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Pt. 355 40 CFR Ch. I (7–1–13 Edition) 

(h) The health professional receiving 

the trade secret information may disclose it to EPA only under the following circumstances: The health professional must believe that such disclosure is necessary in order to learn from 

the Agency additional information 

about the chemical necessary to assist 

him in carrying out the responsibilities 

set forth in paragraphs (c), (d), and (e) 

of this section. Such information comprises facts regarding adverse health 

and environmental effects. 

PART 355—EMERGENCY PLANNING 

AND NOTIFICATION 

Subpart A—General Information 

Sec. 

355.1 What is the purpose of this part? 

355.2 Who do ‘‘you,’’ ‘‘I,’’ and ‘‘your’’ refer 

to in this part? 

355.3 Which section contains the definitions 

of the keywords used in this part? 

Subpart B—Emergency Planning 

WHO MUST COMPLY

355.10 Must my facility comply with the 

emergency planning requirements of this 

subpart? 

355.11 To what substances do the emergency 

planning requirements of this subpart 

apply? 

355.12 What quantities of extremely hazardous substances trigger emergency 

planning requirements? 

355.13 How do I calculate the quantity of an 

extremely hazardous substance present 

in mixtures? 

355.14 Do I have to aggregate extremely 

hazardous substances to determine the 

total quantity present? 

355.15 Which threshold planning quantity do 

I use for an extremely hazardous substance present at my facility in solid 

form? 

355.16 How do I determine the quantity of 

extremely hazardous substances present 

for certain forms of solids? 

HOW TO COMPLY

355.20 If this subpart applies to my facility, 

what information must I provide, who 

must I submit it to, and when is it due? 

355.21 In what format should the information be submitted? 

Subpart C—Emergency Release 

Notification 

WHO MUST COMPLY

355.30 What facilities must comply with the 

emergency release notification requirements of this subpart? 

355.31 What types of releases are exempt 

from the emergency release notification 

requirements of this subpart? 

355.32 Which emergency release notification 

requirements apply to continuous releases? 

355.33 What release quantities of EHSs and 

CERCLA hazardous substances trigger 

the emergency release notification requirements of this subpart? 

HOW TO COMPLY

355.40 What information must I provide? 

355.41 In what format should the information be submitted? 

355.42 To whom must I submit the information? 

355.43 When must I submit the information? 

Subpart D—Additional Provisions 

355.60 What is the relationship between the 

emergency release notification requirements of this part and the release notification requirements of CERCLA? 

355.61 How are keywords in this part defined? 

APPENDIX A TO PART 355—THE LIST OF EXTREMELY HAZARDOUS SUBSTANCES AND

THEIR THRESHOLD PLANNING QUANTITIES

(ALPHABETICAL ORDER) 

APPENDIX B TO PART 355—THE LIST OF EXTREMELY HAZARDOUS SUBSTANCES AND

THEIR THRESHOLD PLANNING QUANTITIES

(CAS NUMBER ORDER) 

AUTHORITY: Sections 302, 303, 304, 325, 327, 

328, and 329 of the Emergency Planning and 

Community Right-to-Know Act of 1986 

(EPCRA) (42 U.S.C. 11002, 11003, 11004, 11045, 

11047, 11048, and 11049). 

SOURCE: 73 FR 65462, Nov. 3, 2008, unless 

otherwise noted. 

Subpart A—General Information 

§ 355.1 What is the purpose of this 

part? 

(a) This part (40 CFR part 355) establishes requirements for a facility to 

provide information necessary for developing and implementing State and 

local chemical emergency response 

plans, and requirements for emergency 

notification of chemical releases. This 

part also lists Extremely Hazardous 


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Environmental Protection Agency § 355.13 

Substances (EHSs) and Threshold Planning Quantities (TPQs) in Appendices 

A and B, which are used in determining 

if you are subject to these requirements. 

(b) This part is written in a special 

format to make it easier to understand 

the regulatory requirements. Like 

other Environmental Protection Agency (EPA) regulations, this part establishes enforceable legal requirements. 

Information considered non-binding 

guidance under EPCRA is indicated in 

this regulation by the word ‘‘note’’ and 

a smaller typeface. Such notes are provided for information purposes only 

and are not considered legally binding 

under this part. 

§ 355.2 Who do ‘‘you,’’ ‘‘I,’’ and ‘‘your’’ 

refer to in this part? 

Throughout this part, ‘‘you,’’ ‘‘I,’’ 

and ‘‘your’’ refer to the owner or operator of a facility. 

§ 355.3 Which section contains the 

definitions of the key words used in 

this part? 

The definitions of key words used in 

this part are in §355.61. It is important 

to read the definitions for these key 

words because the definition explains 

the word’s specific meaning associated 

with the regulations in this part. 

Subpart B—Emergency Planning 

WHO MUST COMPLY

§ 355.10 Must my facility comply with 

the emergency planning requirements of this subpart? 

You must comply with the emergency planning requirements in this 

subpart if your facility meets either of 

the following two conditions: 

(a) Any extremely hazardous substance (EHS) is present at your facility 

in an amount equal to or greater than 

its threshold planning quantity (TPQ), 

or 

(b) Your facility has been designated 

for emergency planning purposes, after 

public notice and opportunity for comment, by one of the following three entities: 

(1) The State Emergency Response 

Commission (SERC). 

(2) The Governor of the State in 

which your facility is located. 

(3) The Chief Executive Officer of the 

Tribe for the Indian Tribe under whose 

jurisdiction your facility is located. 

§ 355.11 To what substances do the 

emergency planning requirements 

of this subpart apply? 

The emergency planning requirements of this subpart apply to any EHS 

listed in Appendices A and B of this 

part. Additionally, if a facility is designated for emergency planning purposes, as provided in §355.10(b), substances that are not EHSs at this facility may become subject to the emergency planning requirements. 

§ 355.12 What quantities of extremely 

hazardous substances trigger emergency planning requirements? 

Any EHS present at your facility in 

an amount equal to or greater than its 

TPQ triggers the emergency planning 

requirements of this subpart. The TPQs 

are listed in Appendices A and B of this 

part in the column labeled ‘‘threshold 

planning quantity.’’ 

§ 355.13 How do I calculate the quantity of an extremely hazardous substance present in mixtures? 

If an EHS is present in a mixture in 

a particular container, determine the 

quantity (in pounds) of the EHS in that 

container by multiplying the concentration of the EHS (in weight percent) by the weight (in pounds) of the 

mixture in the container. If the concentration of an EHS is less than or 

equal to one percent in the mixture, 

you do not have to count that EHS. 

Here is an example calculation: 

Example: You have 150 pounds of a mixture 

that contains 20 weight percent of a certain 

EHS. The quantity of EHS present in the 

mixture is: 

EHS (in pounds) 

= (weight percent of EHS) × (weight of mixture) 

= (20 percent) × (150 pound mixture) 

= (0.20) × (150) 

EHS (in pounds) 

= 30 pounds 


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§ 355.14 40 CFR Ch. I (7–1–13 Edition) 

§ 355.14 Do I have to aggregate extremely hazardous substances to 

determine the total quantity 

present? 

You must aggregate (i.e., add together) the amounts of each EHS at 

your facility to determine if a TPQ is 

present. This means that, for a particular EHS, you must determine the 

total amount present at any one time 

at your facility by adding together the 

quantity of pure EHS and the quantity 

contained in all mixtures, regardless of 

location, number of containers, or 

method of storage. You do not have to 

count an EHS in a mixture if the concentration of that EHS is less than or 

equal to one percent. 

§ 355.15 Which threshold planning 

quantity do I use for an extremely 

hazardous substance present at my 

facility in solid form? 

EHSs that are in solid form are subject to one of two different TPQs (for 

example, TPQs may be listed as 500/ 

10,000 pounds), both of which are listed 

in Appendices A and B of this part. 

Here is how to determine which of the 

two listed TPQs you must use for an 

EHS present at your facility in solid 

form: 

(a) Use the lower TPQ from Appendices A and B of this part if the solid: 

(1) Is in powdered form and has a particle size less than 100 microns; 

(2) Is in solution; 

(3) Is in molten form; or 

(4) Meets the criteria for a National 

Fire Protection Association (NFPA) 

rating of 2, 3 or 4 for reactivity. 

NOTE TO PARAGRAPH (a): Use the instructions in §355.16 to calculate the quantity 

present for the categories of solids listed in 

paragraphs (a)(1), (2) and (3) of this section. 

(b) If the solid does not meet one of 

the criteria in paragraph (a) of this section, then the TPQ is 10,000 pounds. 

§ 355.16 How do I determine the quantity of extremely hazardous substances present for certain forms of 

solids? 

For the three forms of solids that are 

listed in §355.15(a)(1) through (3), use 

these instructions to determine the 

quantity of extremely hazardous substance present: 

(a) Solid in powdered form with a particle size less than 100 microns. Multiply 

the weight percent of solid with a particle size less than 100 microns in a particular container by the total weight of 

solid in the container. 

(b) Solid in solution. Multiply the 

weight percent of the non-reactive 

solid in solution in a particular container by the total weight of solution 

in that container. Then multiply by 

0.2. 

NOTE TO PARAGRAPH (b): This reduction in 

quantity must not be used to determine the 

amount present at one-time at a facility for 

reporting under 40 CFR 370.10. 

(c) Solid in molten form. Multiply the 

weight of the non-reactive solid in molten form by 0.3. 

NOTE TO PARAGRAPH (c): This reduction in 

quantity must not be used to determine the 

amount present at one-time at a facility for 

reporting under 40 CFR 370.10. 

[73 FR 65462, Nov. 3, 2008, as amended at 77 

FR 16688, Mar. 22, 2012] 

HOW TO COMPLY

§ 355.20 If this subpart applies to my 

facility, what information must I 

provide, who must I submit it to, 

and when is it due? 

Use this table to determine the information you must provide, who to provide it to, and when: 


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Environmental Protection Agency § 355.31 

What types of emergency planning notification are required? What information must I provide? To whom must I provide the 

information? 

When must I provide the information? 

(a) Emergency planning notification.You must provide notice that 

your facility is subject to the 

emergency planning requirements of this subpart.

To the SERC and the LEPC .. Within 60 days after your facility first becomes subject 

to the requirements of this 

subpart. If no LEPC exists 

for your facility at the time 

you are required to provide 

emergency planning notification, then you should report to the LEPC within 30 

days after an LEPC is established for the emergency 

planning district in which 

your facility is located. 

(b) Facility emergency coordinator.You must designate a facility 

representative who will participate in the local emergency planning process as 

a facility emergency response coordinator. You 

must provide notice of this 

facility representative.

To the LEPC (or the SERC if 

there is no LEPC, or the 

Governor if there is no 

SERC).

Within 60 days after your facility first becomes subject 

to the requirements of this 

subpart. If no LEPC exists 

when you first report, then 

provide an additional report 

to the LEPC within 30 days 

after such LEPC is established for the emergency 

planning district in which 

your facility is located. 

(c) Changes relevant to emergency planning.You must provide notice of 

any changes occurring at 

your facility that may be relevant to emergency planning.

To the LEPC .......................... Within 30 days after the 

changes have occurred. 

(d) Requested information ....... You must provide any information necessary for developing or implementing the 

local emergency plan if the 

LEPC requests it.

To the LEPC .......................... Promptly. Note: The LEPC 

may specify a time frame 

for this information. 

§ 355.21 In what format should the information be submitted? 

EPA does not require any specific 

format. EPA recommends that you 

submit the information described in 

§355.20 in writing in order to insure appropriate documentation. The SERC or 

LEPC may request that this information be submitted in a specific format. 

Subpart C—Emergency Release 

Notification 

WHO MUST COMPLY

§ 355.30 What facilities must comply 

with the emergency release notification requirements of this subpart? 

You must comply with the emergency release notification requirements in this subpart if both of these 

two conditions are met: 

(a) You produce, use, or store a hazardous chemical at your facility; and 

(b) You release a reportable quantity 

(RQ) of any EHS or of a hazardous substance as defined by the Comprehensive 

Environmental Response, Compensation, and Liability Act (CERCLA Hazardous Substance) at your facility. Certain releases are exempted from these 

requirements. Exempted releases are 

listed in §355.31. 

NOTE TO PARAGRAPH (b): In addition to the 

emergency release notification requirements 

of this subpart, releases of CERCLA hazardous substances are subject to the notification requirements under CERCLA. This is 

explained further in subpart D of this part. 

§ 355.31 What types of releases are exempt from the emergency release 

notification requirements of this 

subpart? 

You do not have to provide emergency release notification under this 

subpart for any of the following six 

types of releases of EHSs or CERCLA 

hazardous substances that occur at 

your facility: 

(a) Any release that results in exposure to persons solely within the 

boundaries of your facility. 


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§ 355.32 40 CFR Ch. I (7–1–13 Edition) 

(b) Any release that is a federally 

permitted release as defined in section 

101(10) of CERCLA. 

