residuum 

70913–86–9 Alkanes, C18-70 

70955–08–7 Alkanes, C4-6 

70955–09–8 Alkenes, C13-14 .alpha.- 

70955–10–1 Alkenes, C15-18 .alpha.- 

70955–17–8 Aromatic hydrocarbons, C12-20 

71243–66–8 Hydrocarbon waxes (petroleum), clay-treated, microcryst., oxidized, potassium salts 

71302–82–4 Hydrocarbons, C5-8, Houdry butadiene manuf. by-product 

71329–37–8 Residues (petroleum), catalytic cracking depropanizer, C4-rich 

71808–30–5 Tail gas (petroleum), thermal cracking absorber 

72230–71–8 Distillates (petroleum), cracked steam-cracked, C5-17 fraction 

72623–83–7 Lubricating oils (petroleum), C>25, hydrotreated bright stock-based 

72623–84–8 Lubricating oils (petroleum), C15-30, hydrotreated neutral oil-based, contg. solvent deasphalted 

residualoil 

72623–85–9 Lubricating oils (petroleum), C20-50, hydrotreated neutral oil-based, high-viscosity 

72623–86–0 Lubricating oils (petroleum), C15-30, hydrotreated neutral oil-based 

72623–87–1 Lubricating oils (petroleum), C20-50, hydrotreated neutral oil-based 

73138-65-5 Hydrocarbon waxes (petroleum), oxidized, magnesium salts 

92045-43-7 Lubricating oils (petroleum) hydrocracked nonaromatic solvent deparaffined 

92045-58-4 Naphtha (petroleum), isomerization, C6-fration 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemicals termed Petroleum Process Streams Under §710.46(b)(1) 

(Continued)

D-19

CAS No. Product

92062-09-4 Slack wax (petroleum), hydrotreated 

93762–80–2 Alkenes, C15-18 

98859-55-3 Distillates (petroleum), oxidized heavy, compounds with diethanolamine 

98859-56-4 Distillates (petroleum), oxidized heavy, sodium salts 

101316-73-8 Lubricating oils (petroleum), used, noncatalytically refined 

164907-78-2 Extracts (petroleum), asphaltene-low vacuum residue solvent 

164907-79-3 Residues (petroleum), vacuum, asphaltene-low 

178603-63-9 Gas oils (petroleum), vacuum, hydrocracked, hydroisomerized, hydrogenated, C10-25 

178603-64-0 Gas oils (petroleum), vacuum, hydrocracked, hydroisomerized, hydrogenated, C15-30, branched 

and cyclic 

178603-65-1 Gas oils (petroleum), vacuum, hydrocracked, hydroisomerized, hydrogenated, C20-40, branched 

and cyclic 

178603-66-2 Gas oils (petroleum), vacuum, hydrocracked, hydroisomerized, hydrogenated, C25-55, branched 

and cyclic 

212210-93-0 Solvent naphtha (petroleum), heavy aromatic, distillation residues 

221120-39-4 Distillates (petroleum), cracked steam-cracked, C5-12 fraction 

445411-73-4 Gas oils (petroleum), vacuum, hydrocracked, hydroisomerized, hydrogenated, C10-25, branched 

and cyclic 
Appendix D Partially Exempt Chemicals 

D-20

Partially Exempt Chemical Substances Under 40 CFR 710.46(b)(2)

CAS No. Chemical Name

50-70-4 D-Glucitol 

50-81-7 L-Ascorbic acid 

50-99-7 D-Glucose 

56-87-1 L-Lysine 

56-81-5 1,2,3-Propanetriol 

57-50-1 .alpha.-D-Glucopyranoside, .beta.-D-fructofuranosyl 

58-95-7 2H-1-Benzopyran-6-ol, 3,4-dihydro-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-

trimethyltridecyl]-,acetate, (2R)- 

59-02-9 2H-1-Benzopyran-6-ol, 3,4-dihydro-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-

trimethyltridecyl]-, (2R)- 

59-51-8 Methionine 

69-65-8 D-Mannitol 

87-79-6 L-Sorbose 

87-99-0 Xylitol 

96-10-6 Aluminum, chlorodiethyl97-93-8 Aluminum, triethyl100-99-2 Aluminum, tris(2-methylpropyl)- 

123-94-4 Octadecanoic acid, 2,3-dihydroxypropyl ester 

124-38-9 Carbon dioxide 

137-08-6 .beta.-Alanine, N-[(2R)-2,4-dihydroxy-3,3-dimethyl-1-oxobutyl]-, calcium alt (2:1) 

