This part also lists Extremely Hazardous Substances (EHSs) and Threshold Planning Quantities (TPQs) in Appendices A and B, which are used in determining if you are subject to these requirements. Clean Air Act 1990 Amendments Hazardous Air Pollutants . A separate drafting site WorkSafe Victoria Advisory Service Tel. ECHA has added 9 hazardous chemicals to SVHC candidate list on 17 Jan 2023. Appendix F: CERCLA hazardous substance chemical categories. Updates as of 2006 can be seen on the Federal Register, 71 FR 47121 (August 16, 2006). For gasoline (all grades combined) at a retail gas station, the threshold level is 75,000 gallons (or approximately 283,900 liters), if the tank(s) was stored entirely underground and was in compliance at all times during the preceding calendar year with all applicable Underground Storage Tank (UST) requirements at 40 CFR part 280 or requirements of the State UST program approved by the Agency under 40 CFR part 281. This material is a reactive solid. (November 17, 1986, and February 15, 1990.). Except as provided by 323.5 (relating to automatic additions to Hazardous Substance List), the Department will add or delete substances from the list contained in Appendix A only following public notice, hearings and publication of a rulemaking under the act of July 31, 1968 (P. L. 769, No. 1. b. File Segment . The EHS list was first compiled by EPA, and subsequently incorporated into EPCRA, to identify chemicals that could cause serious irreversible health effects from accidental releases. Request For Applications (RFA) Number: RFA-ES-09-012 The procedure for selecting a proper shipping name for a hazardous substance is set forth in 172.101(c)(8). Extremely Hazardous Substances (EHSs) are substances listed on the EPA List of Lists. This material is a reactive solid. Signed into law in 1986, the Emergency Planning and Community Right-to-Know Act (EPCRA) directed the EPA to publish a list of extremely hazardous substances. Under Section 311 of the Emergency Planning and Community Right-to-Know Act (EPCRA), facilities must submit the SDSsof hazardous chemicals present on-site at or above the reporting threshold to their State or Tribal Emergency Response Commission (SERC or TERC), Local or Tribal Emergency Planning Committee (LEPC or TEPC), and local fire department. Microsoft Edge, Google Chrome, Mozilla Firefox, or Safari. Background. 1/1.1 The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. List of Regulated Substances under the Risk Management Program (RMP) Program The Risk Management Program (RMP) rule provides a List of Regulated Substances under section 112 (r) of the Clean Air Act. Amendment Section 112 (r) of the Clean Air Act is the Risk Management Plan (RMP) Rule by the EPA. 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. SDSs are detailed information sheets that provide data on health hazards and physical hazards of chemicals along with associated protective measures. 172.101 - 172.102. For any hazardous chemical used or stored in the workplace, facilities must maintain a safety data sheet (SDS) (formerly known as material safety data sheet, MSDS). Extremely hazardous substances - superfund chemical profiles This rule also codifies the reporting and notification requirements for facilities at which EHSs are present. 