(c) Any release of a pesticide product 

that is exempt from reporting under 

section 103(e) of CERCLA. 

(d) Any release that does not meet 

the definition of release under section 

101(22) of CERCLA and is therefore exempt from CERCLA section 103(a) reporting. 

(e) Any radionuclide release that occurs: 

(1) Naturally in soil from land holdings such as parks, golf courses, or 

other large tracts of land. 

(2) Naturally from land disturbance 

activities, including farming, construction, and land disturbance incidental 

to extraction during mining activities, 

except that which occurs at uranium, 

phosphate, tin, zircon, hafnium, vanadium, monazite, and rare earth mines. 

Land disturbance incidental to extraction includes: Land clearing; overburden removal and stockpiling; excavating, handling, transporting, and 

storing ores and other raw (not 

beneficiated or processed) materials; 

and replacing in mined-out areas coal 

ash, earthen materials from farming or 

construction, or overburden or other 

raw materials generated from the exempted mining activities. 

(3) From the dumping and transportation of coal and coal ash (including 

fly ash, bottom ash, and boiler slags), 

including the dumping and land spreading operations that occur during coal 

ash uses. 

(4) From piles of coal and coal ash, 

including fly ash, bottom ash, and boiler slags. 

(f) Any release less than 1,000 pounds 

per 24 hours of nitrogen oxide or nitrogen dioxide to the air which is the result of combustion and combustion related activities. 

(g) Any release to the air of a hazardous substance from animal waste at 

farms that stable or confine fewer than 

the numbers of animal specified in any 

of the following categories. 

(1) 700 mature dairy cows, whether 

milked or dry. 

(2) 1,000 veal calves. 

(3) 1,000 cattle other than mature 

dairy cows or veal calves. Cattle includes but is not limited to heifers, 

steers, bulls and cow/calf pairs. 

(4) 2,500 swine each weighing 55 

pounds or more. 

(5) 10,000 swine each weighing less 

than 55 pounds. 

(6) 500 horses. 

(7) 10,000 sheep or lambs. 

(8) 55,000 turkeys. 

(9) 30,000 laying hens or broilers, if 

the farm uses a liquid manure handling 

system. 

(10) 125,000 chickens (other than laying hens), if the farm uses other than 

liquid manure handling system. 

(11) 82,000 laying hens, if the farm 

uses other than a liquid manure handling system. 

(12) 30,000 ducks (if the farm uses 

other than a liquid manure handling 

system). 

(13) 5,000 ducks (if the farm uses a liquid manure handling system). 

(h) Any release to the air of a hazardous substance from animal waste at 

farms from animals that are not stabled or otherwise confined. 

[73 FR 65462, Nov. 3, 2008, as amended at 73 

FR 76960, Dec. 18, 2008] 

§ 355.32 Which emergency release notification requirements apply to continuous releases? 

If the release of an EHS or CERCLA 

hazardous substance is continuous and 

stable in quantity and rate at your facility as defined in 40 CFR 302.8(b), 

then the release qualifies for reduced 

reporting requirements under this subpart. Under these reduced reporting requirements, you do not need to provide 

the notifications required under 

§355.40. However, in addition to the notifications required under 40 CFR 302.8, 

you must make all of the following notifications to the community emergency coordinator for the LEPC for 

any area likely to be affected by the release and to the SERC of any State 

likely to be affected by the release: 

(a) Initial notifications as specified 

in 40 CFR 302.8 (d) and (e). 

(b) Notification of a ‘‘statistically 

significant increase,’’ defined in 40 CFR 

302.8(b) as any increase above the upper 

bound of the reported normal range. 

(c) Notification of a ‘‘new release’’ as 

specified in 40 CFR 302.8(g)(1). 


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Environmental Protection Agency § 355.42 

(d) Notification of a change in the 

normal range of the release as specified 

under 40 CFR 302.8(g)(2). 

§ 355.33 What release quantities of 

EHSs and CERCLA hazardous substances trigger the emergency release notification requirements of 

this subpart? 

The release of a reportable quantity 

(RQ) of an EHS or CERCLA hazardous 

substance within any 24-hour period 

triggers the emergency release notification requirements. RQs for EHSs are 

listed in Appendices A and B of this 

part in the column labeled ‘‘reportable 

quantity.’’ RQs for CERCLA hazardous 

substances are listed in Table 302.4 of 

40 CFR 302.4 in the column labeled 

‘‘final RQ.’’ 

HOW TO COMPLY

§ 355.40 What information must I provide? 

You must make two separate notifications to comply with the emergency 

release notification requirements of 

this subpart: an immediate notification, and as soon as practicable thereafter a written follow-up emergency 

notification (or notifications, as more 

information becomes available). 

(a) Immediate notification. The notice 

required under this section shall include as much of the following information known at the time. However, 

the retrieval of this information should 

not cause a delay in the notification on 

the emergency response. 

(1) The chemical name or identity of 

any substance involved in the release. 

(2) Indicate whether the substance is 

an EHS. 

(3) Provide an estimate of the quantity of any such substance that was released into the environment. 

(4) State the time and duration of the 

release. 

(5) The medium or media into which 

the release occurred. 

(6) Any known or anticipated acute 

or chronic health risks associated with 

the emergency and, where appropriate, 

advice regarding medical attention 

necessary for exposed individuals. 

(7) Proper precautions to take as a 

result of the release, including evacuation (unless such information is readily available to the community emergency coordinator pursuant to the 

emergency plan). 

(8) The name and telephone number 

of the individual (or individuals) to be 

contacted for further information. 

(b) Written follow-up emergency notification. Except for releases that occur 

during transportation or from storage 

incident to transportation, you must 

provide a written follow-up emergency 

notice (or notices, as more information 

becomes available), as soon as practicable after the release. In the written 

follow-up emergency notice, you must 

provide and update the information required in the immediate notification 

and include additional information 

with respect to all of the following: 

(1) Actions taken to respond and contain the release. 

(2) Any known or anticipated acute 

or chronic health risks associated with 

the release. 

(3) Where appropriate, advice regarding medical attention necessary for exposed individuals. 

(c) You are not required to submit a 

written follow-up notification for a release that occurred during transportation or from storage incident to 

transportation. See §355.42(b) for requirements for reporting such releases. 

§ 355.41 In what format should the information be submitted? 

The immediate notification, described in §355.40(a), should be oral. 

The follow-up emergency notification, 

described in §355.40(b), shall be in writing. EPA does not specify a particular 

format for the written follow-up emergency notification. 

NOTE: The LEPC may request a specific 

format for this information. 

§ 355.42 To whom must I submit the information? 

(a) You must provide the immediate 

emergency release notification information and the written follow-up notification to: 

(1) The community emergency coordinator for the LEPC of any area likely 

to be affected by the release (if there is 

no LEPC, notify the relevant local 

emergency response personnel); and 

(2) The SERC of any State likely to 

be affected by the release. 


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§ 355.43 40 CFR Ch. I (7–1–13 Edition) 

(b) For a release that occurs during 

transportation or from storage incident to transportation, you may meet 

the requirements of this subpart by notifying the 911 operator (or in the absence of a 911 emergency telephone 

number, the operator) of the immediate notification information listed in 

§355.40(a). You are not required under 

this subpart to submit a written follow-up notification, as described in 

§355.40(b), for such a release. 

§ 355.43 When must I submit the information? 

(a) You must provide the required 

emergency release notification information described under §355.40(a), immediately. 

(b) You must provide the written follow-up emergency notice (or notices, as 

more information becomes available) 

described under §355.40(b), as soon as 

practicable after the release. 

Subpart D—Additional Provisions 

§ 355.60 What is the relationship between the emergency release notification requirements of this part 

and the release notification requirements of CERCLA? 

The emergency release notification 

requirements of this part are in addition to the release notification requirements of CERCLA. If you have a release of a CERCLA hazardous substance, you must comply with the 

emergency release notification requirements of this part and the release notification requirements of CERCLA section 103, codified at 40 CFR part 302. 

Use this table to determine which 

emergency release notification requirements apply to your release: 

If a reportable quantity of a substance is 

released within a 24-hour period at your 

facility 

And if the release is reportable under 

EPCRA Section 304, you must 

And if the release is reportable under 

CERCLA Section 103, you must 

(a) And the substance is on BOTH the list 

of EHSs (Appendices A and B of this 

part) AND the list of CERCLA Hazardous Substances (40 CFR 302.4).

Notify the LEPC and the SERC in accordance with §§ 355.40 through 

355.43 of this part (except for a release during transportation or from 

storage incident to transportation; see 

§ 355.42(b)).

Comply with the release notification requirements of CERCLA section 103 

and its implementing regulations (40 

CFR part 302). Call the NRC at 800– 

424–8802. 

(b) And the substance is on the list of 

CERCLA Hazardous Substances (40 

CFR 302.4) and not on the list of EHSs 

(Appendices A and B of this part).

Notify the LEPC and the SERC, in accordance with §§ 355.40 through 

355.43 of this part (except for a release during transportation or from 

storage incident to transportation; see 

in § 355.42(b)).

Comply with the release notification requirements of CERCLA section 103 

and its implementing regulations (40 

CFR part 302). Call the NRC at 800– 

424–8802. 

(c) And the substance is on the list of 

EHSs (Appendices A and B of this part) 

and not the list of CERCLA Hazardous 

Substances (40 CFR 302.4).

Notify the LEPC and the SERC in accordance with §§ 355.40 through 

355.43 of this part (except for a release during transportation or from 

storage incident to transportation; see 

§ 355.42(b)).

Note: This table only applies to reportable releases, not to exempt releases. 

§ 355.61 How are key words in this 

part defined? 

Animal waste means manure (feces, 

urine, and other excrement produced 

by livestock), digestive emissions, and 

urea. The definition includes animal 

waste when mixed or commingled with 

bedding, compost, feed, soil and other 

typical materials found with animal 

waste. 

CERCLA means the Comprehensive 

Environmental Response, Compensation and Liability Act of 1980, as 

amended. 

CERCLA hazardous substance means a 

substance defined in section 101(14) of 

CERCLA and listed in Table 302.4 of 40 

CFR 302.4. 

Chief Executive Officer of the Tribe 

means the person who is recognized by 

the Bureau of Indian Affairs as the 

chief elected administrative officer of 

the Tribe. 

Environment includes water, air, and 

land and the interrelationship that exists among and between water, air, and 

land and all living things. 


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Environmental Protection Agency § 355.61 

EPCRA means the Emergency Planning and Community Right-To-Know 

Act of 1986. 

Extremely hazardous substance (EHS) 

means a substance listed in Appendices 

A and B of this part. 

Facility means all buildings, equipment, structures, and other stationary 

items that are located on a single site 

or on contiguous or adjacent sites and 

that are owned or operated by the same 

person (or by any person that controls, 

is controlled by, or under common control with, such person). Facility includes manmade structures, as well as 

all natural structures in which chemicals are purposefully placed or removed 

through human means such that it 

functions as a containment structure 

for human use. For purposes of emergency release notification, the term includes motor vehicles, rolling stock, 

and aircraft. 

Farm means a facility on a tract of 

land devoted to the production of crops 

or raising of animals, including fish, 

which produced and sold, or normally 

would have produced and sold, $1,000 or 

more of agricultural products during a 

year. 

Hazardous chemical means any hazardous chemical as defined under 29 

CFR 1910.1200(c), except that this term 

does not include: 

(1) Any food, food additive, color additive, drug, or cosmetic regulated by 

the Food and Drug Administration. 

(2) Any substance present as a solid 

in any manufactured item to the extent exposure to the substance does not 

occur under normal conditions of use. 

(3) Any substance to the extent it is 

used: 

(i) For personal, family, or household 

purposes, or is present in the same 

form and concentration as a product 

packaged for distribution and use by 

the general public. Present in the same 

form and concentration as a product 

packaged for distribution and use by 

the general public means a substance 

packaged in a similar manner and 

present in the same concentration as 

the substance when packaged for use 

by the general public, whether or not it 

is intended for distribution to the general public or used for the same purpose as when it is packaged for use by 

the general public; 

(ii) In a research laboratory or hospital or other medical facility under 

the direct supervision of a technically 

qualified individual; or 

(iii) In routine agricultural operations or is a fertilizer held for sale by 

a retailer to the ultimate customer. 

Indian Country means Indian country 

defined in 18 U.S.C. 1151 as: 

(1) All land within the limits of any 

Indian reservation under the jurisdiction of the United States government, 

notwithstanding the issuance of any 

patent, and, including rights-of-way 

running through the reservation; 

(2) All dependent Indian communities 

within the borders of the United States 

whether within the original or subsequently acquired territory thereof, and 

whether within or without the limits of 

a State; and 

(3) All Indian allotments, the Indian 

titles to which have not been extinguished, including rights-of-way running through the same. 

Indian Tribe or Tribe means those 

Tribes federally recognized by the Secretary of the Interior. 

LEPC means the Local Emergency 

Planning Committee appointed by the 

State Emergency Response Commission. 

