Inventory Update Reporting (IUR) Technical Support Document

Replacement of 5-digit NAICS Codes with Industrial Sector (IS) Codes

Draft

U.S. Environmental Protection Agency

Office of Pollution Prevention and Toxics

1201 Constitution Ave., NW 

Washington, DC

October 2009
Executive Summary

The 2006 IUR collection was the first time that EPA collected information on the industrial processing 

and use of organic chemical substances from manufacturers and importers producing 300,000 pounds or 

more of an organic chemical substance at a single site (Form U Part III). For 2006, respondents 

provided the five-digit North American Industry Classification System (NAICS) Code to describe the 

setting in which industrial processing and use occurred. 

EPA examined the 2006 IUR collection and found respondents submitted over 340 unique five-digit 

NAICS codes. Some of the reported codes were invalid and could not be related to any industrial 

setting. Other persons left the NAICS code blank or reported that it was not known or readily 

obtainable. EPA uses the five-digit NAICS code in combination with the industrial function code and 

process and use code to define a use scenario. The large number of possible three-code combinations 

has made it more difficult for EPA to group and assess chemicals. EPA is proposing to replace the 

NAICS code with a new code, Industrial Sector (IS), to describe the industrial setting.

EPA developed the 48 new IS codes by examining the results of the 2006 IUR data collection, reviewing 

the codes used by the European Union for the Registration, Evaluation, Authorisation and Restriction of 

Chemical Substances (REACH) program, and considering EPA’s use of the IUR data. The proposed IS 

codes divide the entire range of NAICS codes into a set of 48 segments covering broader ranges of 

activities. When the reporting for a single NAICS code was frequent, the five-digit NAICS code was 

replaced by a corresponding IS code. When the reporting of NAICS codes was very infrequent and the 

exposure scenario was likely to be the same for a range of NAICS codes, a single IS code replaced all 

NAICS codes beginning with the same digit, i.e. a single IS code replaces all NAICS codes beginning 

with the number five which indicates services. 

Replacing the NAICS codes with a new IS code will have benefits for both EPA and respondents. The 

new codes will sort the chemicals into broader categories thus reducing the reporting burden on 

respondents since they do not need to determine a specific five-digit NAICS code. EPA anticipates that 

using the IS categories will reduce the number of erroneous responses, may reduce the number of 

confidential business information (CBI) claims, and may reduce the number of unique chemical 

exposure scenarios that EPA will need to develop for priority setting and risk screening programs.
1

Table of Contents

Executive Summary

1.0 Background..................................................................................................................................... 1

1.1 2006 IUR Reporting Requirements ............................................................................................ 1

1.2 2006 IUR Statistics..................................................................................................................... 1

1.3 European Union Reporting Codes.............................................................................................. 4

2.0 Development of New Industrial Sector Codes................................................................................ 6

3.0 Advantages of Industrial Sector Codes........................................................................................... 8

Table 1. Top 25 NAICS Codes................................................................................................................... 3

Table 2. Number of Codes in Each NAICS Reporting Level..................................................................... 6

Table 3. Industrial Sector (IS) Codes to Replace Five-Digit NAICS........................................................ 9

Table 4. Number of Times New IS Codes Would Have Been Reported................................................. 13

Table 5. NAICS and IS Crosswalk ........................................................................................................... 15

Appendix A – Additional Information
1

1.0 Background

This section provides background information on the IUR reporting requirements, the results of the 2006 

IUR data collection, and information on the European Union’s chemical use data collection. EPA used 

this information to develop new Industrial Sector (IS) codes that will replace the five-digit NAICS codes 

in the 2011 IUR reporting.

1.1 2006 IUR Reporting Requirements

The 2006 IUR collection was the first time that EPA collected information on the industrial processing 

and use of organic chemical substances from manufacturers producing 300,000 pounds or more of an 

organic chemical substance at a single site (Part III of IUR Form U). This reporting was in addition to 

the production volume information collected in previous reporting cycles. The industrial processing and 

use information is collected using three reporting codes which taken together define a potential exposure 

scenario:

 Type of Process or Use (P/U) Code – Defines the operations in which the chemical is 

used.

 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

 North American Industry Classification System (NAICS) Code – Codes published by the 

Office of Management and Budget (OMB) to describe the industry in which chemical 

processing and use may occur. IUR requires submitters to report a five-digit NAICS 

code.

 Industrial Function Category (IFC) Code – Defines the function of the chemical (e.g., 

adhesive, flame retardant, solvent). The 2006 IUR utilized 33 IFC codes. Additional 

information on the 2011 IFC codes can be found in Overview of Harmonized U.S.-

Canada Industrial Function and Consumer and Commercial Product Codes for Chemical 

Inventory Reporting, June 2009, prepared by U.S. EPA, Health Canada, and Environment 

Canada.

EPA uses this information to perform screening-level exposure characterizations for industrial settings.

1.2 2006 IUR Statistics

Based on information from the NAICS Web site (http://www.census.gov/naics/2007/index.html), there 

are 724 possible five-digit NAICS codes that respondents can enter in Part III of the IUR Form U. Twodigit NAICS codes represent general sectors, with additional digits added to further refine the 

description of the industry. An example of the hierarchy for chemical manufacturing is listed below:
2

 31 – 33: Manufacturing

 325: Chemical Manufacturing

 3251: Basic Chemical Manufacturing

 32513: Synthetic Dye and Pigment Manufacturing

 325131: Inorganic Dye and Pigment Manufacturing

Submissions to the 2006 IUR included over 340 unique five-digit NAICS codes. EPA uses the NAICS 

code to aid in developing exposure scenarios. Many of the 340 NAICS codes reported are from similar 

industries that would have similar exposure scenarios. The large number of NAICS codes reported 

makes it more difficult to group chemicals. 

The three-code combination of P/U, NAICS, and IFC is needed to fully describe the industrial 

processing and use activity; therefore, there are a large number of possible three-code combinations. 

The 2006 IUR three-code combinations allow almost 120,000 degrees of freedom. Although not all of 

the NAICS codes are applicable to chemical manufacturing and processing, the 2006 IUR database has 

over 2,300 unique combinations of P/U, NAICS, and IFC. The large number of unique combinations 

increases the difficulty and time required to sort and classify chemicals since EPA would either need to 

develop exposure scenarios for each unique combination or determine which three-code combinations 

have similar exposure scenarios and can be grouped together. 