8. Section 112(r) of the Clean Air Act (CAA). The health effects of hazardous chemicals are often less clear than the physical hazards. We recommend you directly contact the agency responsible for the content in question. Choosing an item from The extremely hazardous substances and their TPQs are listed in 40 CFR Part 355, Appendices A and B. TPQ. Secure .gov websites use HTTPS SARA Title III/EPCRA Extremely Hazardous Substances . The TPQ does not default to 10,000 pounds for non-powder, non-molten, non-solution form. The TPQ does not default to 10,000 pounds for non-powder, non-molten, non-solution form. (52 FR 13378). The TPQ does not default to 10,000 pounds for non-powder, non-molten, non-solution form. All data contained within DOE computer systems is owned by the DOE, and may be audited, intercepted, recorded, read, copied, or captured in any manner and disclosed in any manner, by authorized . These lists should be used as a reference tool, not as a definitive source of compliance information. April 22, 1987: Extremely Hazardous Substance (EHS) List and Threshold Planning Quantities; Emergency Planning and Release Notification Requirements; Final Rule. What are EHSs? Please click here to see any active alerts. learn more about the process here. The EPA has a comprehensive EHS list that shows all the chemicals that should be reported. here. Share sensitive information only on official, secure websites. Hazardous by definition of OSHA: 29 CFR 1910.1200 Hydrogen Peroxides3 (30%) Severely corrosive and cause severe skin burns and eye damage. Secure .gov websites use HTTPS formatting. * Only the statutory or final RQ is shown. A lock (LockA locked padlock) or https:// means youve safely connected to the .gov website. This is an automated process for view historical versions Title 40 Chapter I Subchapter J Part 355 In an emergency, call triple zero (000). contact the publishing agency. You can learn more about the process 40 CFR Appendix B to Part 355 - The List of Extremely Hazardous Substances and Their Threshold Planning Quantities | Electronic Code of Federal Regulations (e-CFR) | US Law | LII / Legal Information Institute LII Electronic Code of Federal Regulations (e-CFR) Title 40 - Protection of Environment CHAPTER I - ENVIRONMENTAL PROTECTION AGENCY The TPQ does not default to 10,000 pounds for non-powder, non-molten, non-solution form. [57 FR 7847, Mar. 28-65-3 shall pay an annual report fee based upon the sum of the maximum daily reportable quantities of extremely hazardous substances or hazardous chemicals, or both, present at the facility as . Federal Drug Administration Regulations . This Federal Register notice contains the EHS list of chemicals as published in 1987. For chemicals that are solids, there may be two TPQs given (e.g., Secure .gov websites use HTTPS Accidental release prevention requirements under CAA 112(r) (40 CFR Part 68). Appendix B to Part 355 - The List of Extremely Hazardous Substances and Their Threshold Planning Quantities, Electronic Code of Federal Regulations (e-CFR), CHAPTER I - ENVIRONMENTAL PROTECTION AGENCY, SUBCHAPTER J - SUPERFUND, EMERGENCY PLANNING, AND COMMUNITY RIGHT-TO-KNOW PROGRAMS, PART 355 - EMERGENCY PLANNING AND NOTIFICATION, Isopropylmethyl-pyrazolyl Dimethylcarbamate, Boron Trifluoride Compound With Methyl Ether (1:1), Phosphorothioic Acid, O,O-Dimethyl-S-(2-Methylthio) Ethyl, Phosphonothioic Acid, Methyl-, O-(4-Nitrophenyl) O-Phenyl, Phosphonothioic Acid, Methyl-, O-Ethyl O-(4-(Methylthio)Phenyl), Phosphoric Acid, Dimethyl 4-(Methylthio)Phenyl, Manganese, Tricarbonyl Methylcyclopentadienyl, Bicyclo[2.2.1]Heptane-2-Carbonitrile, 5-Chloro-6-((((Methylamino)Carbonyl)Oxy)Imino)-, (1s-(1-alpha,2-beta,4-alpha,5-alpha,6E))-, Phosphonothioic Acid, Methyl-, S-(2-(Bis(1-Methylethyl)Amino)Ethyl) O-Ethyl, Cobalt, ((2,2-(1,2-Ethanediylbis (Nitrilomethylidyne)) Bis(6-Fluorophenolato)) (2-)-N,N,O,O)-. developer resources. EPAsSubstance Registry Services (SRS)database can be used to search for a specific chemical name or Chemical Abstract Service (CAS) registry number. "Published Edition". On the hazardous substances list, you can find the English name and CAS No. Extremely Hazardous Substance list to the materials' defined Threshold planning Quantity (TPQ). Title 40 was last amended 3/01/2023. Emit fumes of bromine and bromides upon thermal decomposition Chemicals Name Sodium Metal3 This should only be necessary once for each IP address you access the site