Medium or media means the environment (i.e., air, water, land). 

Mixture means, for the purposes of 40 

CFR part 355, a heterogeneous association of substances where the various 

individual substances retain their identities and can usually be separated by 

mechanical means. This definition includes, for the purposes of 40 CFR part 

355, solutions but does not include alloys or amalgams. 

Non-reactive solid means any substance listed in Appendix A or B of this 

part with two threshold planning quantity values, the higher TPQ being 10,000 

pounds. 

Person means any individual, trust, 

firm, joint stock company, corporation 

(including a government corporation), 

partnership, association, State, municipality, commission, political subdivision of a State, or interstate body. 

Reactive solid means any extremely 

hazardous substance denoted with ‘‘a’’ 

in the ‘‘Notes’’ column in Appendix A 

or B of this part. 


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Pt. 355, App. A 40 CFR Ch. I (7–1–13 Edition) 

Release means any spilling, leaking, 

pumping, pouring, emitting, emptying, 

discharging, injecting, escaping, leaching, dumping, or disposing into the environment (including the abandonment 

or discarding of barrels, containers, 

and other closed receptacles) of any 

hazardous chemical, EHS, or CERCLA 

hazardous substance. 

Reportable quantity means, for any 

CERCLA hazardous substance, the 

quantity established in Table 302.4 of 40 

CFR 302.4, for such substance. For any 

EHS, reportable quantity means the 

quantity established in Appendices A 

and B of this part for such substance. 

Unless and until superseded by regulations establishing a reportable quantity for newly listed EHSs or CERCLA 

hazardous substances, a weight of 1 

pound shall be the reportable quantity. 

SERC means the State Emergency 

Response Commission for the State in 

which the facility is located except 

where the facility is located in Indian 

Country, in which case, SERC means 

the Emergency Response Commission 

for the Tribe under whose jurisdiction 

the facility is located. In the absence 

of a SERC for a State or Indian Tribe, 

the Governor or the chief executive officer of the tribe, respectively, shall be 

the SERC. Where there is a cooperative 

agreement between a State and a 

Tribe, the SERC shall be the entity 

identified in the agreement. 

Solution means any aqueous or organic solutions, slurries, viscous solutions, suspensions, emulsions, or 

pastes. 

State means any State of the United 

States, the District of Columbia, the 

Commonwealth of Puerto Rico, Guam, 

American Samoa, the United States 

Virgin Islands, the Northern Mariana 

Islands, any other territory or possession over which the United States has 

jurisdiction and Indian Country. 

Threshold planning quantity means, 

for a substance listed in Appendices A 

and B of this part, the quantity listed 

in the column ‘‘threshold planning 

quantity’’ for that substance. 

[73 FR 65462, Nov. 3, 2008, as amended at 73 

FR 76960, Dec. 18, 2008; 77 FR 16688, Mar. 22, 

2012] 

APPENDIX A TO PART 355—THE LIST OF EXTREMELY HAZARDOUS SUBSTANCES AND

THEIR THRESHOLD PLANNING QUANTITIES

[Alphabetical Order] 

CAS No. Chemical name Notes 

Reportable 

quantity * 

(pounds) 

Threshold planning quantity 

(pounds) 

75–86–5 ................ Acetone Cyanohydrin ................................................. ..................... 10 1,000 

1752–30–3 ............ Acetone Thiosemicarbazide ....................................... ..................... 1,000 1,000/10,000 

107–02–8 .............. Acrolein ....................................................................... ..................... 1 500

79–06–1 ................ Acrylamide .................................................................. f ................... 5,000 1,000/10,000 

107–13–1 .............. Acrylonitrile ................................................................. f ................... 100 10,000 

814–68–6 .............. Acrylyl Chloride ........................................................... d .................. 100 100 

111–69–3 .............. Adiponitrile .................................................................. f ................... 1,000 1,000 

116–06–3 .............. Aldicarb ....................................................................... b .................. 1 100/10,000 

309–00–2 .............. Aldrin ........................................................................... ..................... 1 500/10,000 

107–18–6 .............. Allyl Alcohol ................................................................ ..................... 100 1,000 

107–11–9 .............. Allylamine ................................................................... ..................... 500 500

20859–73–8 .......... Aluminum Phosphide .................................................. a .................. 100 500 

54–62–6 ................ Aminopterin ................................................................. ..................... 500 500/10,000 

78–53–5 ................ Amiton ......................................................................... ..................... 500 500 

3734–97–2 ............ Amiton Oxalate ........................................................... ..................... 100 100/10,000 

7664–41–7 ............ Ammonia ..................................................................... f ................... 100 500 

300–62–9 .............. Amphetamine .............................................................. ..................... 1,000 1,000

62–53–3 ................ Aniline ......................................................................... f ................... 5,000 1,000 

88–05–1 ................ Aniline, 2,4,6-Trimethyl- .............................................. ..................... 500 500 

7783–70–2 ............ Antimony Pentafluoride .............................................. ..................... 500 500 

1397–94–0 ............ Antimycin A ................................................................. b .................. 1,000 1,000/10,000 

86–88–4 ................ ANTU .......................................................................... ..................... 100 500/10,000 

1303–28–2 ............ Arsenic Pentoxide ....................................................... ..................... 1 100/10,000 

1327–53–3 ............ Arsenous Oxide .......................................................... d .................. 1 100/10,000 

7784–34–1 ............ Arsenous Trichloride ................................................... ..................... 1 500 

7784–42–1 ............ Arsine .......................................................................... ..................... 100 100 

2642–71–9 ............ Azinphos-Ethyl ............................................................ ..................... 100 100/10,000 

86–50–0 ................ Azinphos-Methyl ......................................................... ..................... 1 10/10,000

98–87–3 ................ Benzal Chloride .......................................................... ..................... 5,000 500 


wreier-aviles on DSK5TPTVN1PROD with CFR
437 

Environmental Protection Agency Pt. 355, App. A 

[Alphabetical Order] 

CAS No. Chemical name Notes 

Reportable 

quantity * 

(pounds) 

Threshold planning quantity 

(pounds) 

98–16–8 ................ Benzenamine, 3-(Trifluoromethyl)- ............................. ..................... 500 500 

100–14–1 .............. Benzene, 1-(Chloromethyl)-4-Nitro- ........................... ..................... 500 500/10,000 

98–05–5 ................ Benzenearsonic Acid .................................................. ..................... 10 10/10,000 

3615–21–2 ............ Benzimidazole, 4,5-Dichloro-2-(Trifluoromethyl)- ....... c .................. 500 500/10,000 

98–07–7 ................ Benzotrichloride .......................................................... ..................... 10 100 

100–44–7 .............. Benzyl Chloride .......................................................... ..................... 100 500 

140–29–4 .............. Benzyl Cyanide ........................................................... d .................. 500 500 

15271–41–7 .......... Bicyclo[2.2.1]Heptane-2-Carbonitrile, 5-Chloro-6- 

((((Methylamino)Carbonyl)Oxy)Imino)-, (1s-(1- 

alpha,2-beta,4-alpha,5-alpha,6E))-.

..................... 500 500/10,000 

534–07–6 .............. Bis(Chloromethyl) Ketone ........................................... ..................... 10 10/10,000 

4044–65–9 ............ Bitoscanate ................................................................. ..................... 500 500/10,000 

10294–34–5 .......... Boron Trichloride ........................................................ ..................... 500 500 

7637–07–2 ............ Boron Trifluoride ......................................................... ..................... 500 500 

353–42–4 .............. Boron Trifluoride Compound With Methyl Ether (1:1) ..................... 1,000 1,000 

28772–56–7 .......... Bromadiolone .............................................................. ..................... 100 100/10,000 

7726–95–6 ............ Bromine ...................................................................... f ................... 500 500 

1306–19–0 ............ Cadmium Oxide .......................................................... ..................... 100 100/10,000

2223–93–0 ............ Cadmium Stearate ...................................................... b .................. 1,000 1,000/10,000 

7778–44–1 ............ Calcium Arsenate ....................................................... ..................... 1 500/10,000 

8001–35–2 ............ Camphechlor .............................................................. ..................... 1 500/10,000

56–25–7 ................ Cantharidin ................................................................. ..................... 100 100/10,000 

51–83–2 ................ Carbachol Chloride ..................................................... ..................... 500 500/10,000 

26419–73–8 .......... Carbamic Acid, Methyl-, O-(((2,4-Dimethyl-1, 3- 

Dithiolan-2-yl)Methylene)Amino)-.

..................... 100 100/10,000 

1563–66–2 ............ Carbofuran .................................................................. ..................... 10 10/10,000 

75–15–0 ................ Carbon Disulfide ......................................................... f ................... 100 10,000 

786–19–6 .............. Carbophenothion ........................................................ ..................... 500 500 

57–74–9 ................ Chlordane ................................................................... ..................... 1 1,000

470–90–6 .............. Chlorfenvinfos ............................................................. ..................... 500 500 

7782–50–5 ............ Chlorine ...................................................................... ..................... 10 100 

24934–91–6 .......... Chlormephos .............................................................. ..................... 500 500 

999–81–5 .............. Chlormequat Chloride ................................................. d .................. 100 100/10,000 

79–11–8 ................ Chloroacetic Acid ........................................................ ..................... 100 100/10,000 

107–07–3 .............. Chloroethanol ............................................................. ..................... 500 500 

627–11–2 .............. Chloroethyl Chloroformate .......................................... ..................... 1,000 1,000 

67–66–3 ................ Chloroform .................................................................. f ................... 10 10,000 

542–88–1 .............. Chloromethyl Ether ..................................................... d .................. 10 100 

107–30–2 .............. Chloromethyl Methyl Ether ......................................... b .................. 10 100 

3691–35–8 ............ Chlorophacinone ......................................................... ..................... 100 100/10,000 

1982–47–4 ............ Chloroxuron ................................................................ ..................... 500 500/10,000 

21923–23–9 .......... Chlorthiophos .............................................................. d .................. 500 500 

10025–73–7 .......... Chromic Chloride ........................................................ ..................... 1 1/10,000 

62207–76–5 .......... Cobalt, ((2,2′-(1,2-Ethanediylbis (Nitrilomethylidyne)) 

Bis(6-Fluorophenolato))(2-)-N,N′,O,O′)-.

..................... 100 100/10,000 

10210–68–1 .......... Cobalt Carbonyl .......................................................... d .................. 10 10/10,000 

64–86–8 ................ Colchicine ................................................................... d .................. 10 10/10,000 

56–72–4 ................ Coumaphos ................................................................ ..................... 10 100/10,000 

5836–29–3 ............ Coumatetralyl .............................................................. ..................... 500 500/10,000 

95–48–7 ................ Cresol, o- .................................................................... ..................... 100 1,000/10,000 

535–89–7 .............. Crimidine ..................................................................... ..................... 100 100/10,000 

4170–30–3 ............ Crotonaldehyde .......................................................... ..................... 100 1,000 

123–73–9 .............. Crotonaldehyde, (E)- .................................................. ..................... 100 1,000 

506–68–3 .............. Cyanogen Bromide ..................................................... ..................... 1,000 500/10,000 

506–78–5 .............. Cyanogen Iodide ........................................................ ..................... 1,000 1,000/10,000 

2636–26–2 ............ Cyanophos .................................................................. ..................... 1,000 1,000 

675–14–9 .............. Cyanuric Fluoride ....................................................... ..................... 100 100 

66–81–9 ................ Cycloheximide ............................................................ ..................... 100 100/10,000 

108–91–8 .............. Cyclohexylamine ......................................................... f ................... 10,000 10,000

17702–41–9 .......... Decaborane(14) .......................................................... ..................... 500 500/10,000

8065–48–3 ............ Demeton ..................................................................... ..................... 500 500 

919–86–8 .............. Demeton-S-Methyl ...................................................... ..................... 500 500 

10311–84–9 .......... Dialifor ......................................................................... ..................... 100 100/10,000 

19287–45–7 .......... Diborane ..................................................................... ..................... 100 100 

111–44–4 .............. Dichloroethyl ether ...................................................... ..................... 10 10,000 

149–74–6 .............. Dichloromethylphenylsilane ........................................ ..................... 1,000 1,000 

62–73–7 ................ Dichlorvos ................................................................... ..................... 10 1,000 

141–66–2 .............. Dicrotophos ................................................................. ..................... 100 100 

1464–53–5 ............ Diepoxybutane ............................................................ ..................... 10 500 

814–49–3 .............. Diethyl Chlorophosphate ............................................ d .................. 500 500 

71–63–6 ................ Digitoxin ...................................................................... b .................. 100 100/10,000 


wreier-aviles on DSK5TPTVN1PROD with CFR
438 

Pt. 355, App. A 40 CFR Ch. I (7–1–13 Edition) 

[Alphabetical Order] 

CAS No. Chemical name Notes 

Reportable 

quantity * 

(pounds) 

Threshold planning quantity 

(pounds) 