EPA reviewed information on the extent of confidential business information (CBI) claims for the 

industrial processing and use information. When considering the three-code combination, which is 

needed to fully evaluate the exposure scenario, EPA considers the combination CBI if any of the three 

codes were claimed CBI. The 2006 IUR database had the following CBI claims for the individual data 

elements:

 P/U – 4,019 of 15,151 entries were claimed CBI (27 percent);

 IFC – 4,190 of 15,151 entries were claimed CBI (28 percent);

 NAICS – 4,476 of 15,151 entries were claimed CBI (30 percent);

When evaluating the CBI status of the three-code combination (at least one code in the reported 

combination was CBI), approximately 80 percent were claimed CBI. Note that EPA did not evaluate 

this by chemical; one chemical may have a CBI three-code combination but the same three-code 

combination may be reported as non-CBI for another chemical. 

Table 1 shows the top 25 NAICS codes reported in the 2006 IUR and Table A-1 in Attachment A 

contains the full list. The IUR database contains 15,151 potential NAICS code entries (number of 

reports in database version 1.02). As shown in the tables, the chemical manufacturing codes (325 series) 

were reported most frequently. Some responses reported for NAICS were invalid or did not provide 

useful information:

 Not Readily Obtainable – Since respondents were submitting information for downstream 

processing and use, the IUR requirements allowed respondents to enter ‘NRO’ if they did 

not have readily obtainable information on NAICS code. NRO was reported 693 times.

 Blank – There were 127 submissions that left NAICS code blank.
3

 Invalid Entries – The IUR database contained several NAICS codes that were not listed 

on the NAICS Web site (see Table A-1). There were 274 invalid entries.

Invalid, blank, and NRO entries do not provide use information and account for over six percent of the 

NAICS code responses.

Table 1. Top 25 NAICS Codes

NAICS 2007 NAICS US Title Number of Times Reported

32519 Other Basic Organic Chemical Manufacturing 3,215

32599 All Other Chemical Product and Preparation Manufacturing 1,380

32521 Resin and Synthetic Rubber Manufacturing 815

32561 Soap and Cleaning Compound Manufacturing 672

32511 Petrochemical Manufacturing 633

32551 Paint and Coating Manufacturing 507

21111 Oil and Gas Extraction 457

32411 Petroleum Refineries 450

32532 Pesticide and Other Agricultural Chemical Manufacturing 392

42469 Other Chemical and Allied Products Merchant Wholesalers 362

32619 Other Plastics Product Manufacturing 320

32552 Adhesive Manufacturing 291

32419 Other Petroleum and Coal Products Manufacturing 268

32518 Other Basic Inorganic Chemical Manufacturing 205

32512 Industrial Gas Manufacturing 196

32212 Paper Mills 170

32513 Synthetic Dye and Pigment Manufacturing 154

32211 Pulp Mills 141

32591 Printing Ink Manufacturing 126

32541 Pharmaceutical and Medicine Manufacturing 113

32629 Other Rubber Product Manufacturing 98

42471 Petroleum Bulk Stations and Terminals 96

32562 Toilet Preparation Manufacturing 91

32611 Plastics Packaging Materials and Unlaminated Film and Sheet Manufacturing 86

31331 Textile and Fabric Finishing Mills 79
4

1.3 European Union Reporting Codes

EPA reviewed information on the European Union’s (EU) Registration, Evaluation, Authorisation and 

Restriction of Chemical Substances (REACH) program to compare the reporting codes used in REACH 

to EPA’s IUR reporting codes. The following documents describe the codes and categories that are used 

to describe chemical processing and use under REACH:

 “Technical Guidance Document for Preparing the Chemical Safety Assessment, 

Part D” dated November 26, 2007 (Guidance Document).

 “Environmental Exposure Assessment: Revision of the Use Pattern Description” 

dated July 30, 2008 (Use Pattern Revision Document). 

 “Guidance on Information Requirements and Chemical Safety Assessment” 

Chapter R12: Use Descriptor System, May 2008 (Use Descriptor Document). 

The EU’s use descriptor system is designed such that codes can be linked to a pre-defined environmental 

release category (ERC) or used in a Tier 1 exposure model (e.g., European Commission on 

Ecotoxicology and Toxicology (ECETOC) Targeted Risk Assessment model (TRA) or Consumer 

Exposure model developed by the Netherlands (ConsExpo)). According to the Guidance Document, the 

use descriptors can help structure and group the identified uses in a sensible way for exposure scenario 

building and exposure estimation and support consistency and harmonized information across markets. 

The EU system uses a Sector of Use (SU) code to provide information on the industrial sector in which a 

chemical is used. The sector of use is based on the EU’s NACE category system which is analogous to 

the U.S. NAICS codes. NACE codes are similar to NAICS codes in that there is a hierarchy to the 

numbering system. For example, the beginning of the hierarchy for the agriculture, forestry, and fishing 

NACE code is listed below:

A. - Agriculture, forestry and fishing; 

A1. - Crop and animal production, hunting and related service activities;

A1.1. - Growing of non-perennial crops; and,

A1.1.1 - Growing of cereals (except rice), leguminous crops and oil seeds.

The SU codes are defined similarly as the NACE codes except SU codes typically only use the first or 

second levels of the hierarchy. The EU defined SU codes corresponding to second or third level NACE 

codes for industries that may require additional detail. The codes also group similar NACE codes 

together. Table A-2 lists the EU SU codes. The EU documents provide a crosswalk between SU and 

NACE codes. 

Examples:

 SU 1 Agriculture, Forestry, and Fishing – Uses top level of NACE hierarchy

(NACE Code A);

 SU 4 Manufacture of Food Products – Uses second level of NACE hierarchy to 

provide additional details (NACE Code C10). The top level for this category 

(NACE C) is defined as manufacturing;
5

 SU8 Manufacture of Bulk, Large Scale Chemicals (including petroleum products) 

– This category could include NACE codes C19 - Manufacture of coke and 

refined petroleum products and NACE code C20 - Manufacture of chemicals and 

chemical products.

The EU system also defines two categories that can be used if one of the 23 defined codes is not 

applicable:

 SU 0.1 – Other activity related to manufacturing of chemical products; and,

 SU 0.2 – Other activity related to manufacture and services.