142-47-2 L-Glutamic acid, monosodium salt 

150-30-1 Phenylalanine 

563-43-9 Aluminum, dichloroethyl1070-00-4 Aluminium, trioctyl 

1116-70-7 Aluminum, tributyl1116-73-0 Aluminum, trihexyl1191-15-7 Aluminum, hydrobis (2-methylpropyl)- 

1317-65-3 Limestone 

1333-74-0 Hydrogen 

1592-23-0 Octadecanoic acid, calcium salt 

7440-37-1 Argon 

7440-44-0 Carbon 

7727-37-9 Nitrogen 

7782-42-5 Graphite 

7782-44-7 Oxygen 

8001-21-6 Sunflower oil 

8001-22-7 Soybean oil 

8001-23-8 Safflower oil 

8001-26-1 Linseed oil 

8001-29-4 Cottonseed oil 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemical Substances Under 40 CFR 710.46(b)(2) (Continued)

D-21

CAS No. Chemical Name

8001-30-7 Corn oil 

8001-31-8 Coconut oil 

8001-78-3 Caster oil, hydrogenated 

8001-79-4 Castor oil 

8002-03-7 Peanut oil 

8002-13-9 Rape oil 

8002-43-5 Lecithins 

8002-75-3 Palm oil 

8006-54-0 Lanolin 

8016-28-2 Lard, oil 

8016-70-4 Soybean oil, hydrogenated 

8021-99-6 Charcoal, bone 

8029-43-4 Syrups, hydrolyzed starch 

9004-53-9 Dextrin 

9005-25-8 Starch 

9050-36-6 Maltodextrin 

11103-57-4 Vitamin A 

12075-68-2 Aluminum, di-.mu.-chlorochlorotriethyldi12542-85-7 Aluminum, trichlorotrimethyldi16291-96-6 Charcoal 

26836-47-5 D-Glucitol, monooctadecanoate 

61789-44-4 Fatty acids, castor-oil 

61789-97-7 Tallow 

61789-99-9 Lard 

64147-40-6 Castor oil, dehydrated 

64755-01-7 Fatty acids, tallow, calcium salts 

65996-63-6 Starch, acid-hydrolyzed 

65996-64-7 Starch, enzyme-hydrolyzed 

67701-01-3 Fatty acids, C12-18 

68002-85-7 Fatty acids, C14-22 and C16-22-unsatd. 

68131-37-3 Syrups, hydrolyzed starch, dehydrated 

68188-81-8 Grease, poultry 

68308-36-1 Soybean meal 

68308-54-3 Glycerides, tallow mono-, di- and tri-, hydrogenated 

68334-00-9 Cottonseed oil, hydrogenated 

68334-28-1 Fats and Glyceridic oils, vegetable, hydrogenated 

68409-76-7 Bone meal, steamed 

68424-45-3 Fatty acids, linseed-oil 

68424-61-3 Glycerides, C16-18 and C18-unsatd. mono- and di68425-17-2 Syrups, hydrolized starch, hydrogenated 
Appendix D Partially Exempt Chemicals 

Partially Exempt Chemical Substances Under 40 CFR 710.46(b)(2) (Continued)

D-22

CAS No. Chemical Name

68439-86-1 Bone, ash 

68442-69-3 Benzene, mono-C10-14-alkyl derivs. 

68476-78-8 Molasses 

68514-27-2 Grease, catch basin 

68514-74-9 Palm oil, hydrogenated 

68525-87-1 Corn oil, hydrogenated 

68648-87-3 Benzene, C10-16-alkyl derivs. 

68918-42-3 Soaps, stocks, soya 

68952-94-3 Soaps, stocks, vegetable-oil 

68956-68-3 Fats and glyceridic oils, vegetable 

68989-98-0 Fats and Glyceridic oils, vegetable, residues 

73138-67-7 Lard, hydrogenated 

120962-03-0 Canola oil 

129813-58-7 Benzene, mono-C10-13-alkyl derivs. 

129813-59-8 Benzene, mono-C12-14-alkyl derivs. 

129813-60-1 Benzene, mono-C14-16-alkyl derivs. 
Appendix E Descriptions of Processing and Use Codes 

E-1

Appendix E 

Descriptions of Codes for Reporting Industrial, Commercial, and 

Consumer Processing and Use Information

 The following descriptions were developed by EPA to assist persons submitting 

information in response to 40 CFR 710.52(c)(4) and reported on Part III of IUR Form U. For 

more information, see EPA’s document, "Inventory Update Rule (IUR) Amendment Technical 

Support Document: Exposure-Related Data Useful for Chemical Risk Screening” and “Inventory 

Update Rule (IUR) Technical Support Document: Selection of Consumer and Commercial 

Product Categories” located in the rulemaking record (EPA-HQ-OPPT-2004-0054). 