2238–07–5 ............ Diglycidyl Ether ........................................................... ..................... 1,000 1,000 

20830–75–5 .......... Digoxin ........................................................................ d .................. 10 10/10,000 

115–26–4 .............. Dimefox ....................................................................... ..................... 500 500 

60–51–5 ................ Dimethoate ................................................................. ..................... 10 500/10,000 

2524–03–0 ............ Dimethyl Phosphorochloridothioate ............................ ..................... 500 500 

77–78–1 ................ Dimethyl sulfate .......................................................... ..................... 100 500 

75–78–5 ................ Dimethyldichlorosilane ................................................ d .................. 500 500 

57–14–7 ................ Dimethylhydrazine ...................................................... ..................... 10 1,000 

99–98–9 ................ Dimethyl-p-Phenylenediamine .................................... ..................... 10 10/10,000 

644–64–4 .............. Dimetilan ..................................................................... ..................... 1 500/10,000 

534–52–1 .............. Dinitrocresol ................................................................ ..................... 10 10/10,000 

88–85–7 ................ Dinoseb ....................................................................... ..................... 1,000 100/10,000 

1420–07–1 ............ Dinoterb ...................................................................... ..................... 500 500/10,000 

78–34–2 ................ Dioxathion ................................................................... ..................... 500 500 

82–66–6 ................ Diphacinone ................................................................ ..................... 10 10/10,000 

152–16–9 .............. Diphosphoramide, Octamethyl- .................................. ..................... 100 100 

298–04–4 .............. Disulfoton .................................................................... ..................... 1 500 

514–73–8 .............. Dithiazanine Iodide ..................................................... ..................... 500 500/10,000 

541–53–7 .............. Dithiobiuret .................................................................. ..................... 100 100/10,000 

316–42–7 .............. Emetine, Dihydrochloride ........................................... d .................. 1 1/10,000 

115–29–7 .............. Endosulfan .................................................................. ..................... 1 10/10,000 

2778–04–3 ............ Endothion .................................................................... ..................... 500 500/10,000 

72–20–8 ................ Endrin ......................................................................... ..................... 1 500/10,000 

106–89–8 .............. Epichlorohydrin ........................................................... f ................... 100 1,000 

2104–64–5 ............ EPN ............................................................................ ..................... 100 100/10,000 

50–14–6 ................ Ergocalciferol .............................................................. b .................. 1,000 1,000/10,000 

379–79–3 .............. Ergotamine Tartrate .................................................... ..................... 500 500/10,000 

1622–32–8 ............ Ethanesulfonyl Chloride, 2-Chloro- ............................ ..................... 500 500 

10140–87–1 .......... Ethanol, 1,2-Dichloro-, Acetate .................................. ..................... 1,000 1,000 

563–12–2 .............. Ethion .......................................................................... ..................... 10 1,000 

13194–48–4 .......... Ethoprophos ............................................................... ..................... 1,000 1,000 

538–07–8 .............. Ethylbis(2-Chloroethyl)Amine ..................................... d .................. 500 500 

371–62–0 .............. Ethylene Fluorohydrin ................................................. b, d .............. 10 10 

75–21–8 ................ Ethylene Oxide ........................................................... f ................... 10 1,000 

107–15–3 .............. Ethylenediamine ......................................................... ..................... 5,000 10,000

151–56–4 .............. Ethyleneimine ............................................................. ..................... 1 500 

542–90–5 .............. Ethylthiocyanate ......................................................... ..................... 10,000 10,000 

22224–92–6 .......... Fenamiphos ................................................................ ..................... 10 10/10,000

115–90–2 .............. Fensulfothion .............................................................. d .................. 500 500 

4301–50–2 ............ Fluenetil ...................................................................... ..................... 100 100/10,000 

7782–41–4 ............ Fluorine ....................................................................... e .................. 10 500 

640–19–7 .............. Fluoroacetamide ......................................................... ..................... 100 100/10,000 

144–49–0 .............. Fluoroacetic Acid ........................................................ ..................... 10 10/10,000 

359–06–8 .............. Fluoroacetyl Chloride .................................................. b .................. 10 10 

51–21–8 ................ Fluorouracil ................................................................. ..................... 500 500/10,000 

944–22–9 .............. Fonofos ....................................................................... ..................... 500 500 

50–00–0 ................ Formaldehyde ............................................................. f ................... 100 500 

107–16–4 .............. Formaldehyde Cyanohydrin ....................................... d .................. 1,000 1,000 

23422–53–9 .......... Formetanate Hydrochloride ........................................ d .................. 100 500/10,000 

2540–82–1 ............ Formothion .................................................................. ..................... 100 100 

17702–57–7 .......... Formparanate ............................................................. ..................... 100 100/10,000 

21548–32–3 .......... Fosthietan ................................................................... ..................... 500 500 

3878–19–1 ............ Fuberidazole ............................................................... ..................... 100 100/10,000 

110–00–9 .............. Furan .......................................................................... ..................... 100 500 

13450–90–3 .......... Gallium Trichloride ...................................................... ..................... 500 500/10,000 

77–47–4 ................ Hexachlorocyclopentadiene ........................................ d .................. 10 100 

4835–11–4 ............ Hexamethylenediamine, N,N′-Dibutyl- ....................... ..................... 500 500 

302–01–2 .............. Hydrazine .................................................................... ..................... 1 1,000

74–90–8 ................ Hydrocyanic Acid ........................................................ ..................... 10 100 

7647–01–0 ............ Hydrogen Chloride (gas only) .................................... f ................... 5,000 500 

7664–39–3 ............ Hydrogen Fluoride ...................................................... ..................... 100 100 

7722–84–1 ............ Hydrogen Peroxide (Conc > 52%) ............................. f ................... 1,000 1,000 

7783–07–5 ............ Hydrogen Selenide ..................................................... ..................... 10 10 

7783–06–4 ............ Hydrogen Sulfide ........................................................ f ................... 100 500 

123–31–9 .............. Hydroquinone ............................................................. f ................... 100 500/10,000 

13463–40–6 .......... Iron, Pentacarbonyl- ................................................... ..................... 100 100 

297–78–9 .............. Isobenzan ................................................................... ..................... 100 100/10,000 

78–82–0 ................ Isobutyronitrile ............................................................ d .................. 1,000 1,000 

102–36–3 .............. Isocyanic Acid, 3,4-Dichlorophenyl Ester ................... ..................... 500 500/10,000 

465–73–6 .............. Isodrin ......................................................................... ..................... 1 100/10,000 

55–91–4 ................ Isofluorphate ............................................................... b .................. 100 100 


wreier-aviles on DSK5TPTVN1PROD with CFR
439 

Environmental Protection Agency Pt. 355, App. A 

[Alphabetical Order] 

CAS No. Chemical name Notes 

Reportable 

quantity * 

(pounds) 

Threshold planning quantity 

(pounds) 

4098–71–9 ............ Isophorone Diisocyanate ............................................ g .................. 500 500 

108–23–6 .............. Isopropyl Chloroformate ............................................. ..................... 1,000 1,000 

119–38–0 .............. Isopropylmethyl-pyrazolyl Dimethylcarbamate ........... ..................... 100 500 

78–97–7 ................ Lactonitrile .................................................................. ..................... 1,000 1,000 

21609–90–5 .......... Leptophos ................................................................... ..................... 500 500/10,000 

541–25–3 .............. Lewisite ....................................................................... b, d .............. 10 10 

58–89–9 ................ Lindane ....................................................................... ..................... 1 1,000/10,000 

7580–67–8 ............ Lithium Hydride ........................................................... a .................. 100 100 

109–77–3 .............. Malononitrile ............................................................... ..................... 1,000 500/10,000 

12108–13–3 .......... Manganese, Tricarbonyl Methylcyclopentadienyl ....... d .................. 100 100 

51–75–2 ................ Mechlorethamine ........................................................ b .................. 10 10 

950–10–7 .............. Mephosfolan ............................................................... ..................... 500 500 

1600–27–7 ............ Mercuric Acetate ......................................................... ..................... 500 500/10,000 

7487–94–7 ............ Mercuric Chloride ....................................................... ..................... 500 500/10,000 

21908–53–2 .......... Mercuric Oxide ........................................................... ..................... 500 500/10,000 

10476–95–6 .......... Methacrolein Diacetate ............................................... ..................... 1,000 1,000 

760–93–0 .............. Methacrylic Anhydride ................................................ ..................... 500 500 

126–98–7 .............. Methacrylonitrile .......................................................... d .................. 1,000 500 

920–46–7 .............. Methacryloyl Chloride ................................................. ..................... 100 100 

30674–80–7 .......... Methacryloyloxyethyl Isocyanate ................................ d .................. 100 100 

10265–92–6 .......... Methamidophos .......................................................... ..................... 100 100/10,000 

558–25–8 .............. Methanesulfonyl Fluoride ........................................... ..................... 1,000 1,000 

950–37–8 .............. Methidathion ............................................................... ..................... 500 500/10,000 

2032–65–7 ............ Methiocarb .................................................................. ..................... 10 500/10,000 

16752–77–5 .......... Methomyl .................................................................... d .................. 100 500/10,000 

151–38–2 .............. Methoxyethylmercuric Acetate ................................... ..................... 500 500/10,000 

80–63–7 ................ Methyl 2-Chloroacrylate .............................................. ..................... 500 500 

74–83–9 ................ Methyl Bromide ........................................................... f ................... 1,000 1,000

79–22–1 ................ Methyl Chloroformate ................................................. d .................. 1,000 500 

60–34–4 ................ Methyl Hydrazine ........................................................ ..................... 10 500 

624–83–9 .............. Methyl Isocyanate ....................................................... ..................... 10 500 

556–61–6 .............. Methyl Isothiocyanate ................................................. a .................. 500 500 

74–93–1 ................ Methyl Mercaptan ....................................................... f ................... 100 500 

3735–23–7 ............ Methyl Phenkapton ..................................................... ..................... 500 500 

676–97–1 .............. Methyl Phosphonic Dichloride .................................... a .................. 100 100 

556–64–9 .............. Methyl Thiocyanate .................................................... ..................... 10,000 10,000 

78–94–4 ................ Methyl Vinyl Ketone .................................................... ..................... 10 10 

502–39–6 .............. Methylmercuric Dicyanamide ..................................... ..................... 500 500/10,000 

75–79–6 ................ Methyltrichlorosilane ................................................... d .................. 500 500 

1129–41–5 ............ Metolcarb .................................................................... ..................... 1,000 100/10,000 

7786–34–7 ............ Mevinphos .................................................................. ..................... 10 500 

315–18–4 .............. Mexacarbate ............................................................... d .................. 1,000 500/10,000 

50–07–7 ................ Mitomycin C ................................................................ ..................... 10 500/10,000 

6923–22–4 ............ Monocrotophos ........................................................... ..................... 10 10/10,000 

2763–96–4 ............ Muscimol ..................................................................... ..................... 1,000 500/10,000 

505–60–2 .............. Mustard Gas ............................................................... d .................. 500 500 

13463–39–3 .......... Nickel Carbonyl .......................................................... ..................... 10 1 

54–11–5 ................ Nicotine ....................................................................... b .................. 100 100 

65–30–5 ................ Nicotine Sulfate .......................................................... ..................... 100 100/10,000 

7697–37–2 ............ Nitric Acid ................................................................... ..................... 1,000 1,000 

10102–43–9 .......... Nitric Oxide ................................................................. b .................. 10 100 

98–95–3 ................ Nitrobenzene .............................................................. f ................... 1,000 10,000 

1122–60–7 ............ Nitrocyclohexane ........................................................ ..................... 500 500 

10102–44–0 .......... Nitrogen Dioxide ......................................................... ..................... 10 100 

62–75–9 ................ Nitrosodimethylamine ................................................. d .................. 10 1,000 

991–42–4 .............. Norbormide ................................................................. ..................... 100 100/10,000 

.......................... Organorhodium Complex (PMN–82–147) .................. ..................... 10 10/10,000 

630–60–4 .............. Ouabain ...................................................................... b .................. 100 100/10,000 

23135–22–0 .......... Oxamyl ........................................................................ ..................... 100 100/10,000 

78–71–7 ................ Oxetane, 3,3-Bis(Chloromethyl)- ................................ ..................... 500 500 

2497–07–6 ............ Oxydisulfoton .............................................................. d .................. 500 500 

10028–15–6 .......... Ozone ......................................................................... ..................... 100 100 

1910–42–5 ............ Paraquat Dichloride .................................................... ..................... 10 10/10,000 

2074–50–2 ............ Paraquat Methosulfate ............................................... ..................... 10 10/10,000 

56–38–2 ................ Parathion .................................................................... b .................. 10 100 

298–00–0 .............. Parathion-Methyl ......................................................... b .................. 100 100/10,000 

12002–03–8 .......... Paris Green ................................................................ ..................... 1 500/10,000 

19624–22–7 .......... Pentaborane ............................................................... ..................... 500 500 