The Use Descriptor Document states that the categories are meant to help manufacturers and importers 

in mapping their markets, which is the starting point for developing exposure scenarios. The categories 

have been limited to what the EU felt was essential for exposure scenario building and what is needed 

for the tools used in exposure assessments. If one of the 23 defined categories is not applicable to their 

chemical, manufacturers are able to select SU0.1 or 0.2 and add a NACE codes if they need to be more 

specific. In addition, manufacturers can use SU3 – Industrial Manufacturing (all) indicating the 

substance is broadly used in industry. EPA considered adopting the EU Sector of Use (SU) codes but 

rejected this idea because the SU codes do not provide sufficient specificity when differentiating 

between industries.
6

2.0 Development of New Industrial Sector Codes

EPA used information from the 2006 IUR summary statistics and EU’s use code descriptions to develop 

a code that could be used to replace the NAICS codes. As discussed in Section 1.0, the current system 

of reporting three-code combinations resulted in over 2,300 different combinations, approximately 80 

percent of which were claimed CBI. One of the primary considerations in developing a new 

replacement code is to reduce the number of choices available to respondents. Reducing the choices 

available in reporting the three-code industrial processing and use combinations could have several

benefits:

1. Fewer three-code combinations would aid EPA in grouping chemicals for priority setting. 

2. Broader categories could lead to fewer CBI claims. 

3. Broader categories may reduce the number of blank or NRO responses since respondents may

know the general industrial category but not the specific five-digit NAICS code.

For these reasons, EPA evaluated whether a reporting code could be used in place of the NAICS code 

used in the 2006 IUR. Of the IUR reporting codes, the NAICS code has the largest number of possible 

choices. EPA first considered whether using NAICS codes with fewer digits would be preferable to the 

five-digit NAICS. Table 2 shows the number of possible NAICS codes for each reporting level.

Table 2. Number of Codes in Each NAICS Reporting Level

NAICS Length Number of Codes

2-Digit 17

3-Digit 99

4-Digit 313

5-Digit 724

6-Digit 1,175

Using the three-digit code still allows almost 100 different responses while using the two-digit code 

would be insufficient for EPA’s needs. In reviewing the code descriptions, the three-digit code may be 

insufficient in some cases. The 2006 IUR statistics in Table A-1 show that over 60 percent of the 

NAICS codes reported were in the chemical manufacturing series (325 series). EPA would require a 

higher level of detail than provided with a three-digit code in this series. For example, EPA would want 

to distinguish soaps and detergents (3256) from paints and coatings (32551) since these chemicals would 

likely have different use, exposure, and release scenarios. 

EPA developed the industrial sector codes (IS) to group similar NAICS codes together while still 

providing the detail required for the chemical manufacturing codes. Table 3 at the end of this 

memorandum lists the new IS codes, a description of the code, the rationale for selecting the codes, and 

the link between the IS code and the NAICS system. In developing the IS codes, EPA considered the 

level of detail required for developing use and exposure scenarios, the number of 2006 IUR submissions 

using the code, the code definition, and the level of difficulty required in reporting more detailed codes. 

For example, only 39 of 15,151 submissions reported codes in the Agriculture series (NAICS code 11). 
7

The five-digit NAICS codes for this series distinguish the type of animal or crop raised (e.g., 11111 –

Soybean Farming; 11115 – Corn Farming). Since exposure scenarios are not likely to be dependent 

upon type of crop or animal, EPA defined one IS code for all agricultural activities. However, 

submissions in the chemical manufacturing sector (325 series) would have different exposure scenarios; 

therefore, EPA developed IS codes with more detail for this sector.

The 48 IS codes in Table 3 provide sufficient detail on industrial sector and can be used in combination 

with the process/use code and industrial function to define the industrial processing and use activity. By

replacing the NAICS codes with the IS code, the number of potential three-code combinations is 

reduced by about 93 percent to 7,920 combinations. It is likely that the number of combinations actually

reported would be significantly less. Table 4 shows the number of times each IS code would have been 

reported in the 2006 IUR.

Table 5 provides a simpler view of Table 3 which can be used as a crosswalk between the NAICS code 

and IS code. Respondents who know the NAICS code can easily identify the IS code from Table 5. 

Respondents that do not know a specific NAICS code may be able to identify a more general category. 

EPA developed the IS codes from the NAICS system. U.S. manufacturers are familiar with the NAICS 

system since it is used in many regulatory programs. Respondents can use the NAICS/IS crosswalk to 

easily translate the NAICS codes they reported in the 2006 IUR to the new IS code.
8

3.0 Advantages of Industrial Sector Codes

Replacing the NAICS codes with the IS codes has several advantages during IUR data collection, 

processing, and analysis:

Data Collection

 Reduces the number of unique industrial sectors for respondents to select. Respondents 

will still be able to translate known NAICS codes to IS codes. Respondents that do not 

know the specific NAICS code may be able to provide the more descriptive IS code, thus 

reducing the number of NROs or blanks reported.

 Reduces the number of three-code combinations that respondents need to report. 

Currently, respondents only report the ten three-code combinations that account for the 

highest percentages of the production volume. Reducing the number of combinations 

may provide EPA with more information for some chemicals.

 Broader groups may reduce burden on respondents since they do not need to determine a 

specific five-digit NAICS code.

Data Processing and Analysis

 Chemicals are automatically classified into fewer groups which will reduce the number of 

unique chemical exposure scenarios and help EPA prioritize and screen chemicals.

 May reduce the number of invalid entries since there will likely be fewer transcription 

errors (e.g., 32591 instead of 32519).

 The IS codes can be easily programmed into the e-IUR software.

 The broader IS codes may result in fewer CBI claims which will allow EPA to make 

more information available to the public.

 The IS codes more closely align to the EU Sector of Use codes which will allow EPA to 

compare U.S. data with that collected by the EU.
9

Table 3. Industrial Sector (IS) Codes to Replace Five-Digit NAICS

2007 

NAICS

US Code 2007 NAICS US Title

Industrial 

Sector 

Code Title Change/Rationale

11 Agriculture, Forestry, Fishing and Hunting IS1 Agriculture, Forestry, Fishing and Hunting 39 of 15,151 responses used NAICS

codes in the 11 series (<1%). It is 

likely that specific chemicals would not 

need to be linked to the more detailed 

NAICS which are divided by type of 

crop.

211 Oil and Gas Extraction IS2 Oil and Gas Drilling, Extraction, and 

Support Activities

3-digit NAICS should be sufficient to 

distinguish oil and gas extraction 

activities.

212 Mining (except Oil and Gas) IS3 Mining (except Oil and Gas) 3-digit NAICS should be sufficient to 

distinguish mining, quarrying, and oil 

and gas extraction activities.

22 Utilities IS4 Utilities 163 of 15,151 responses used NAICS 

codes in the 22 series (~1%). It is 

likely that specific chemicals would not 

need to be linked to the more detailed 

NAICS.

23 Construction IS5 Construction 132 of 15,151 responses used NAICS 

codes in the 23 series (<1%). It is 

likely that specific chemicals would not 

need to be linked to the more detailed 

NAICS.

311 Food Manufacturing IS6 Food, beverage, and tobacco product 

manufacturing

198 of 15,151 responses used NAICS 

codes in the 311 and 312 series (~1%). 