from. - Superfund, Emergency Planning, and Community Right-to-Know Programs, https://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-355/appendix-Appendix%20A%20to%20Part%20355, Benzimidazole, 4,5-Dichloro-2-(Trifluoromethyl)-, Bicyclo[2.2.1]Heptane-2-Carbonitrile, 5-Chloro-6-((((Methylamino)Carbonyl)Oxy)Imino)-, (1s-(1-alpha,2-beta,4-alpha,5-alpha,6E))-, Boron Trifluoride Compound With Methyl Ether (1:1), Carbamic Acid, Methyl-, O-(((2,4-Dimethyl-1, 3-Dithiolan-2-yl)Methylene)Amino)-, Cobalt, ((2,2-(1,2-Ethanediylbis (Nitrilomethylidyne)) Bis(6-Fluorophenolato))(2-)-N,N,O,O)-, Isopropylmethyl-pyrazolyl Dimethylcarbamate, Manganese, Tricarbonyl Methylcyclopentadienyl, Phenol, 3-(1-Methylethyl)-, Methylcarbamate, Phosphonothioic Acid, Methyl-, O-Ethyl O-(4-(Methylthio) Phenyl) Ester, Phosphonothioic Acid, Methyl-, S-(2-(Bis(1Methylethyl)Amino)Ethyl) O-Ethyl Ester, Phosphonothioic Acid, Methyl-, O-(4-Nitrophenyl) O-Phenyl Ester, Phosphoric Acid, Dimethyl 4-(Methylthio)Phenyl Ester, Phosphorothioic Acid, O,O-Dimethyl-S-(2-Methylthio) Ethyl Ester, Zinc, Dichloro(4,4-Dimethyl-5((((Methylamino)Carbonyl) Oxy)Imino)Pentanenitrile)-, (T-4)-. This covers Parts 300 - 399 including 40 CFR 355, which is the section on Emergency Planning and Notification. EPA list of extremely hazardous substances, Last edited on 18 November 2021, at 09:26, Emergency Planning and Community Right-to-Know Act, United States Environmental Protection Agency, Benzimidazole, 4,5-dichloro-2-(trifluoromethyl)-, Carbamic acid, Methyl-, O-(((2,4-Dimethyl-1,3-Dithiolan-2-yl)Methylene)Amino)-, O-Ethyl-O-(4-nitrophenyl)phenylthiophosphonate, Isopropylmethylpyrazolyl dimethylcarbamate, Manganese, tricarbonyl methylcyclopentadienyl, Phenol, 3-(1-methylethyl)-, methylcarbamate, Phosphonothioic acid, methyl-, O-ethyl O-(4-(methylthio)phenyl) ester, Phosphonothioic acid, methyl-, S-(2-(bis(1-methylethyl)amino)ethyl) O-ethyl ester, Phosphonothioic acid, methyl-, O-(4-nitrophenyl) O-phenyl ester, Phosphoric acid, dimethyl 4-(methylthio)phenyl ester, Phosphonothioic acid, O,O-dimethyl-S-(2-methylthio) ethyl ester, Appendix A to Part 355 - The List of Extremely Hazardous Substances and Their Threshold Planning Quantities, Federal Register 71 FR 47121 (amendment, August 16, 2006), https://en.wikipedia.org/w/index.php?title=EPA_list_of_extremely_hazardous_substances&oldid=1055873020, This page was last edited on 18 November 2021, at 09:26. Share sensitive information only on official, secure websites. The data were provided by the United States Environmental Protection Agency (EPA). Emergency Planning and Community Right-to-Know Act (EPCRA); Comprehensive Environmental Response, Compensation and Liability Act (CERCLA); and. Refer to the List of Hazardous Substances and Reportable Quantities (Excel) when shipping hazardous materials. If you have questions for the Agency that issued the current document please contact the agency directly. 7. Subpart Title: Toxic and Hazardous Substances Standard Number: 1910.1000 TABLE Z-2 Title: TABLE Z-2 GPO Source: e-CFR a This standard applies to the industry segments exempt from the 1 ppm 8-hour TWA and 5 ppm STEL of the benzene standard at 1910.1028. Appendix A to Part 355 - The List of Extremely Hazardous Substances and Their Threshold Planning Quantities [Alphabetical Order] * Only the statutory or final RQ is shown. An official website of the United States government. (Source #1) Occupational Safety and Health Administration, 29 CFR 1910-Occupational Safety and Health Standards, Subpart Z-Toxic and Hazardous Substances, July 1, [2005 . For more information, see 40 CFR part 370and EPCRAAmendmentsand EPCRA Guidance Documents and Fact Sheets. ECHA/NR/23/02. It must be noted that despite having the exact same name, the "extremely hazardous substances" subject to the Accidental Release Reporting Rule are not the same as, or in any sense limited