2570–26–5 ............ Pentadecylamine ........................................................ ..................... 100 100/10,000

79–21–0 ................ Peracetic Acid ............................................................. ..................... 500 500 

594–42–3 .............. Perchloromethylmercaptan ......................................... ..................... 100 500 


wreier-aviles on DSK5TPTVN1PROD with CFR
440 

Pt. 355, App. A 40 CFR Ch. I (7–1–13 Edition) 

[Alphabetical Order] 

CAS No. Chemical name Notes 

Reportable 

quantity * 

(pounds) 

Threshold planning quantity 

(pounds) 

108–95–2 .............. Phenol ......................................................................... ..................... 1,000 500/10,000 

4418–66–0 ............ Phenol, 2,2′-Thiobis(4-Chloro-6-Methyl)- ................... ..................... 100 100/10,000 

64–00–6 ................ Phenol, 3-(1-Methylethyl)-, Methylcarbamate ............ ..................... 10 500/10,000 

58–36–6 ................ Phenoxarsine, 10,10′-Oxydi- ...................................... ..................... 500 500/10,000 

696–28–6 .............. Phenyl Dichloroarsine ................................................. d .................. 1 500 

59–88–1 ................ Phenylhydrazine Hydrochloride .................................. ..................... 1,000 1,000/10,000 

62–38–4 ................ Phenylmercury Acetate .............................................. ..................... 100 500/10,000 

2097–19–0 ............ Phenylsilatrane ........................................................... d .................. 100 100/10,000 

103–85–5 .............. Phenylthiourea ............................................................ ..................... 100 100/10,000 

298–02–2 .............. Phorate ....................................................................... ..................... 10 10 

4104–14–7 ............ Phosacetim ................................................................. ..................... 100 100/10,000 

947–02–4 .............. Phosfolan .................................................................... ..................... 100 100/10,000 

75–44–5 ................ Phosgene .................................................................... f ................... 10 10 

13171–21–6 .......... Phosphamidon ............................................................ ..................... 100 100 

7803–51–2 ............ Phosphine ................................................................... ..................... 100 500 

2703–13–1 ............ Phosphonothioic Acid, Methyl-, O-Ethyl O-(4- 

(Methylthio) Phenyl) Ester.

..................... 500 500 

50782–69–9 .......... Phosphonothioic Acid, Methyl-, S-(2- 

(Bis(1Methylethyl)Amino)Ethyl) O-Ethyl Ester.

..................... 100 100 

2665–30–7 ............ Phosphonothioic Acid, Methyl-, O-(4-Nitrophenyl) OPhenyl Ester...................... 500 500 

3254–63–5 ............ Phosphoric Acid, Dimethyl 4-(Methylthio)Phenyl 

Ester.

..................... 500 500 

2587–90–8 ............ Phosphorothioic Acid, O,O-Dimethyl-S-(2-Methylthio) 

Ethyl Ester.

b, c .............. 500 500 

7723–14–0 ............ Phosphorus ................................................................. a, d .............. 1 100 

10025–87–3 .......... Phosphorus Oxychloride ............................................ ..................... 1,000 500 

10026–13–8 .......... Phosphorus Pentachloride ......................................... a .................. 500 500 

7719–12–2 ............ Phosphorus Trichloride ............................................... ..................... 1,000 1,000 

57–47–6 ................ Physostigmine ............................................................ ..................... 100 100/10,000 

57–64–7 ................ Physostigmine, Salicylate (1:1) .................................. ..................... 100 100/10,000 

124–87–8 .............. Picrotoxin .................................................................... ..................... 500 500/10,000 

110–89–4 .............. Piperidine .................................................................... ..................... 1,000 1,000 

23505–41–1 .......... Pirimifos-Ethyl ............................................................. ..................... 1,000 1,000 

10124–50–2 .......... Potassium Arsenite ..................................................... ..................... 1 500/10,000 

151–50–8 .............. Potassium Cyanide ..................................................... a .................. 10 100 

506–61–6 .............. Potassium Silver Cyanide .......................................... a .................. 1 500 

2631–37–0 ............ Promecarb .................................................................. d .................. 1,000 500/10,000 

106–96–7 .............. Propargyl Bromide ...................................................... ..................... 10 10 

57–57–8 ................ Propiolactone, Beta- ................................................... ..................... 10 500 

107–12–0 .............. Propionitrile ................................................................. ..................... 10 500

542–76–7 .............. Propionitrile, 3-Chloro- ................................................ ..................... 1,000 1,000 

70–69–9 ................ Propiophenone, 4-Amino- ........................................... c .................. 100 100/10,000 

109–61–5 .............. Propyl Chloroformate .................................................. ..................... 500 500 

75–56–9 ................ Propylene Oxide ......................................................... f ................... 100 10,000 

75–55–8 ................ Propyleneimine ........................................................... ..................... 1 10,000 

2275–18–5 ............ Prothoate .................................................................... ..................... 100 100/10,000 

129–00–0 .............. Pyrene ........................................................................ b .................. 5,000 1,000/10,000 

140–76–1 .............. Pyridine, 2-Methyl-5-Vinyl- ......................................... ..................... 500 500 

504–24–5 .............. Pyridine, 4-Amino- ...................................................... d .................. 1,000 500/10,000 

1124–33–0 ............ Pyridine, 4-Nitro-,l-Oxide ............................................ ..................... 500 500/10,000 

53558–25–1 .......... Pyriminil ...................................................................... d .................. 100 100/10,000 

14167–18–1 .......... Salcomine ................................................................... ..................... 500 500/10,000 

107–44–8 .............. Sarin ........................................................................... d .................. 10 10 

7783–00–8 ............ Selenious Acid ............................................................ ..................... 10 1,000/10,000 

7791–23–3 ............ Selenium Oxychloride ................................................. ..................... 500 500 

563–41–7 .............. Semicarbazide Hydrochloride ..................................... ..................... 1,000 1,000/10,000 

3037–72–7 ............ Silane, (4-Aminobutyl)Diethoxymethyl- ...................... ..................... 1,000 1,000 

7631–89–2 ............ Sodium Arsenate ........................................................ ..................... 1 1,000/10,000

7784–46–5 ............ Sodium Arsenite ......................................................... ..................... 1 500/10,000 

26628–22–8 .......... Sodium Azide (Na(N3)) ............................................... a .................. 1,000 500 

124–65–2 .............. Sodium Cacodylate .................................................... ..................... 100 100/10,000 

143–33–9 .............. Sodium Cyanide (Na(CN)) ......................................... a .................. 10 100 

62–74–8 ................ Sodium Fluoroacetate ................................................ ..................... 10 10/10,000 

13410–01–0 .......... Sodium Selenate ........................................................ ..................... 100 100/10,000 

10102–18–8 .......... Sodium Selenite ......................................................... d .................. 100 100/10,000 

10102–20–2 .......... Sodium Tellurite .......................................................... ..................... 500 500/10,000 

900–95–8 .............. Stannane, Acetoxytriphenyl- ....................................... c .................. 500 500/10,000 

57–24–9 ................ Strychnine ................................................................... b .................. 10 100/10,000 

60–41–3 ................ Strychnine Sulfate ...................................................... ..................... 10 100/10,000 

3689–24–5 ............ Sulfotep ....................................................................... ..................... 100 500 


wreier-aviles on DSK5TPTVN1PROD with CFR
441 

Environmental Protection Agency Pt. 355, App. A 

[Alphabetical Order] 

CAS No. Chemical name Notes 

Reportable 

quantity * 

(pounds) 

Threshold planning quantity 

(pounds) 

3569–57–1 ............ Sulfoxide, 3-Chloropropyl Octyl .................................. ..................... 500 500 

7446–09–5 ............ Sulfur Dioxide ............................................................. f ................... 500 500 

7783–60–0 ............ Sulfur Tetrafluoride ..................................................... ..................... 100 100 

7446–11–9 ............ Sulfur Trioxide ............................................................ a .................. 100 100 

7664–93–9 ............ Sulfuric Acid ................................................................ ..................... 1,000 1,000 

77–81–6 ................ Tabun .......................................................................... b, d .............. 10 10 

7783–80–4 ............ Tellurium Hexafluoride ................................................ e .................. 100 100 

107–49–3 .............. TEPP .......................................................................... ..................... 10 100

13071–79–9 .......... Terbufos ...................................................................... d .................. 100 100 

78–00–2 ................ Tetraethyllead ............................................................. b .................. 10 100 

597–64–8 .............. Tetraethyltin ................................................................ b .................. 100 100 

75–74–1 ................ Tetramethyllead .......................................................... b, f ............... 100 100 

509–14–8 .............. Tetranitromethane ...................................................... ..................... 10 500 

10031–59–1 .......... Thallium Sulfate .......................................................... d .................. 100 100/10,000

6533–73–9 ............ Thallous Carbonate .................................................... b, d .............. 100 100/10,000 

7791–12–0 ............ Thallous Chloride ........................................................ b, d .............. 100 100/10,000 

2757–18–8 ............ Thallous Malonate ...................................................... b, d .............. 100 100/10,000 

7446–18–6 ............ Thallous Sulfate .......................................................... ..................... 100 100/10,000 

2231–57–4 ............ Thiocarbazide ............................................................. ..................... 1,000 1,000/10,000 

39196–18–4 .......... Thiofanox .................................................................... ..................... 100 100/10,000 

297–97–2 .............. Thionazin .................................................................... ..................... 100 500

108–98–5 .............. Thiophenol .................................................................. ..................... 100 500 

79–19–6 ................ Thiosemicarbazide ...................................................... ..................... 100 100/10,000 

5344–82–1 ............ Thiourea, (2-Chlorophenyl)- ....................................... ..................... 100 100/10,000 

614–78–8 .............. Thiourea, (2-Methylphenyl)- ....................................... ..................... 500 500/10,000 

7550–45–0 ............ Titanium Tetrachloride ................................................ ..................... 1,000 100 

584–84–9 .............. Toluene 2,4-Diisocyanate ........................................... ..................... 100 500 

91–08–7 ................ Toluene 2,6-Diisocyanate ........................................... ..................... 100 100 

110–57–6 .............. Trans-1,4-Dichlorobutene ........................................... ..................... 500 500 

1031–47–6 ............ Triamiphos .................................................................. ..................... 500 500/10,000 

24017–47–8 .......... Triazofos ..................................................................... ..................... 500 500 

76–02–8 ................ Trichloroacetyl Chloride .............................................. ..................... 500 500 

115–21–9 .............. Trichloroethylsilane ..................................................... d .................. 500 500 

327–98–0 .............. Trichloronate ............................................................... e .................. 500 500 

98–13–5 ................ Trichlorophenylsilane .................................................. d .................. 500 500 

1558–25–4 ............ Trichloro(Chloromethyl)Silane .................................... ..................... 100 100 

27137–85–5 .......... Trichloro(Dichlorophenyl) Silane ................................ ..................... 500 500 

998–30–1 .............. Triethoxysilane ............................................................ ..................... 500 500 

75–77–4 ................ Trimethylchlorosilane .................................................. ..................... 1,000 1,000 

824–11–3 .............. Trimethylolpropane Phosphite .................................... d .................. 100 100/10,000 

1066–45–1 ............ Trimethyltin Chloride ................................................... ..................... 500 500/10,000 

639–58–7 .............. Triphenyltin Chloride ................................................... ..................... 500 500/10,000 

555–77–1 .............. Tris(2-Chloroethyl)Amine ............................................ d .................. 100 100 

2001–95–8 ............ Valinomycin ................................................................ b .................. 1,000 1,000/10,000 

1314–62–1 ............ Vanadium Pentoxide .................................................. ..................... 1,000 100/10,000 

108–05–4 .............. Vinyl Acetate Monomer .............................................. f ................... 5,000 1,000 

81–81–2 ................ Warfarin ...................................................................... ..................... 100 500/10,000 

129–06–6 .............. Warfarin Sodium ......................................................... d .................. 100 100/10,000

28347–13–9 .......... Xylylene Dichloride ..................................................... ..................... 100 100/10,000

58270–08–9 .......... Zinc, Dichloro(4,4-Dimethyl5((((Methylamino)Carbonyl) 

Oxy)Imino)Pentanenitrile)-, (T-4)-.

..................... 100 100/10,000 

1314–84–7 ............ Zinc Phosphide ........................................................... a .................. 100 500 

* Only the statutory or final RQ is shown. For more information, see 40 CFR 355.61. 