It is likely that specific chemicals 

would not need to be linked to the more 

detailed NAICS.

312 Beverage and Tobacco Product Manufacturing

313 Textile Mills IS7 Textiles, apparel, and leather manufacturing 164 of 15,151 responses used NAICS 

codes in this series (~1%). It is likely 

that specific chemicals would not need 

to be linked to the more detailed 

NAICS.

314 Textile Product Mills

315 Apparel Manufacturing

316 Leather and Allied Product Manufacturing
10

Table 3. Industrial Sector (IS) Codes to Replace Five-Digit NAICS

2007 

NAICS

US Code 2007 NAICS US Title

Industrial 

Sector 

Code Title Change/Rationale

321 Wood Product Manufacturing IS8 Wood Product Manufacturing 3-digit NAICS should be sufficient for 

this category.

322 Paper Manufacturing IS9 Paper Manufacturing 3-digit NAICS should be sufficient for 

this category.

323 Printing and Related Support Activities IS10 Printing and Related Support Activities 3-digit NAICS should be sufficient for 

this category.

32411 Petroleum Refineries IS11 Petroleum Refineries 790 of 15,151 responses used NAICS 

codes in the 324 series (~5%). EPA 

developed more specific IS codes for 

this category.

32412 Asphalt Paving, Roofing, and Coating Materials 

Manufacturing

IS12 Asphalt Paving, Roofing, and Coating 

Materials Manufacturing

324191 Petroleum Lubricating Oil and Grease 

Manufacturing

IS13 Petroleum Lubricating Oil and Grease 

Manufacturing

324199 All Other Petroleum and Coal Products 

Manufacturing

IS14 All Other Petroleum and Coal Products 

Manufacturing

32511 Petrochemical Manufacturing IS15 Petrochemical Manufacturing Approximately 60% of responses used 

NAICS codes in the 325 - Chemical 

Manufacturing series; therefore, the 

greatest level of detail is needed for 

this category.

32512 Industrial Gas Manufacturing IS16 Industrial Gas Manufacturing

32513 Synthetic Dye and Pigment Manufacturing IS17 Synthetic Dye and Pigment Manufacturing

325182 Carbon Black Manufacturing IS18 Carbon Black Manufacturing

32518 Other Basic Inorganic Chemical Manufacturing IS19 All Other Basic Inorganic Chemical 

Manufacturing

325192 Cyclic Crude and Intermediate Manufacturing IS20 Cyclic Crude and Intermediate 

Manufacturing

32519 Other Basic Organic Chemical Manufacturing IS21 All Other Basic Organic Chemical 

Manufacturing

325211 Plastics Material and Resin Manufacturing IS22 Plastics Material and Resin Manufacturing

325212 Synthetic Rubber Manufacturing IS23 Synthetic Rubber Manufacturing

325221, 

325222

Organic Fiber Manufacturing IS24 Organic Fiber Manufacturing

3253 Pesticide, Fertilizer, and Other Agricultural

Chemical Manufacturing

IS25 Pesticide, Fertilizer, and Other Agricultural 

Chemical Manufacturing
11

Table 3. Industrial Sector (IS) Codes to Replace Five-Digit NAICS

2007 

NAICS

US Code 2007 NAICS US Title

Industrial 

Sector 

Code Title Change/Rationale

3254 Pharmaceutical and Medicine Manufacturing IS26 Pharmaceutical and Medicine 

Manufacturing

32551 Paint and Coating Manufacturing IS27 Paint and Coating Manufacturing

32552 Adhesive Manufacturing IS28 Adhesive Manufacturing

3256 Soap, Cleaning Compound, and Toilet Preparation 

Manufacturing

IS29 Soap, Cleaning Compound, and Toilet 

Preparation Manufacturing

32591 Printing Ink Manufacturing IS30 Printing Ink Manufacturing

32592 Explosives Manufacturing IS31 Explosives Manufacturing

325991 Custom Compounding of Purchased Resins IS32 Custom Compounding of Purchased Resins

325992 Photographic Film Paper, Plate, and Chemical 

Manufacturing

IS33 Photographic Film, Paper, Plate, and 

Chemical Manufacturing

325998 All Other Miscellaneous Chemical Product and 

Preparation Manufacturing

IS34 All Other Chemical Product and Preparation 

Manufacturing

3261 Plastics Product Manufacturing IS35 Plastics Product Manufacturing 4-digit NAICS should be sufficient for 

this category.

3262 Rubber Product Manufacturing IS36 Rubber Product Manufacturing 4-digit NAICS should be sufficient for 

this category.

327 Nonmetallic Mineral Product Manufacturing IS37 Nonmetallic Mineral Product 

Manufacturing (includes clay, glass, 

cement, concrete, lime, gypsum, and other 

nonmetallic mineral product manufacturing.

157 of 15,151 responses used NAICS 

codes in the 327 series (~1%). It is 

likely that specific chemicals would not 

need to be linked to the more detailed 

NAICS.

331 Primary Metal Manufacturing IS38 Primary Metal Manufacturing 3-digit NAICS should be sufficient for 

this category.

332 Fabricated Metal Product Manufacturing IS39 Fabricated Metal Product Manufacturing 3-digit NAICS should be sufficient for 

this category.

333 Machinery Manufacturing IS40 Machinery Manufacturing 3-digit NAICS should be sufficient for 

this category.

334 Computer and Electronic Product Manufacturing IS41 Computer and Electronic Product 

Manufacturing

3-digit NAICS should be sufficient for 

this category.

335 Electrical Equipment, Appliance, and Component 

Manufacturing

IS42 Electrical Equipment, Appliance, and 

Component Manufacturing

3-digit NAICS should be sufficient for 

this category.

336 Transportation Equipment Manufacturing IS43 Transportation Equipment Manufacturing 3-digit NAICS should be sufficient for 

this category.
12

Table 3. Industrial Sector (IS) Codes to Replace Five-Digit NAICS

2007 

NAICS

US Code 2007 NAICS US Title

Industrial 

Sector 

Code Title Change/Rationale

337 Furniture and Related Product Manufacturing IS44 Furniture and Related Product 

Manufacturing

3-digit NAICS should be sufficient for 

this category.

339 Miscellaneous Manufacturing IS45 Miscellaneous Manufacturing 3-digit NAICS should be sufficient for 

this category.

42 Wholesale Trade IS46 Wholesale and Retail Trade These are not manufacturing NAICS 

codes; therefore, 2-digit NAICS should 

be sufficient. 

44-45 Retail Trade

48-49 Transportation and Warehousing

51 Information IS47 Services These are not manufacturing NAICS 

codes; therefore, 2-digit NAICS should 

be sufficient. 