Processing or Use Operation Descriptions 

Code Operation Description

PC Processing as a reactant Chemical substance is used in chemical reactions for the 

manufacturing of another chemical substance or product. 

PF Processing—incorporation into 

formulation, mixture, or reaction product 

Chemical substance is added to a product (or product mixture) 

prior to further distribution of the product. 

PA Processing—incorporation into article Chemical substance becomes an integral component of an 

article distributed for industrial, trade, or consumer use. 

PK Processing—repackaging Preparation of a chemical substance for distribution in 

commerce in a different form, state, or quantity. This 

includes transferring the substance from a bulk container into 

smaller containers. This definition does not apply to sites that 

only relabel or redistribute the reportable chemical substance 

without removing the chemical substance from the container 

in which it is received or purchased. 

U Use—non-incorporative activities Chemical substance is otherwise used (e.g., as a chemical 

processing or manufacturing aid). 
Appendix E Descriptions of Processing and Use Codes 

E-2

Industrial Function Categories

Code Industrial Function Categories Description

U01 Adsorbents and absorbents Substances that hold another substance by allowing it to penetrate into 

its inner structure. Examples of absorbents include straw oil, alkaline 

solutions, and kerosene. Examples of adsorbents include silica gel, 

bauxite, activated carbon, and activated alumina. 

U02 Adhesives and binding agents Substances that promote bonding between other substances by surface 

attachment. 

U03 Aerosol propellants Substances (usually compressed gases or liquids) used to dissolve or 

suspend other substances and to expel those substances from a 

container in the form of aerosols. 

U04 Agricultural chemicals 

(nonpesticidal) 

Compounds or mixtures used to increase the productivity and quality of 

farm crops. Examples include fertilizers and soil conditioners. 

U05 Anti-adhesive agents Substances that prevent bonding between substances by discouraging 

surface attachment. Examples include adherents, antiblock agents, 

detackifiers, dusting agents, and parting agents. 

U06 Bleaching agents Substances that lighten or whiten a substrate through chemical 

reaction, usually an oxidative or reductive process which degrades the 

color system. The most common bleaching agents belong to one of 

two groups: chlorine-containing bleaching agents (e.g., chlorine, 

hypochlorites, N-chloro compounds, and chlorine dioxide) and 

peroxygen bleaching agents (e.g., hydrogen peroxide and sodium 

perborate). 

U07 Coloring agents, dyes Substances that impart color to other materials or mixtures (i.e. 

substrates) by penetrating into the surface of the substrate. Examples 

of types of dyes include azo, anthraquinone, amino azo, aniline, eosin, 

stilbene, acid, basic or cationic, reactive, disperse, and natural dyes. 

U08 Coloring agents, pigments Substances that impart color to other materials or mixtures (i.e. 

substrates) by attaching themselves to the surface of the substrate 

through binding or adhesion. The Pigments category includes 

fluorescent agents, luminescent agents, whitening agents, pearlizing 

agents, and opacifiers. Examples of pigments include metallic oxides 

of iron, titanium, zinc, cobalt, and chromium; metal powder 

suspensions; lead chromates; vegetable and animal products; and 

synthetic organic pigments. 

U09 Corrosion inhibitors and 

antiscaling agents 

Agents which prevent or retard corrosion or the formation of scale. 

Examples include aniline and pyridine. 

U10 Fillers Substances that are incorporated into a matrix to provide bulk, increase 

strength, hardness, or resistance to impact; and reduce production costs 

by minimizing the amount of more expensive raw materials used in the 

production process. Examples include calcium carbonate, barium 

sulfates, silicates, soft clays, and zinc oxides. 

U11 Fixing agents Substances that are used to permanently fix another material onto a 

substrate within a wet process. Examples of fixing agents include 

albumin, trivalent chromium complexes, metallic hydroxides, tannic 

acid, rosin size, alum, and glycerol. 

U12 Flame retardants Substances that are applied to the surface of or incorporated into 

combustible materials to reduce or eliminate their tendency to ignite 

when exposed to heat or a flame for a short period of time. Examples 

of flame retardants include inorganic salts, chlorinated or brominated 

organic compounds, or organic phosphates/phosphonates. 
Appendix E Descriptions of Processing and Use Codes 

Industrial Function Categories (Continued)

E-3

Code Industrial Function Categories Description

U13 Flotation agents Chemical additives which are used to aid in the process of flotation by 

increasing the degree of aggregation in a suspension. Examples 

include xanthates, sulfonates, thiophosphates, primary and secondary 

alcohols, and ethers. 