Notes: 

a. This material is a reactive solid. The TPQ does not default to 10,000 pounds for non-powder, non-molten, non-solution form. 

b. The calculated TPQ changed after technical review as described in a technical support document for the final rule, April 22,

1987. 

c. Chemicals added by final rule, April 22, 1987. 

d. Revised TPQ based on new or re-evaluated toxicity data, April 22, 1987. 

e. The TPQ was revised due to calculation error, April 22, 1987. 

f. Chemicals on the original list that do not meet toxicity criteria but because of their acute lethality, high production volume 

and known risk are considered chemicals of concern (‘‘Other chemicals’’), November 17, 1986 and February 15, 1990. 

g. The TPQ was recalculated (September 8, 2003) since it was mistakenly calculated in the April 22, 1987 final rule under the 

wrong assumption that this chemical is a reactive solid, when in fact it is a liquid. RQ for this chemical was adjusted on September 11, 2006. 


wreier-aviles on DSK5TPTVN1PROD with CFR
442 

Pt. 355, App. B 40 CFR Ch. I (7–1–13 Edition) 

APPENDIX B TO PART 355—THE LIST OF EXTREMELY HAZARDOUS SUBSTANCES AND

THEIR THRESHOLD PLANNING QUANTITIES

[CAS Number Order] 

CAS No. Chemical name Notes 

Reportable 

quantity * 

(pounds) 

Threshold planning quantity 

(pounds) 

0 ............................ Organorhodium Complex (PMN–82–147) .................. ..................... 10 10/10,000 

50–00–0 ................ Formaldehyde ............................................................. f ................... 100 500 

50–07–7 ................ Mitomycin C ................................................................ ..................... 10 500/10,000 

50–14–6 ................ Ergocalciferol .............................................................. b .................. 1,000 1,000/10,000 

51–21–8 ................ Fluorouracil ................................................................. ..................... 500 500/10,000 

51–75–2 ................ Mechlorethamine ........................................................ b .................. 10 10 

51–83–2 ................ Carbachol Chloride ..................................................... ..................... 500 500/10,000 

54–11–5 ................ Nicotine ....................................................................... b .................. 100 100 

54–62–6 ................ Aminopterin ................................................................. ..................... 500 500/10,000 

55–91–4 ................ Isofluorphate ............................................................... b .................. 100 100 

56–25–7 ................ Cantharidin ................................................................. ..................... 100 100/10,000 

56–38–2 ................ Parathion .................................................................... b .................. 10 100 

56–72–4 ................ Coumaphos ................................................................ ..................... 10 100/10,000 

57–14–7 ................ Dimethylhydrazine ...................................................... ..................... 10 1,000 

57–24–9 ................ Strychnine ................................................................... b .................. 10 100/10,000 

57–47–6 ................ Physostigmine ............................................................ ..................... 100 100/10,000 

57–57–8 ................ Propiolactone, Beta- ................................................... ..................... 10 500 

57–64–7 ................ Physostigmine, Salicylate (1:1) .................................. ..................... 100 100/10,000 

57–74–9 ................ Chlordane ................................................................... ..................... 1 1,000

58–36–6 ................ Phenoxarsine, 10,10′-Oxydi- ...................................... ..................... 500 500/10,000 

58–89–9 ................ Lindane ....................................................................... ..................... 1 1,000/10,000 

59–88–1 ................ Phenylhydrazine Hydrochloride .................................. ..................... 1,000 1,000/10,000 

60–34–4 ................ Methyl Hydrazine ........................................................ ..................... 10 500 

60–41–3 ................ Strychnine sulfate ....................................................... ..................... 10 100/10,000 

60–51–5 ................ Dimethoate ................................................................. ..................... 10 500/10,000 

62–38–4 ................ Phenylmercury Acetate .............................................. ..................... 100 500/10,000 

62–53–3 ................ Aniline ......................................................................... f ................... 5,000 1,000 

62–73–7 ................ Dichlorvos ................................................................... ..................... 10 1,000 

62–74–8 ................ Sodium Fluoroacetate ................................................ ..................... 10 10/10,000 

62–75–9 ................ Nitrosodimethylamine ................................................. d .................. 10 1,000 

64–00–6 ................ Phenol, 3-(1-Methylethyl)-, Methylcarbamate ............ ..................... 10 500/10,000 

64–86–8 ................ Colchicine ................................................................... d .................. 10 10/10,000 

65–30–5 ................ Nicotine sulfate ........................................................... ..................... 100 100/10,000 

66–81–9 ................ Cycloheximide ............................................................ ..................... 100 100/10,000 

67–66–3 ................ Chloroform .................................................................. f ................... 10 10,000 

70–69–9 ................ Propiophenone, 4-Amino- ........................................... c .................. 100 100/10,000 

71–63–6 ................ Digitoxin ...................................................................... b .................. 100 100/10,000 

72–20–8 ................ Endrin ......................................................................... ..................... 1 500/10,000 

74–83–9 ................ Methyl Bromide ........................................................... f ................... 1,000 1,000

74–90–8 ................ Hydrocyanic Acid ........................................................ ..................... 10 100 

74–93–1 ................ Methyl Mercaptan ....................................................... f ................... 100 500 

75–15–0 ................ Carbon Disulfide ......................................................... f ................... 100 10,000 

75–21–8 ................ Ethylene Oxide ........................................................... f ................... 10 1,000 

75–44–5 ................ Phosgene .................................................................... f ................... 10 10 

75–55–8 ................ Propyleneimine ........................................................... ..................... 1 10,000 

75–56–9 ................ Propylene Oxide ......................................................... f ................... 100 10,000 

75–74–1 ................ Tetramethyllead .......................................................... b, f ............... 100 100 

75–77–4 ................ Trimethylchlorosilane .................................................. ..................... 1,000 1,000 

75–78–5 ................ Dimethyldichlorosilane ................................................ d .................. 500 500 

75–79–6 ................ Methyltrichlorosilane ................................................... d .................. 500 500 

75–86–5 ................ Acetone Cyanohydrin ................................................. ..................... 10 1,000 

76–02–8 ................ Trichloroacetyl Chloride .............................................. ..................... 500 500 

77–47–4 ................ Hexachlorocyclopentadiene ........................................ d .................. 10 100 

77–78–1 ................ Dimethyl Sulfate ......................................................... ..................... 100 500 

77–81–6 ................ Tabun .......................................................................... b, d .............. 10 10 

78–00–2 ................ Tetraethyllead ............................................................. b .................. 10 100 

78–34–2 ................ Dioxathion ................................................................... ..................... 500 500 

78–53–5 ................ Amiton ......................................................................... ..................... 500 500 

78–71–7 ................ Oxetane, 3,3-Bis(Chloromethyl)- ................................ ..................... 500 500 

78–82–0 ................ Isobutyronitrile ............................................................ d .................. 1,000 1,000 

78–94–4 ................ Methyl Vinyl Ketone .................................................... ..................... 10 10 

78–97–7 ................ Lactonitrile .................................................................. ..................... 1,000 1,000 

79–06–1 ................ Acrylamide .................................................................. f ................... 5,000 1,000/10,000 

79–11–8 ................ Chloroacetic Acid ........................................................ ..................... 100 100/10,000 

79–19–6 ................ Thiosemicarbazide ...................................................... ..................... 100 100/10,000 

79–21–0 ................ Peracetic Acid ............................................................. ..................... 500 500 

79–22–1 ................ Methyl Chloroformate ................................................. d .................. 1,000 500 

80–63–7 ................ Methyl 2-Chloroacrylate .............................................. ..................... 500 500 


wreier-aviles on DSK5TPTVN1PROD with CFR
443 

Environmental Protection Agency Pt. 355, App. B 

[CAS Number Order] 

CAS No. Chemical name Notes 

Reportable 

quantity * 

(pounds) 

Threshold planning quantity 

(pounds) 

81–81–2 ................ Warfarin ...................................................................... ..................... 100 500/10,000 

82–66–6 ................ Diphacinone ................................................................ ..................... 10 10/10,000 

86–50–0 ................ Azinphos-Methyl ......................................................... ..................... 1 10/10,000

86–88–4 ................ ANTU .......................................................................... ..................... 100 500/10,000 

88–05–1 ................ Aniline, 2,4,6-Trimethyl- .............................................. ..................... 500 500 

88–85–7 ................ Dinoseb ....................................................................... ..................... 1,000 100/10,000 

91–08–7 ................ Toluene 2,6-Diisocyanate ........................................... ..................... 100 100 

95–48–7 ................ Cresol, o- .................................................................... ..................... 100 1,000/10,000 

98–05–5 ................ Benzenearsonic Acid .................................................. ..................... 10 10/10,000 

98–07–7 ................ Benzotrichloride .......................................................... ..................... 10 100 

98–13–5 ................ Trichlorophenylsilane .................................................. d .................. 500 500 

98–16–8 ................ Benzenamine, 3-(Trifluoromethyl)- ............................. ..................... 500 500 

98–87–3 ................ Benzal Chloride .......................................................... ..................... 5,000 500 

98–95–3 ................ Nitrobenzene .............................................................. f ................... 1,000 10,000 

99–98–9 ................ Dimethyl-p-Phenylenediamine .................................... ..................... 10 10/10,000 

100–14–1 .............. Benzene, 1-(Chloromethyl)-4-Nitro- ........................... ..................... 500 500/10,000 

100–44–7 .............. Benzyl Chloride .......................................................... ..................... 100 500 

102–36–3 .............. Isocyanic Acid, 3,4-Dichlorophenyl Ester ................... ..................... 500 500/10,000 

103–85–5 .............. Phenylthiourea ............................................................ ..................... 100 100/10,000 

106–89–8 .............. Epichlorohydrin ........................................................... f ................... 100 1,000 

106–96–7 .............. Propargyl Bromide ...................................................... ..................... 10 10 

107–02–8 .............. Acrolein ....................................................................... ..................... 1 500

107–07–3 .............. Chloroethanol ............................................................. ..................... 500 500 

107–11–9 .............. Allylamine ................................................................... ..................... 500 500

107–12–0 .............. Propionitrile ................................................................. ..................... 10 500

107–13–1 .............. Acrylonitrile ................................................................. f ................... 100 10,000 

107–15–3 .............. Ethylenediamine ......................................................... ..................... 5,000 10,000

107–16–4 .............. Formaldehyde Cyanohydrin ....................................... d .................. 1,000 1,000 

107–18–6 .............. Allyl Alcohol ................................................................ ..................... 100 1,000 

107–30–2 .............. Chloromethyl Methyl Ether ......................................... b .................. 10 100 

107–44–8 .............. Sarin ........................................................................... d .................. 10 10 

107–49–3 .............. TEPP .......................................................................... ..................... 10 100

108–05–4 .............. Vinyl Acetate Monomer .............................................. f ................... 5,000 1,000 

108–23–6 .............. Isopropyl Chloroformate ............................................. ..................... 1,000 1,000 

108–91–8 .............. Cyclohexylamine ......................................................... f ................... 10,000 10,000

108–95–2 .............. Phenol ......................................................................... ..................... 1,000 500/10,000 

108–98–5 .............. Thiophenol .................................................................. ..................... 100 500 

109–61–5 .............. Propyl Chloroformate .................................................. ..................... 500 500 

109–77–3 .............. Malononitrile ............................................................... ..................... 1,000 500/10,000 

110–00–9 .............. Furan .......................................................................... ..................... 100 500 

110–57–6 .............. Trans-1,4-Dichlorobutene ........................................... ..................... 500 500 

110–89–4 .............. Piperidine .................................................................... ..................... 1,000 1,000 

111–44–4 .............. Dichloroethyl Ether ..................................................... ..................... 10 10,000 

111–69–3 .............. Adiponitrile .................................................................. f ................... 1,000 1,000 

115–21–9 .............. Trichloroethylsilane ..................................................... d .................. 500 500 

115–26–4 .............. Dimefox ....................................................................... ..................... 500 500 

115–29–7 .............. Endosulfan .................................................................. ..................... 1 10/10,000 

115–90–2 .............. Fensulfothion .............................................................. d .................. 500 500 

116–06–3 .............. Aldicarb ....................................................................... b .................. 1 100/10,000 

119–38–0 .............. Isopropylmethyl-pyrazolyl Dimethylcarbamate ........... ..................... 100 500 

123–31–9 .............. Hydroquinone ............................................................. f ................... 100 500/10,000 

123–73–9 .............. Crotonaldehyde, (E)- .................................................. ..................... 100 1,000 

124–65–2 .............. Sodium Cacodylate .................................................... ..................... 100 100/10,000 

124–87–8 .............. Picrotoxin .................................................................... ..................... 500 500/10,000 

126–98–7 .............. Methacrylonitrile .......................................................... d .................. 1,000 500 

129–00–0 .............. Pyrene ........................................................................ b .................. 5,000 1,000/10,000 

129–06–6 .............. Warfarin Sodium ......................................................... d .................. 100 100/10,000

140–29–4 .............. Benzyl Cyanide ........................................................... d .................. 500 500 

140–76–1 .............. Pyridine, 2-Methyl-5-Vinyl- ......................................... ..................... 500 500 

141–66–2 .............. Dicrotophos ................................................................. ..................... 100 100 

143–33–9 .............. Sodium Cyanide (Na(CN)) ......................................... a .................. 10 100 

144–49–0 .............. Fluoroacetic Acid ........................................................ ..................... 10 10/10,000 