52 Finance and Insurance

53 Real Estate and Rental and Leasing

54 Professional, Scientific, and Technical Services

55 Management of Companies and Enterprises

56 Administrative and Support and Waste Management 

and Remediation Services

61 Educational Services

62 Health Care and Social Assistance

71 Arts, Entertainment, and Recreation

72 Accommodation and Food Services

81 Other Services (except Public Administration)

92 Public Administration

IS48 Other Users can enter descriptive text.

Data Source: IUR Database Version 1.02
13

Table 4. Number of Times New IS Codes Would Have Been Reported

IS Code IS Title Number of Times Reported

IS1 Agriculture, Forestry, Fishing and Hunting 39

IS2 Oil and Gas Drilling, Extraction, and Support Activities 520

IS3 Mining (except Oil and Gas) 89

IS4 Utilities 157

IS5 Construction 116

IS6 Food, beverage, and tobacco product manufacturing 196

IS7 Textiles, apparel, and leather manufacturing 164

IS8 Wood Product Manufacturing 54

IS9 Paper Manufacturing 483

IS10 Printing and Related Support Activities 41

IS11 Petroleum Refineries 450

IS12 Asphalt Paving, Roofing, and Coating Materials 

Manufacturing

72

IS13 Petroleum Lubricating Oil and Grease Manufacturing See notes

IS14 All Other Petroleum and Coal Products Manufacturing See notes

IS15 Petrochemical Manufacturing 633

IS16 Industrial Gas Manufacturing 196

IS17 Synthetic Dye and Pigment Manufacturing 154

IS18 Carbon Black Manufacturing See notes

IS19 All Other Basic Inorganic Chemical Manufacturing See notes

IS20 Cyclic Crude and Intermediate Manufacturing See notes

IS21 All Other Basic Organic Chemical Manufacturing See notes

IS22 Plastics Material and Resin Manufacturing See notes

IS23 Synthetic Rubber Manufacturing See notes

IS24 Organic Fiber Manufacturing 57

IS25 Pesticide, Fertilizer, and Other Agricultural Chemical 

Manufacturing

459

IS26 Pharmaceutical and Medicine Manufacturing 115

IS27 Paint and Coating Manufacturing 507

IS28 Adhesive Manufacturing 291

IS29 Soap, Cleaning Compound, and Toilet Preparation 

Manufacturing

763

IS30 Printing Ink Manufacturing 126

IS31 Explosives Manufacturing 26

IS32 Custom Compounding of Purchased Resin See notes

IS33 Photographic Film, Paper, Plate, and Chemical Manufacturing See notes

IS34 All Other Chemical Product and Preparation Manufacturing See notes

IS35 Plastics Product Manufacturing 582

IS36 Rubber Product Manufacturing 220

IS37 Nonmetallic Mineral Product Manufacturing (includes clay, 

glass, cement, concrete, lime, gypsum, and other nonmetallic 

mineral product manufacturing.

157

IS38 Primary Metal Manufacturing 154

IS39 Fabricated Metal Product Manufacturing 95

IS40 Machinery Manufacturing 67

IS41 Computer and Electronic Product Manufacturing 73

IS42 Electrical Equipment, Appliance, and Component 

Manufacturing

69

IS43 Transportation Equipment Manufacturing 120
14

IS Code IS Title Number of Times Reported

IS44 Furniture and Related Product Manufacturing 13

IS45 Miscellaneous Manufacturing 65

IS46 Wholesale and Retail Trade 857

IS47 Services 122

Data Source: IUR Database Version 1.02

Notes: IS codes that are matched to a 6-digit NAICS code could not be counted since 6-digit NAICS codes were not reported 

in the 2006 IUR.

IS13 and IS14 – NAICS code 32419 was reported 268 times; it is not possible to divide this between codes IS13 and IS14.

IS18 and IS19 – NAICS code 32518 was reported 205 times; it is not possible to divide this between codes IS18 and IS19.

IS20 and IS21 – NAICS code 32519 was reported 3,215 times; it is not possible to divide this between codes IS20 and IS21.

IS22 and IS23 – NAICS code 32521 was reported 815 times; it is not possible to divide this between codes IS22 and IS23.

IS32, IS33, and IS34 – NAICS code 32599 was reported 1,380 times; it is not possible to divide this between codes IS32, 

IS33, and IS34.
15

Table 5. NAICS and IS Crosswalk

NAICS IS Code IS Title

11 IS1 Agriculture, Forestry, Fishing and Hunting

211 IS2 Oil and Gas Drilling, Extraction, and Support Activities

213

212 IS3 Mining (except Oil and Gas)

22 IS4 Utilities

23 IS5 Construction

311 IS6 Food, beverage, and tobacco product manufacturing

312

313

IS7 Textiles, apparel, and leather manufacturing 314

315

316

321 IS8 Wood Product Manufacturing

322 IS9 Paper Manufacturing

323 IS10 Printing and Related Support Activities

32411 IS11 Petroleum Refineries

32412 IS12 Asphalt Paving, Roofing, and Coating Materials Manufacturing

324191 IS13 Petroleum Lubricating Oil and Grease Manufacturing 

324199 IS14 All Other Petroleum and Coal Products Manufacturing

32511 IS15 Petrochemical Manufacturing

32512 IS16 Industrial Gas Manufacturing

32513 IS17 Synthetic Dye and Pigment Manufacturing

325182 IS18 Carbon Black Manufacturing

32518 IS19 All Other Basic Inorganic Chemical Manufacturing

325192 IS20 Cyclic Crude and Intermediate Manufacturing

32519 IS21 All Other Basic Organic Chemical Manufacturing

325211 IS22 Plastic Material and Resin Manufacturing

325212 IS23 Synthetic Rubber Manufacturing

32522 IS24 Organic Fiber Manufacturing

3253 IS25

Pesticide, Fertilizer, and Other Agricultural Chemical 

Manufacturing

3254 IS26 Pharmaceutical and Medicine Manufacturing

32551 IS27 Paint and Coating Manufacturing

32552 IS28 Adhesive Manufacturing

3256 IS29 Soap, Cleaning Compound, and Toilet Preparation Manufacturing

32591 IS30 Printing Ink Manufacturing

32592 IS31 Explosives Manufacturing

325991 IS32 Custom Compounding of Purchased Resin

325992 IS33 Photographic Film Paper, Plate, and Chemical Manufacturing

325998 IS34 All Other Chemical Product and Preparation Manufacturing

3261 IS35 Plastics Product Manufacturing

3262 IS36 Rubber Product Manufacturing

327 IS37

Nonmetallic Mineral Product Manufacturing (includes clay, glass, 

cement, concrete, lime, gypsum, and other nonmetallic mineral 

product manufacturing.