U14 Fuels Substances that evolve energy in controlled chemical reactions; the 

most common type of reaction is combustion. Examples of types of 

fuels include fossil, nuclear, and synthetic fuels. 

U15 Functional fluids Liquid or gaseous substances that are used for one or more operational 

properties. Examples of functional fluids include: antifreezes and 

deicing fluids, heat transfer agents (e.g., coolants and refrigerants), and 

dielectric fluids. This category does not include fluids used as 

lubricants and hydraulic/transmission fluids. 

U16 Intermediates Substances that are formed during the production of a chemical, but are 

consumed in a subsequent chemical reaction. 

U17 Lubricants Substances that reduce friction between two adjacent solid surfaces and 

prevent the wear and seizing of the surfaces. Examples include 

greases, oils, and solid film lubricants. 

U18 Odor agents Substances used to control odors, remove odors, mask odors, or impart 

odors. Examples include deodorants and fragrances. 

U19 Oxidizing agents Substances that oxidize a chemical compound, usually by accepting 

electrons from that compound. Examples include ozone, nitric acid, 

hexavalent chromium, and vanadium pentoxide. 

U20 pH-regulating agents Substances used to maintain or change the pH level of a given solution. 

 A pH regulating agent tends to fall into one of three categories: an 

acid, an alkali (base), or a buffer. 

U21 Photosensitive chemicals Substances that alter their physical or chemical structure through 

absorption of light resulting in the emission of light, dissociation, 

discoloration, or other chemical reaction. Examples include 

sensitizers, fluorescents, photovoltaic agents, ultraviolet absorbers, and 

ultraviolet stabilizers. 

U22 Plating agents and metal surface 

treating agents 

Substances that are deposited on the surface of a substrate to change its 

physical or chemical properties. Metal surface treating agents are 

typically used in aqueous solutions for metal surface treatment 

operations such as electroplating, electroless plating, anodizing, and 

chemical conversion coating (e.g., phosphate conversion). Also 

included are non-aqueous metal deposition operations such as vapor 

deposition, ion beam implantation, and sputtering. 

U23 Processing aid, not otherwise 

listed 

Substance that, when added to a process or to a substance or mixture to 

be processed, improves the processing characteristics or the operation 

of the process equipment. Processing aids are not intended to become 

part of the finished product formulation or article. 

U24 Process regulators, used in 

vulcanization or polymerization 

processes 

Substances that change the rate of a chemical reaction, start or stop the 

reaction, or otherwise influence the course of the reaction. Process 

regulators do not become part of the reaction product and are therefore 

not considered to be reactants. 

U25 Process regulators, other than 

polymerization or vulcanization 

processes 

Substances that change the rate of a chemical reaction, start or stop the 

reaction, or otherwise influence the course of the reaction. Process 

regulators do not become part of the reaction product and are therefore 

not considered to be reactants. 
Appendix E Descriptions of Processing and Use Codes 

Industrial Function Categories (Continued)

E-4

Code Industrial Function Categories Description

U26 Reducing agents Substances that reduce a chemical compound, usually be donating 

electrons. Reduction generally occurs by the donation of one or more 

electrons by an atom of the reducing agent, the removal of oxygen 

from a compound, or the addition of hydrogen to a compound. 

U27 Solvents (for cleaning or 

degreasing) 

Substances that are capable of dissolving another substance (solute) to 

form a uniformly dispersed mixture (solution) at the molecular level. 

The category includes diluents used to reduce the concentration of an 

active material to achieve a specified effect, or low-gravity materials 

used primarily to reduce cost. 

U28 Solvents (which become part of 

product formulation or mixture) 

Substances that are capable of dissolving another substance (solute) to 

form a uniformly dispersed mixture (solution) at the molecular level. 

The category includes diluents used to reduce the concentration of an 

active material to achieve a specified effect, or low-gravity materials 

used primarily to reduce cost. 

U29 Solvents (for chemical 

manufacture and processing and 

are not part of product at greater 

than one percent by weight) 

Substances that are capable of dissolving another substance (solute) to 

form a uniformly dispersed mixture (solution) at the molecular level. 

The category includes diluents used to reduce the concentration of an 

active material to achieve a specified effect, or low-gravity materials 

used primarily to reduce cost. 