149–74–6 .............. Dichloromethylphenylsilane ........................................ ..................... 1,000 1,000 

151–38–2 .............. Methoxyethylmercuric Acetate ................................... ..................... 500 500/10,000 

151–50–8 .............. Potassium Cyanide ..................................................... a .................. 10 100 

151–56–4 .............. Ethyleneimine ............................................................. ..................... 1 500 

152–16–9 .............. Diphosphoramide, Octamethyl- .................................. ..................... 100 100 

297–78–9 .............. Isobenzan ................................................................... ..................... 100 100/10,000 

297–97–2 .............. Thionazin .................................................................... ..................... 100 500

298–00–0 .............. Parathion-Methyl ......................................................... b .................. 100 100/10,000 

298–02–2 .............. Phorate ....................................................................... ..................... 10 10 


wreier-aviles on DSK5TPTVN1PROD with CFR
444 

Pt. 355, App. B 40 CFR Ch. I (7–1–13 Edition) 

[CAS Number Order] 

CAS No. Chemical name Notes 

Reportable 

quantity * 

(pounds) 

Threshold planning quantity 

(pounds) 

298–04–4 .............. Disulfoton .................................................................... ..................... 1 500 

300–62–9 .............. Amphetamine .............................................................. ..................... 1,000 1,000

302–01–2 .............. Hydrazine .................................................................... ..................... 1 1,000

309–00–2 .............. Aldrin ........................................................................... ..................... 1 500/10,000 

315–18–4 .............. Mexacarbate ............................................................... ..................... 1,000 500/10,000 

316–42–7 .............. Emetine, Dihydrochloride ........................................... d .................. 1 1/10,000 

327–98–0 .............. Trichloronate ............................................................... e .................. 500 500 

353–42–4 .............. Boron Trifluoride Compound With Methyl Ether (1:1) ..................... 1,000 1,000 

359–06–8 .............. Fluoroacetyl Chloride .................................................. b .................. 10 10 

371–62–0 .............. Ethylene Fluorohydrin ................................................. b, d .............. 10 10 

379–79–3 .............. Ergotamine Tartrate .................................................... ..................... 500 500/10,000 

465–73–6 .............. Isodrin ......................................................................... ..................... 1 100/10,000 

470–90–6 .............. Chlorfenvinfos ............................................................. ..................... 500 500 

502–39–6 .............. Methylmercuric Dicyanamide ..................................... ..................... 500 500/10,000 

504–24–5 .............. Pyridine, 4-Amino- ...................................................... d .................. 1,000 500/10,000 

505–60–2 .............. Mustard Gas ............................................................... d .................. 500 500 

506–61–6 .............. Potassium Silver Cyanide .......................................... a .................. 1 500 

506–68–3 .............. Cyanogen Bromide ..................................................... ..................... 1,000 500/10,000 

506–78–5 .............. Cyanogen Iodide ........................................................ ..................... 1,000 1,000/10,000 

509–14–8 .............. Tetranitromethane ...................................................... ..................... 10 500 

514–73–8 .............. Dithiazanine Iodide ..................................................... ..................... 500 500/10,000 

534–07–6 .............. Bis(Chloromethyl) Ketone ........................................... ..................... 10 10/10,000 

534–52–1 .............. Dinitrocresol ................................................................ ..................... 10 10/10,000 

535–89–7 .............. Crimidine ..................................................................... ..................... 100 100/10,000 

538–07–8 .............. Ethylbis(2-Chloroethyl)Amine ..................................... d .................. 500 500 

541–25–3 .............. Lewisite ....................................................................... b, d .............. 10 10 

541–53–7 .............. Dithiobiuret .................................................................. ..................... 100 100/10,000 

542–76–7 .............. Propionitrile, 3-Chloro- ................................................ ..................... 1,000 1,000 

542–88–1 .............. Chloromethyl Ether ..................................................... d .................. 10 100 

542–90–5 .............. Ethylthiocyanate ......................................................... ..................... 10,000 10,000 

555–77–1 .............. Tris(2-Chloroethyl)Amine ............................................ d .................. 100 100 

556–61–6 .............. Methyl Isothiocyanate ................................................. a .................. 500 500 

556–64–9 .............. Methyl Thiocyanate .................................................... ..................... 10,000 10,000 

558–25–8 .............. Methanesulfonyl Fluoride ........................................... ..................... 1,000 1,000 

563–12–2 .............. Ethion .......................................................................... ..................... 10 1,000 

563–41–7 .............. Semicarbazide Hydrochloride ..................................... ..................... 1,000 1,000/10,000 

584–84–9 .............. Toluene 2,4-Diisocyanate ........................................... ..................... 100 500 

594–42–3 .............. Perchloromethylmercaptan ......................................... ..................... 100 500 

597–64–8 .............. Tetraethyltin ................................................................ b .................. 100 100 

614–78–8 .............. Thiourea, (2-Methylphenyl)- ....................................... ..................... 500 500/10,000 

624–83–9 .............. Methyl Isocyanate ....................................................... ..................... 10 500 

627–11–2 .............. Chloroethyl Chloroformate .......................................... ..................... 1,000 1,000 

630–60–4 .............. Ouabain ...................................................................... b .................. 100 100/10,000 

639–58–7 .............. Triphenyltin Chloride ................................................... ..................... 500 500/10,000 

640–19–7 .............. Fluoroacetamide ......................................................... ..................... 100 100/10,000 

644–64–4 .............. Dimetilan ..................................................................... ..................... 1 500/10,000 

675–14–9 .............. Cyanuric Fluoride ....................................................... ..................... 100 100 

676–97–1 .............. Methyl Phosphonic Dichloride .................................... a .................. 100 100 

696–28–6 .............. Phenyl Dichloroarsine ................................................. d .................. 1 500 

760–93–0 .............. Methacrylic Anhydride ................................................ ..................... 500 500 

786–19–6 .............. Carbophenothion ........................................................ ..................... 500 500 

814–49–3 .............. Diethyl Chlorophosphate ............................................ d .................. 500 500 

814–68–6 .............. Acrylyl Chloride ........................................................... d .................. 100 100 

824–11–3 .............. Trimethylolpropane Phosphite .................................... d .................. 100 100/10,000 

900–95–8 .............. Stannane, Acetoxytriphenyl- ....................................... c .................. 500 500/10,000 

919–86–8 .............. Demeton-S-Methyl ...................................................... ..................... 500 500 

920–46–7 .............. Methacryloyl Chloride ................................................. ..................... 100 100 

944–22–9 .............. Fonofos ....................................................................... ..................... 500 500 

947–02–4 .............. Phosfolan .................................................................... ..................... 100 100/10,000 

950–10–7 .............. Mephosfolan ............................................................... ..................... 500 500 

950–37–8 .............. Methidathion ............................................................... ..................... 500 500/10,000 

991–42–4 .............. Norbormide ................................................................. ..................... 100 100/10,000 

998–30–1 .............. Triethoxysilane ............................................................ ..................... 500 500 

999–81–5 .............. Chlormequat Chloride ................................................. d .................. 100 100/10,000 

1031–47–6 ............ Triamiphos .................................................................. ..................... 500 500/10,000 

1066–45–1 ............ Trimethyltin Chloride ................................................... ..................... 500 500/10,000 

1122–60–7 ............ Nitrocyclohexane ........................................................ ..................... 500 500 

1124–33–0 ............ Pyridine, 4-Nitro-,1-Oxide ........................................... ..................... 500 500/10,000 

1129–41–5 ............ Metolcarb .................................................................... ..................... 1,000 100/10,000 

1303–28–2 ............ Arsenic Pentoxide ....................................................... ..................... 1 100/10,000 

1306–19–0 ............ Cadmium Oxide .......................................................... ..................... 100 100/10,000


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Environmental Protection Agency Pt. 355, App. B 

[CAS Number Order] 

CAS No. Chemical name Notes 

Reportable 

quantity * 

(pounds) 

Threshold planning quantity 

(pounds) 

1314–62–1 ............ Vanadium Pentoxide .................................................. ..................... 1,000 100/10,000 

1314–84–7 ............ Zinc Phosphide ........................................................... a .................. 100 500 

1327–53–3 ............ Arsenous Oxide .......................................................... d .................. 1 100/10,000 

1397–94–0 ............ Antimycin A ................................................................. b .................. 1,000 1,000/10,000 

1420–07–1 ............ Dinoterb ...................................................................... ..................... 500 500/10,000 

1464–53–5 ............ Diepoxybutane ............................................................ ..................... 10 500 

1558–25–4 ............ Trichloro(Chloromethyl)Silane .................................... ..................... 100 100 

1563–66–2 ............ Carbofuran .................................................................. ..................... 10 10/10,000 

1600–27–7 ............ Mercuric Acetate ......................................................... ..................... 500 500/10,000 

1622–32–8 ............ Ethanesulfonyl Chloride, 2-Chloro- ............................ ..................... 500 500 

1752–30–3 ............ Acetone Thiosemicarbazide ....................................... ..................... 1,000 1,000/10,000 

1910–42–5 ............ Paraquat Dichloride .................................................... ..................... 10 10/10,000 

1982–47–4 ............ Chloroxuron ................................................................ ..................... 500 500/10,000 

2001–95–8 ............ Valinomycin ................................................................ b .................. 1,000 1,000/10,000 

2032–65–7 ............ Methiocarb .................................................................. ..................... 10 500/10,000 

2074–50–2 ............ Paraquat Methosulfate ............................................... ..................... 10 10/10,000 

2097–19–0 ............ Phenylsilatrane ........................................................... d .................. 100 100/10,000 

2104–64–5 ............ EPN ............................................................................ ..................... 100 100/10,000 

2223–93–0 ............ Cadmium Stearate ...................................................... b .................. 1,000 1,000/10,000 

2231–57–4 ............ Thiocarbazide ............................................................. ..................... 1,000 1,000/10,000 

2238–07–5 ............ Diglycidyl Ether ........................................................... ..................... 1,000 1,000 

2275–18–5 ............ Prothoate .................................................................... ..................... 100 100/10,000 

2497–07–6 ............ Oxydisulfoton .............................................................. d .................. 500 500 

2524–03–0 ............ Dimethyl Phosphorochloridothioate ............................ ..................... 500 500 

2540–82–1 ............ Formothion .................................................................. ..................... 100 100 

2570–26–5 ............ Pentadecylamine ........................................................ ..................... 100 100/10,000

2587–90–8 ............ Phosphorothioic Acid, O,O-Dimethyl-S-(2-Methylthio) 

Ethyl Ester.

b, c .............. 500 500 

2631–37–0 ............ Promecarb .................................................................. d .................. 1,000 500/10,000 

2636–26–2 ............ Cyanophos .................................................................. ..................... 1,000 1,000 

2642–71–9 ............ Azinphos-Ethyl ............................................................ ..................... 100 100/10,000 

2665–30–7 ............ Phosphonothioic Acid, Methyl-, O-(4-Nitrophenyl) OPhenyl Ester...................... 500 500 

2703–13–1 ............ Phosphonothioic Acid, Methyl-, O-Ethyl O-(4- 

(Methylthio)Phenyl) Ester.

..................... 500 500 

2757–18–8 ............ Thallous Malonate ...................................................... b, d .............. 100 100/10,000 

2763–96–4 ............ Muscimol ..................................................................... ..................... 1,000 500/10,000 

2778–04–3 ............ Endothion .................................................................... ..................... 500 500/10,000 

3037–72–7 ............ Silane, (4-Aminobutyl)Diethoxymethyl- ...................... ..................... 1,000 1,000 

3254–63–5 ............ Phosphoric Acid, Dimethyl 4-(Methylthio)Phenyl 

Ester.