331 IS38 Primary Metal Manufacturing
16

NAICS IS Code IS Title

332 IS39 Fabricated Metal Product Manufacturing

333 IS40 Machinery Manufacturing

334 IS41 Computer and Electronic Product Manufacturing

335 IS42 Electrical Equipment, Appliance, and Component Manufacturing

336 IS43 Transportation Equipment Manufacturing

337 IS44 Furniture and Related Product Manufacturing

339 IS45 Miscellaneous Manufacturing

42

IS46 Wholesale and Retail Trade 

44

45

48

49

51

IS47 Services

52

53

54

55

56

61

62

71

72

81

92

IS48 Other
A-1

Appendix A – Additional Information

Table A-1. NAICS Codes Reported in 2006 IUR

NAICS 2007 NAICS US Title

a

Number of Times 

Reported

00000 9

11111 Soybean Farming 2

11115 Corn Farming 2

11142 Nursery and Floriculture Production 1

11191 Tobacco Farming 1

11193 Sugarcane Farming 1

11199 All Other Crop Farming 22

11211 Beef Cattle Ranching and Farming, including Feedlots 1

11221 Hog and Pig Farming 1

11511 Support Activities for Crop Production 5

11521 Support Activities for Animal Production 2

11531 Support Activities for Forestry 1

21111 Oil and Gas Extraction 457

21112 4

21211 Coal Mining 8

21221 Iron Ore Mining 13

21222 Gold Ore and Silver Ore Mining 4

21223 Copper, Nickel, Lead, and Zinc Mining 19

21229 Other Metal Ore Mining 9

21231 Stone Mining and Quarrying 3

21232 Sand, Gravel, Clay, and Ceramic and Refractory Minerals Mining and 

Quarrying

4

21233 1

21239 Other Nonmetallic Mineral Mining and Quarrying 28

21311 Support Activities for Mining 63

21342 1

21519 2

22111 Electric Power Generation 59

22112 Electric Power Transmission, Control, and Distribution 4

22121 Natural Gas Distribution 48

22130 3

22131 Water Supply and Irrigation Systems 27

22132 Sewage Treatment Facilities 17

22133 Steam and Air-Conditioning Supply 2

22212 3

23411 12

23531 1

23561 1

23599 3

23611 Residential Building Construction 3

23612 1

 

a NAICS codes without titles were not found on the U.S. Census Bureau NAICS Web site (http://www.census.gov/cgibin/sssd/naics/naicsrch). Searching for these entries resulted in the message ‘XXXXX is not a valid 2007 NAICS code.
A-2