U30 Stabilizers Substances that function to keep a compound, mixture, or solution from 

changing its form or chemical structure. Stabilizers typically act to 

retard a reaction rate, preserve a chemical equilibrium, act as 

antioxidants, keep pigments and other components in emulsion form, or 

prevent particles in a colloidal suspension from precipitating and 

settling out. Examples of stabilizers include antihydrolysis agents, 

antioxidants, antiozonants, and heat stabilizers. 

U31 Surface active agents Compounds that reduce surface tension when dissolved in water or 

water solutions, or which reduce interfacial tension between two 

liquids or between a liquid and a solid. Examples include carboxylates, 

sulfonates, phosphates, carboxylic acid, esters, and quaternary 

ammonium salts. 

U32 Viscosity adjustors Substances that alter the viscosity of another substance. Examples 

include: viscosity index (VI) improvers, pour point depressants, and 

thickeners. 

U33 Other Substances that cannot be defined by any other category listed in this 

table. 
Appendix E Descriptions of Processing and Use Codes 

E-5

Commercial and Consumer Product Categories

Codes

Commercial and Consumer Product 

Category Description

C01 Adhesives and sealants Chemicals contained in industrial and household 

adhesives; glues; caulking compounds; sealants; and 

linoleum, tile and rubber cements from natural or synthetic 

base stocks. 

C02 Agricultural products (non-pesticidal) Chemicals used to increase the productivity and quality of 

farm crops. Examples include fertilizers and soil 

conditioners. 

C03 Artists’ supplies Chemicals contained in commercial and consumer artists’ 

supplies such as crayons, drawing inks, and markers. 

C04 Automotive care products Chemicals contained in products intended for commercial 

and consumer use in automotive cleaning and care of 

external and within vehicle surfaces. 

C05 Electrical and electronic products Chemicals contained in computers; office equipment; 

household appliances; electric lighting and wiring; video 

and audio recording and communication equipment 

intended for commercial or consumer use. 

C06 Fabrics, textiles and apparel Chemicals contained in commercial and consumer 

products made of cotton, silk, wool, or other natural or 

manmade fibers. 

C07 Glass and ceramic products Chemicals contained in commercial and consumer glass 

and ceramic products. Included in this category are raw 

clay materials used in producing artists’ materials. 

C08 Lawn and garden products (nonpesticidal) Chemicals contained in ready-to-use lawn and household 

garden products for commercial and consumer use. 

C09 Leather products Chemicals contained in hides and skins and artificial 

leather products for commercial and consumer use. 

C10 Lubricants, greases and fuel additives Chemicals added to gasoline, kerosene, and distillate fuel 

oil after refining. These are generally commercial or 

consumer additives to enhance performance or clean 

components of combustion devices. These chemicals may 

be added at the refining stage (SIC 2911) or in the 

secondary market. 

C11 Metal products Metals and metallic substances contained in metal products 

for commercial and consumer use. Metal furniture and 

furnishings are included in this category. 

C12 Paints and coatings Chemicals contained in commercial and consumer paints 

(paste or ready-mix) including artists’ paints; varnishes; 

lacquers; enamels and shellac; paint and varnish removers 

and cleaners. Putties and woodfillers are generally 

included in this category, but may also appear in adhesives 

and sealants. 

C13 Paper products Chemicals contained in commercial and consumer paper 

products. 

C14 Photographic supplies Chemicals contained in photographic apparatus, equipment 

and parts; film, paper, plates, and prepared photographic 

chemicals for commercial and consumer use. 
Appendix E Descriptions of Processing and Use Codes 

Industrial Function Categories (Continued)

E-6

Codes

Commercial and Consumer Product 

Category Description

C15 Polishes and sanitation goods Chemicals contained in polishes and cleaners for furniture, 

metal, glass, and other hard surfaces; waxes and dressings 

for leather and other materials; household and industrial 

disinfectants and bleaches. 

C16 Rubber and plastic products Chemicals contained in commercial and consumer rubber 

and plastic products not elsewhere classified. Products 

include: tires; footwear; flooring; bottles; and similar 

articles. 

C17 Soaps and detergents Chemicals (natural and synthetic) contained in liquid, 

granulated, caked, and flaked washing detergents and 

personal soaps; dishwashing compounds; presoaks and 

scouring compounds for commercial and consumer use. 

C18 Transportation products Chemicals contained in commercial and consumer 

transportation products other than lubricants, greases, and 

fuel additives. 

C19 Wood and wood furniture Chemicals contained in wood products and wood furniture 

for commercial and consumer use. 

C20 Other Chemicals contained in commercial and consumer 

products not elsewhere classified.