..................... 500 500 

3569–57–1 ............ Sulfoxide, 3-Chloropropyl Octyl .................................. ..................... 500 500 

3615–21–2 ............ Benzimidazole, 4,5-Dichloro-2-(Trifluoromethyl)- ....... c .................. 500 500/10,000 

3689–24–5 ............ Sulfotep ....................................................................... ..................... 100 500 

3691–35–8 ............ Chlorophacinone ......................................................... ..................... 100 100/10,000 

3734–97–2 ............ Amiton Oxalate ........................................................... ..................... 100 100/10,000 

3735–23–7 ............ Methyl Phenkapton ..................................................... ..................... 500 500 

3878–19–1 ............ Fuberidazole ............................................................... ..................... 100 100/10,000 

4044–65–9 ............ Bitoscanate ................................................................. ..................... 500 500/10,000 

4098–71–9 ............ Isophorone Diisocyanate ............................................ g .................. 500 500 

4104–14–7 ............ Phosacetim ................................................................. ..................... 100 100/10,000 

4170–30–3 ............ Crotonaldehyde .......................................................... ..................... 100 1,000 

4301–50–2 ............ Fluenetil ...................................................................... ..................... 100 100/10,000 

4418–66–0 ............ Phenol, 2,2′-Thiobis(4-Chloro-6-Methyl)- ................... ..................... 100 100/10,000 

4835–11–4 ............ Hexamethylenediamine, N,N′-Dibutyl- ....................... ..................... 500 500 

5344–82–1 ............ Thiourea, (2-Chlorophenyl)- ....................................... ..................... 100 100/10,000 

5836–29–3 ............ Coumatetralyl .............................................................. ..................... 500 500/10,000 

6533–73–9 ............ Thallous Carbonate .................................................... b, d .............. 100 100/10,000 

6923–22–4 ............ Monocrotophos ........................................................... ..................... 10 10/10,000 

7446–09–5 ............ Sulfur Dioxide ............................................................. f ................... 500 500 

7446–11–9 ............ Sulfur Trioxide ............................................................ a .................. 100 100 

7446–18–6 ............ Thallous Sulfate .......................................................... ..................... 100 100/10,000 

7487–94–7 ............ Mercuric Chloride ....................................................... ..................... 500 500/10,000 

7550–45–0 ............ Titanium Tetrachloride ................................................ ..................... 1,000 100 

7580–67–8 ............ Lithium Hydride ........................................................... a .................. 100 100 

7631–89–2 ............ Sodium Arsenate ........................................................ ..................... 1 1,000/10,000

7637–07–2 ............ Boron Trifluoride ......................................................... ..................... 500 500 

7647–01–0 ............ Hydrogen Chloride (gas only) .................................... f ................... 5,000 500 

7664–39–3 ............ Hydrogen Fluoride ...................................................... ..................... 100 100 

7664–41–7 ............ Ammonia ..................................................................... f ................... 100 500 

7664–93–9 ............ Sulfuric Acid ................................................................ ..................... 1,000 1,000 


wreier-aviles on DSK5TPTVN1PROD with CFR
446 

Pt. 355, App. B 40 CFR Ch. I (7–1–13 Edition) 

[CAS Number Order] 

CAS No. Chemical name Notes 

Reportable 

quantity * 

(pounds) 

Threshold planning quantity 

(pounds) 

7697–37–2 ............ Nitric Acid ................................................................... ..................... 1,000 1,000 

7719–12–2 ............ Phosphorus Trichloride ............................................... ..................... 1,000 1,000 

7722–84–1 ............ Hydrogen Peroxide (Conc >52%) .............................. f ................... 1,000 1,000 

7723–14–0 ............ Phosphorus ................................................................. a, d .............. 1 100 

7726–95–6 ............ Bromine ...................................................................... f ................... 500 500 

7778–44–1 ............ Calcium Arsenate ....................................................... ..................... 1 500/10,000 

7782–41–4 ............ Fluorine ....................................................................... e .................. 10 500 

7782–50–5 ............ Chlorine ...................................................................... ..................... 10 100 

7783–00–8 ............ Selenious Acid ............................................................ ..................... 10 1,000/10,000 

7783–06–4 ............ Hydrogen Sulfide ........................................................ f ................... 100 500 

7783–07–5 ............ Hydrogen Selenide ..................................................... ..................... 10 10 

7783–60–0 ............ Sulfur Tetrafluoride ..................................................... ..................... 100 100 

7783–70–2 ............ Antimony Pentafluoride .............................................. ..................... 500 500 

7783–80–4 ............ Tellurium Hexafluoride ................................................ e .................. 100 100 

7784–34–1 ............ Arsenous Trichloride ................................................... ..................... 1 500 

7784–42–1 ............ Arsine .......................................................................... ..................... 100 100 

7784–46–5 ............ Sodium Arsenite ......................................................... ..................... 1 500/10,000 

7786–34–7 ............ Mevinphos .................................................................. ..................... 10 500 

7791–12–0 ............ Thallous Chloride ........................................................ b, d .............. 100 100/10,000 

7791–23–3 ............ Selenium Oxychloride ................................................. ..................... 500 500 

7803–51–2 ............ Phosphine ................................................................... ..................... 100 500 

8001–35–2 ............ Camphechlor .............................................................. ..................... 1 500/10,000

8065–48–3 ............ Demeton ..................................................................... ..................... 500 500 

10025–73–7 .......... Chromic Chloride ........................................................ ..................... 1 1/10,000 

10025–87–3 .......... Phosphorus Oxychloride ............................................ ..................... 1,000 500 

10026–13–8 .......... Phosphorus Pentachloride ......................................... a .................. 500 500 

10028–15–6 .......... Ozone ......................................................................... ..................... 100 100 

10031–59–1 .......... Thallium Sulfate .......................................................... d .................. 100 100/10,000

10102–18–8 .......... Sodium Selenite ......................................................... d .................. 100 100/10,000 

10102–20–2 .......... Sodium Tellurite .......................................................... ..................... 500 500/10,000 

10102–43–9 .......... Nitric Oxide ................................................................. b .................. 10 100 

10102–44–0 .......... Nitrogen Dioxide ......................................................... ..................... 10 100 

10124–50–2 .......... Potassium Arsenite ..................................................... ..................... 1 500/10,000 

10140–87–1 .......... Ethanol, 1,2-Dichloro-, Acetate .................................. ..................... 1,000 1,000 

10210–68–1 .......... Cobalt Carbonyl .......................................................... d .................. 10 10/10,000 

10265–92–6 .......... Methamidophos .......................................................... ..................... 100 100/10,000 

10294–34–5 .......... Boron Trichloride ........................................................ ..................... 500 500 

10311–84–9 .......... Dialifor ......................................................................... ..................... 100 100/10,000 

10476–95–6 .......... Methacrolein Diacetate ............................................... ..................... 1,000 1,000 

12002–03–8 .......... Paris Green ................................................................ ..................... 1 500/10,000 

12108–13–3 .......... Manganese, Tricarbonyl Methylcyclopentadienyl ....... d .................. 100 100 

13071–79–9 .......... Terbufosh .................................................................... d .................. 100 100 

13171–21–6 .......... Phosphamidon ............................................................ ..................... 100 100 

13194–48–4 .......... Ethoprophos ............................................................... ..................... 1,000 1,000 

13410–01–0 .......... Sodium Selenate ........................................................ ..................... 100 100/10,000 

13450–90–3 .......... Gallium Trichloride ...................................................... ..................... 500 500/10,000 

13463–39–3 .......... Nickel Carbonyl .......................................................... ..................... 10 1 

13463–40–6 .......... Iron, Pentacarbonyl- ................................................... ..................... 100 100 

14167–18–1 .......... Salcomine ................................................................... ..................... 500 500/10,000 

15271–41–7 .......... Bicyclo[2.2.1]Heptane-2-Carbonitrile, 5-Chloro-6- 

((((Methylamino)Carbonyl)Oxy)Imino)-, (1s-(1- 

alpha,2-beta,4-alpha,5-alpha,6E))-.

..................... 500 500/10,000 

16752–77–5 .......... Methomyl .................................................................... d .................. 100 500/10,000 

17702–41–9 .......... Decaborane(14) .......................................................... ..................... 500 500/10,000

17702–57–7 .......... Formparanate ............................................................. ..................... 100 100/10,000 

19287–45–7 .......... Diborane ..................................................................... ..................... 100 100 

19624–22–7 .......... Pentaborane ............................................................... ..................... 500 500 

20830–75–5 .......... Digoxin ........................................................................ d .................. 10 10/10,000 

20859–73–8 .......... Aluminum Phosphide .................................................. a .................. 100 500 

21548–32–3 .......... Fosthietan ................................................................... ..................... 500 500 

21609–90–5 .......... Leptophos ................................................................... ..................... 500 500/10,000 

21908–53–2 .......... Mercuric Oxide ........................................................... ..................... 500 500/10,000 

21923–23–9 .......... Chlorthiophos .............................................................. d .................. 500 500 

22224–92–6 .......... Fenamiphos ................................................................ ..................... 10 10/10,000

23135–22–0 .......... Oxamyl ........................................................................ ..................... 100 100/10,000 

23422–53–9 .......... Formetanate Hydrochloride ........................................ d .................. 100 500/10,000 

23505–41–1 .......... Pirimifos-Ethyl ............................................................. ..................... 1,000 1,000 

24017–47–8 .......... Triazofos ..................................................................... ..................... 500 500 

24934–91–6 .......... Chlormephos .............................................................. ..................... 500 500 

26419–73–8 .......... Carbamic Acid, Methyl-, O-(((2,4-Dimethyl-1, 3- 

Dithiolan-2-yl)Methylene)Amino)-.

..................... 100 100/10,000 


wreier-aviles on DSK5TPTVN1PROD with CFR
447 

Environmental Protection Agency Pt. 370 

[CAS Number Order] 

CAS No. Chemical name Notes 

Reportable 

quantity * 

(pounds) 

Threshold planning quantity 

(pounds) 

26628–22–8 .......... Sodium Azide (Na(N3)) ............................................... a .................. 1,000 500 

27137–85–5 .......... Trichloro(Dichlorophenyl)Silane .................................. ..................... 500 500 

28347–13–9 .......... Xylylene Dichloride ..................................................... ..................... 100 100/10,000

28772–56–7 .......... Bromadiolone .............................................................. ..................... 100 100/10,000 

30674–80–7 .......... Methacryloyloxyethyl Isocyanateh .............................. ..................... 100 100 

39196–18–4 .......... Thiofanox .................................................................... ..................... 100 100/10,000 

50782–69–9 .......... Phosphonothioic Acid, Methyl-, S-(2-(Bis(1- 

Methylethyl)Amino)Ethyl) O-Ethyl Ester.

..................... 100 100 

53558–25–1 .......... Pyriminil ...................................................................... d .................. 100 100/10,000 

58270–08–9 .......... Zinc, Dichloro(4,4-Dimethyl-5((((Methylamino) Carbonyl)Oxy)Imino)Pentanenitrile)-, (T–4)-...................... 100 100/10,000 

62207–76–5 .......... Cobalt, ((2,2′-(1,2-Ethanediylbis (Nitrilomethylidyne)) 

Bis(6-Fluorophenolato)) (2-)-N,N′,O,O′)-.

..................... 100 100/10,000 

* Only the statutory or final RQ is shown. For more information, see 40 CFR 355.61. 

Notes: 

a. This material is a reactive solid. The TPQ does not default to 10,000 pounds for non-powder, non-molten, non-solution form. 

b. The calculated TPQ changed after technical review as described in a technical support document for the final rule, April 22,

1987. 

c. Chemicals added by final rule, April 22, 1987. 

d. Revised TPQ based on new or re-evaluated toxicity data, April 22, 1987. 

e. The TPQ was revised due to calculation error, April 22, 1987. 

f. Chemicals on the original list that do not meet toxicity criteria but because of their acute lethality, high production volume 

and known risk are considered chemicals of concern (‘‘Other chemicals’’). (November 17, 1986, and February 15, 1990.) 

g. The TPQ was recalculated (September 8, 2003) since it was mistakenly calculated in the April 22, 1987, final rule under the 

wrong assumption that this chemical is a reactive solid, when in fact it is a liquid. RQ for this chemical was adjusted on September 11, 2006. 

PART 370—HAZARDOUS CHEMICAL 

REPORTING: COMMUNITY RIGHTTO-KNOW 

Subpart A—General Information 

Sec. 

370.1 What is the purpose of this part? 

370.2 Who do ‘‘you,’’ ‘‘I,’’ and ‘‘your’’ refer 

to in this part? 

370.3 Which section contains the definitions 

of the key words used in this part? 

Subpart B—Who Must Comply 

370.10 Who must comply with the hazardous 

chemical reporting requirements of this 

part? 

370.11 [Reserved] 

370.12 What hazardous chemicals must I report under this part? 

370.13 What substances are exempt from 

these reporting requirements? 

370.14 How do I report mixtures containing 

hazardous chemicals? 

Subpart C—Reporting Requirements 

370.20 What are the reporting requirements 

of this part? 

HOW TO COMPLY WITH MSDS REPORTING

370.30 What information must I provide and 

what format must I use? 

370.31 Do I have to update the information? 

370.32 To whom must I submit the information? 

370.33 When must I submit the information? 

HOW TO COMPLY WITH INVENTORY REPORTING

370.40 What information must I provide and 

what format must I use? 

370.41 What is Tier I inventory information? 

370.42 What is Tier II inventory information? 

370.43 What codes are used to report Tier I 

and Tier II inventory information? 

370.44 To whom must I submit the inventory information? 

370.45 When must I submit the inventory information? 

Subpart D—Community Access to 

Information 

370.60 How does a person obtain MSDS information about a specific facility? 

370.61 How does a person obtain inventory 

information about a specific facility? 

370.62 What information may a State or 

local official request from a facility? 

370.63 What responsibilities do the SERC 

and the LEPC have to make requested 

information available? 

370.64 What information can I claim as 

trade secret or confidential? 

370.65 Must I allow the local fire department to inspect my facility and must I 

provide specific location information 

about hazardous chemicals at my facility? 

370.66 How are key words in this part defined? 


wreier-aviles on DSK5TPTVN1PROD with CFR