NAICS 2007 NAICS US Title

a

Number of Times 

Reported

23621 Industrial Building Construction 2

23622 Commercial and Institutional Building Construction 12

23711 Water and Sewer Line and Related Structures Construction 1

23712 Oil and Gas Pipeline and Related Structures Construction 3

23730 1

23731 Highway, Street, and Bridge Construction 44

23811 Poured Concrete Foundation and Structure Contractors 9

23812 Structural Steel and Precast Concrete Contractors 2

23814 Masonry Contractors 8

23816 Roofing Contractors 2

23819 Other Foundation, Structure, and Building Exterior Contractors 1

23821 Electrical Contractors and Other Wiring Installation Contractors 1

23822 Plumbing, Heating, and Air-Conditioning Contractors 8

23831 Drywall and Insulation Contractors 1

23832 Painting and Wall Covering Contractors 4

23833 Flooring Contractors 4

23839 Other Building Finishing Contractors 2

23891 Site Preparation Contractors 4

23899 All Other Specialty Trade Contractors 2

25193 3

25212 3

31111 Animal Food Manufacturing 28

31119 2

31122 Starch and Vegetable Fats and Oils Manufacturing 17

31131 Sugar Manufacturing 6

31134 Nonchocolate Confectionery Manufacturing 1

31141 Frozen Food Manufacturing 1

31142 Fruit and Vegetable Canning, Pickling, and Drying 1

31151 Dairy Product (except Frozen) Manufacturing 6

31161 Animal Slaughtering and Processing 5

31181 Bread and Bakery Product Manufacturing 3

31191 Snack Food Manufacturing 3

31192 Coffee and Tea Manufacturing 2

31193 Flavoring Syrup and Concentrate Manufacturing 3

31194 Seasoning and Dressing Manufacturing 3

31199 All Other Food Manufacturing 88

31211 Soft Drink and Ice Manufacturing 11

31214 Distilleries 10

31222 Tobacco Product Manufacturing 8

31311 Fiber, Yarn, and Thread Mills 18

31321 Broadwoven Fabric Mills 3

31322 Narrow Fabric Mills and Schiffli Machine Embroidery 1

31331 Textile and Fabric Finishing Mills 79

31332 Fabric Coating Mills 1

31411 Carpet and Rug Mills 8

31499 All Other Textile Product Mills 14

31511 Hosiery and Sock Mills 2

31519 Other Apparel Knitting Mills 5
A-3

NAICS 2007 NAICS US Title

a

Number of Times 

Reported

31611 Leather and Hide Tanning and Finishing 32

31621 Footwear Manufacturing 1

32111 Sawmills and Wood Preservation 7

32121 Veneer, Plywood, and Engineered Wood Product Manufacturing 12

32141 1

32159 4

32191 Millwork 2

32199 All Other Wood Product Manufacturing 33

32211 Pulp Mills 141

322110 Pulp Mills 1

32212 Paper Mills 170

32213 Paperboard Mills 65

32221 Paperboard Container Manufacturing 50

32222 Paper Bag and Coated and Treated Paper Manufacturing 29

32223 Stationery Product Manufacturing 3

32229 Other Converted Paper Product Manufacturing 24

32251 1

32311 Printing 35

32312 Support Activities for Printing 6

32321 2

32331 1

32351 2

32371 1

32411 Petroleum Refineries 450

32412 Asphalt Paving, Roofing, and Saturated Materials Manufacturing 72

32418 1

32419 Other Petroleum and Coal Products Manufacturing 268

32441 1

32510 4

32511 Petrochemical Manufacturing 633

32512 Industrial Gas Manufacturing 196

32513 Synthetic Dye and Pigment Manufacturing 154

32514 1

32515 1

32518 Other Basic Inorganic Chemical Manufacturing 205

32519 Other Basic Organic Chemical Manufacturing 3215

32521 Resin and Synthetic Rubber Manufacturing 815

32522 Artificial and Synthetic Fibers and Filaments Manufacturing 57

32530 2

32531 Fertilizer Manufacturing 67

32532 Pesticide and Other Agricultural Chemical Manufacturing 392

32540 2

32541 Pharmaceutical and Medicine Manufacturing 113

32550 4

32551 Paint and Coating Manufacturing 507

32552 Adhesive Manufacturing 291

32559 9

32561 Soap and Cleaning Compound Manufacturing 672
A-4

NAICS 2007 NAICS US Title

a

Number of Times 

Reported

32562 Toilet Preparation Manufacturing 91

32579 2

32591 Printing Ink Manufacturing 126

32592 Explosives Manufacturing 26

32599 All Other Chemical Product and Preparation Manufacturing 1380

32611 Plastics Packaging Materials and Unlaminated Film and Sheet 

Manufacturing

86

32612 Plastics Pipe, Pipe Fitting, and Unlaminated Profile Shape Manufacturing 47

32613 Laminated Plastics Plate, Sheet (except Packaging), and Shape 

Manufacturing

20

32614 Polystyrene Foam Product Manufacturing 25

32615 Urethane and Other Foam Product (except Polystyrene) Manufacturing 72

32616 Plastics Bottle Manufacturing 12

32619 Other Plastics Product Manufacturing 320

32621 Tire Manufacturing 68

32622 Rubber and Plastics Hoses and Belting Manufacturing 54

32629 Other Rubber Product Manufacturing 98

32651 2

32699 1

32711 Pottery, Ceramics, and Plumbing Fixture Manufacturing 6

32712 Clay Building Material and Refractories Manufacturing 9

32721 Glass and Glass Product Manufacturing 17

32731 Cement Manufacturing 62

32732 Ready-Mix Concrete Manufacturing 9

32733 Concrete Pipe, Brick, and Block Manufacturing 4

32739 Other Concrete Product Manufacturing 18

32742 Gypsum Product Manufacturing 9

32791 Abrasive Product Manufacturing 4

32799 All Other Nonmetallic Mineral Product Manufacturing 19

32911 1

32951 1

33111 Iron and Steel Mills and Ferroalloy Manufacturing 71

33121 Iron and Steel Pipe and Tube Manufacturing from Purchased Steel 6

33122 Rolling and Drawing of Purchased Steel 12

33131 Alumina and Aluminum Production and Processing 26

33141 Nonferrous Metal (except Aluminum) Smelting and Refining 6

33142 Copper Rolling, Drawing, Extruding, and Alloying 3

33149 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, 

Extruding, and Alloying

4

33151 Ferrous Metal Foundries 21

33152 Nonferrous Metal Foundries 5

33210 2

33211 Forging and Stamping 2

33221 Cutlery and Handtool Manufacturing 2

33231 Plate Work and Fabricated Structural Product Manufacturing 16

33232 Ornamental and Architectural Metal Products Manufacturing 3

33241 Power Boiler and Heat Exchanger Manufacturing 1

33243 Metal Can, Box, and Other Metal Container (Light Gauge) Manufacturing 2
A-5

NAICS 2007 NAICS US Title

a

Number of Times 

Reported

33251 Hardware Manufacturing 2

33252 1

33261 Spring and Wire Product Manufacturing 4

33271 Machine Shops 7

33272 Turned Product and Screw, Nut, and Bolt Manufacturing 1

33281 Coating, Engraving, Heat Treating, and Allied Activities 19

33299 All Other Fabricated Metal Product Manufacturing 35

33311 Agricultural Implement Manufacturing 3

33312 Construction Machinery Manufacturing 5

33313 Mining and Oil and Gas Field Machinery Manufacturing 8

33322 Plastics and Rubber Industry Machinery Manufacturing 2

33329 Other Industrial Machinery Manufacturing 3

33331 Commercial and Service Industry Machinery Manufacturing 6

33341 Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration 

Equipment Manufacturing

20

33351 Metalworking Machinery Manufacturing 6

33361 Engine, Turbine, and Power Transmission Equipment Manufacturing 1

33391 Pump and Compressor Manufacturing 4

33392 Material Handling Equipment Manufacturing 2

333924 Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing 1

33399 All Other General Purpose Machinery Manufacturing 6

33411 Computer and Peripheral Equipment Manufacturing 11

33431 Audio and Video Equipment Manufacturing 1

33441 Semiconductor and Other Electronic Component Manufacturing 51

33451 Navigational, Measuring, Electromedical, and Control Instruments 

Manufacturing

6

33461 Manufacturing and Reproducing Magnetic and Optical Media 4

33511 Electric Lamp Bulb and Part Manufacturing 1

33512 Lighting Fixture Manufacturing 2

33521 Small Electrical Appliance Manufacturing 1

33522 Major Appliance Manufacturing 6

33531 Electrical Equipment Manufacturing 4

33552 1

33591 Battery Manufacturing 11

33592 Communication and Energy Wire and Cable Manufacturing 8

33593 Wiring Device Manufacturing 8

33599 All Other Electrical Equipment and Component Manufacturing 27

33611 Automobile and Light Duty Motor Vehicle Manufacturing 55

33612 Heavy Duty Truck Manufacturing 6

33621 Motor Vehicle Body and Trailer Manufacturing 8

33631 Motor Vehicle Gasoline Engine and Engine Parts Manufacturing 1

33634 Motor Vehicle Brake System Manufacturing 1

33635 Motor Vehicle Transmission and Power Train Parts Manufacturing 2

33636 Motor Vehicle Seating and Interior Trim Manufacturing 4

33637 Motor Vehicle Metal Stamping 1

33639 Other Motor Vehicle Parts Manufacturing 17

33641 Aerospace Product and Parts Manufacturing 10

33651 Railroad Rolling Stock Manufacturing 8
A-6

NAICS 2007 NAICS US Title

a

Number of Times 

Reported

33661 Ship and Boat Building 4

33699 Other Transportation Equipment Manufacturing 3

33711 Wood Kitchen Cabinet and Countertop Manufacturing 4

33712 Household and Institutional Furniture Manufacturing 6

33721 Office Furniture (including Fixtures) Manufacturing 1

33792 Blind and Shade Manufacturing 2

33911 Medical Equipment and Supplies Manufacturing 8

33933 1

33992 Sporting and Athletic Goods Manufacturing 5

33993 Doll, Toy, and Game Manufacturing 1

33994 Office Supplies (except Paper) Manufacturing 1

33995 Sign Manufacturing 1

33999 All Other Miscellaneous Manufacturing 49

34211 2

35218 1

35219 5

35552 4

36211 1

42164 2

42174 1

42261 1

42269 19

42271 2

42291 2

42312 Motor Vehicle Supplies and New Parts Merchant Wholesalers 1

42314 Motor Vehicle Parts (Used) Merchant Wholesalers 1

42333 Roofing, Siding, and Insulation Material Merchant Wholesalers 1

42351 Metal Service Centers and Other Metal Merchant Wholesalers 1

42362 Electrical and Electronic Appliance, Television, and Radio Set Merchant 

Wholesalers

1

42372 Plumbing and Heating Equipment and Supplies (Hydronics) Merchant 

Wholesalers

1

42373 Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant 

Wholesalers

2

42374 Refrigeration Equipment and Supplies Merchant Wholesalers 5

42381 Construction and Mining (except Oil Well) Machinery and Equipment 

Merchant Wholesalers

1

42382 Farm and Garden Machinery and Equipment Merchant Wholesalers 2

42383 Industrial Machinery and Equipment Merchant Wholesalers 2

42384 Industrial Supplies Merchant Wholesalers 6

42385 Service Establishment Equipment and Supplies Merchant Wholesalers 1

42386 Transportation Equipment and Supplies (except Motor Vehicle) Merchant 

Wholesalers

3

42391 Sporting and Recreational Goods and Supplies Merchant Wholesalers 2

42392 Toy and Hobby Goods and Supplies Merchant Wholesalers 1

42393 Recyclable Material Merchant Wholesalers 3

42399 Other Miscellaneous Durable Goods Merchant Wholesalers 11

42411 Printing and Writing Paper Merchant Wholesalers 1

42417 4
A-7

NAICS 2007 NAICS US Title

a

Number of Times 

Reported

42442 Packaged Frozen Food Merchant Wholesalers 1

42447 Meat and Meat Product Merchant Wholesalers 1

42448 Fresh Fruit and Vegetable Merchant Wholesalers 1

42459 Other Farm Product Raw Material Merchant Wholesalers 1

42461 Plastics Materials and Basic Forms and Shapes Merchant Wholesalers 13

42468 1

42469 Other Chemical and Allied Products Merchant Wholesalers 362

42471 Petroleum Bulk Stations and Terminals 96

42472 Petroleum and Petroleum Products Merchant Wholesalers (except Bulk 

Stations and Terminals)

61

42491 Farm Supplies Merchant Wholesalers 12

42495 Paint, Varnish, and Supplies Merchant Wholesalers 9

42511 Business to Business Electronic Markets 1

42512 Wholesale Trade Agents and Brokers 3

44121 Recreational Vehicle Dealers 1

44131 Automotive Parts and Accessories Stores 4

44132 Tire Dealers 1

44413 Hardware Stores 2

44511 Supermarkets and Other Grocery (except Convenience) Stores 1

44512 Convenience Stores 1

44612 Cosmetics, Beauty Supplies, and Perfume Stores 1

44711 Gasoline Stations with Convenience Stores 31

44719 Other Gasoline Stations 21

44819 Other Clothing Stores 2

45431 Fuel Dealers 69

45439 Other Direct Selling Establishments 5

48111 Scheduled Air Transportation 1

48211 Rail Transportation 3

48311 Deep Sea, Coastal, and Great Lakes Water Transportation 14

48411 General Freight Trucking, Local 1

48511 Urban Transit Systems 1

48611 Pipeline Transportation of Crude Oil 1

48621 Pipeline Transportation of Natural Gas 4

48691 Pipeline Transportation of Refined Petroleum Products 33

48811 Airport Operations 3

48819 Other Support Activities for Air Transportation 1

48831 Port and Harbor Operations 1

48832 Marine Cargo Handling 3

48849 Other Support Activities for Road Transportation 1

49311 General Warehousing and Storage 42

49313 Farm Product Warehousing and Storage 1

49319 Other Warehousing and Storage 1

52314 Commodity Contracts Brokerage 1

54138 Testing Laboratories 17

54143 Graphic Design Services 1

54171 Research and Development in the Physical, Engineering, and Life Sciences 5

56121 Facilities Support Services 6

56172 Janitorial Services 1
A-8

NAICS 2007 NAICS US Title

a

Number of Times 

Reported

56179 Other Services to Buildings and Dwellings 1

56221 Waste Treatment and Disposal 12

56291 Remediation Services 2

56299 All Other Waste Management Services 1

61111 Elementary and Secondary Schools 1

61131 Colleges, Universities, and Professional Schools 1

61151 Technical and Trade Schools 1

61169 All Other Schools and Instruction 4

62211 General Medical and Surgical Hospitals 1

62561 1

71141 Agents and Managers for Artists, Athletes, Entertainers, and Other Public 

Figures

2

71394 Fitness and Recreational Sports Centers 1

81111 Automotive Mechanical and Electrical Repair and Maintenance 4

81112 Automotive Body, Paint, Interior, and Glass Repair 12

81119 Other Automotive Repair and Maintenance 1

81121 Electronic and Precision Equipment Repair and Maintenance 1

81131 Commercial and Industrial Machinery and Equipment (except Automotive 

and Electronic) Repair and Maintenance

6

81141 Home and Garden Equipment and Appliance Repair and Maintenance 1

81211 Hair, Nail, and Skin Care Services 1

81232 Drycleaning and Laundry Services (except Coin-Operated) 4

81292 Photofinishing 21

81411 Private Households 1

87415 7

92411 Administration of Air and Water Resource and Solid Waste Management 

Programs

1

92532 1

92811 National Security 11

99216 1

Blank 127

NRO 693
A-9

Table A-2. EU Sector of Use Codes

Code Definition

SU 0.1 Other activity related to manufacturing of chemical products

SU 0.2 Other activity related to manufacture and services

SU 1 Agriculture, forestry, fishery

SU 2 Mining, (including offshore industries)

SU 3 Industrial Manufacturing (all)

SU 4 Manufacture of food products

SU 5 Manufacture of textiles, leather, fur

SU 6 Manufacture of paper and paper products

SU 7 Printing and reproduction of recorded media

SU 8 Manufacture of bulk, large scale chemicals (including petroleum products)

SU 9 Manufacture of fine chemicals

SU 10 Chemical formulation and/or re-packaging

SU 11 Manufacture of rubber products

SU 12 Manufacture of plastics products, including compounding and conversion

SU 13 Manufacture of other non-metallic mineral products, e.g. plasters, cement

SU 14 Manufacture of basic metals

SU 15 Manufacture of fabricated metal products, except machinery and equipment

SU 16 Manufacture of computer, electronic and optical products, electrical equipment

SU 17 General manufacturing, e.g. machinery, equipment, vehicles, other transport equipment.

SU 18 Manufacture of furniture

SU 19 Building and construction work

SU 20 Health services

SU 21 Private households (= general public = consumers)

SU 22 Public domain (administration, education, entertainment, services, craftsmen)

SU 23 Recycling