to, EPA's list of "extremely hazardous substances" that are subject to EPCRA 304(a). (b) Unlisted hazardous substances. Notes: Threshold planning quantity (pounds) 75-86-5 Acetone Cyanohydrin 1,000 107-02-8 Acrolein 500 107-13-1 Acrylonitrile f 10,000 814-68-6 Acrylyl Chloride d 100 Each can be displayed in ascending or descending order by clicking on the appropriate arrow in any of the headings. If you are human user receiving this message, we can add your IP address to a set of IPs that can access FederalRegister.gov & eCFR.gov; complete the CAPTCHA (bot test) below and click "Request Access". A .gov website belongs to an official government organization in the United States. switch to drafting.ecfr.gov. Facilities may choose to submit a list of the hazardous chemicals grouped into hazard categories instead. A hazardous waste is extremely hazardous based on the following criteria: Acute oral toxicity3 - LD 50 is less than or equal to 50 mg/kg. [1] Updates as of 2006 can be seen on the Federal Register, 71 FR 47121 (August 16, 2006).[2]. However, the actual meanings of these . 240) (45 P. S. 1102, 12011208 and 1602 . Please click here to see any active alerts. Atlanta, GA 30329. Implemented by the Administrative Council on Toxics Use Reduction. The list of Extremely 301 CMR 41.00: Toxic or Hazardous Substances List. 11002). May cause fire or explosions. This is a Department of Energy (DOE) computer system. Further information can be obtained by contacting the ATSDR Information Center at: Agency for Toxic Substances and Disease Registry. Choosing an item from A lock (LockA locked padlock) or https:// means youve safely connected to the .gov website. Carcinogenicity6 - Single or combined . SRS can also be searched by a specific regulatory list and shows all the chemicals on that particular list. Where can I find more information on these requirements? Refer to the "List of Lists" (available online) EPCRA Section 311 Reporting: (Hazardous Chemical Storage Reporting) this is a one-time submittal; facilities have 90 days after becoming subject to OSHA regulations to submit their material. Toxic Substances List - Updated Schedule 1 as of May 12, 2021. b. A .gov website belongs to an official government organization in the United States. 4. The list can be found as an appendix to 40 C.F.R. This is a one-time submittal. The reporting threshold for extremely hazardous substances is 500 lbs or the threshold planning quantity (TPQ), whichever is less. citations and headings JavaScript appears to be disabled on this computer. The table of contents includes Appendixes A and B of the List of Extremely Hazardous Substances and their threshold planning quantities. These substances must also be kept out of reach of children. This content is from the eCFR and may include recent changes applied to the CFR. 40 CFR 355 Appendix A and B: Emergency Planning And Notification or existing codification. 9. "LEPC" means "Committee," as prescribed at A.R.S. The list includes the threshold planning quantities (TPQs or minimum limits) for each substance. Appendix A to Part 355 - The List of Extremely Hazardous Substances and Their Threshold Planning Quantities, Electronic Code of Federal Regulations (e-CFR), CHAPTER I - ENVIRONMENTAL PROTECTION AGENCY, SUBCHAPTER J - SUPERFUND, EMERGENCY PLANNING, AND COMMUNITY RIGHT-TO-KNOW PROGRAMS, PART 355 - EMERGENCY PLANNING AND NOTIFICATION, Bicyclo[2.2.1]Heptane-2-Carbonitrile, 5-Chloro-6-((((Methylamino)Carbonyl)Oxy)Imino)-, (1s-(1-alpha,2-beta,4-alpha,5-alpha,6E))-, Boron Trifluoride Compound With Methyl Ether (1:1), Cobalt, ((2,2-(1,2-Ethanediylbis (Nitrilomethylidyne)) Bis(6-Fluorophenolato))(2-)-N,N,O,O)-, Isopropylmethyl-pyrazolyl Dimethylcarbamate, Manganese, Tricarbonyl Methylcyclopentadienyl, Phosphonothioic Acid, Methyl-, O-Ethyl O-(4-(Methylthio) Phenyl), Phosphonothioic Acid, Methyl-, S-(2-(Bis(1Methylethyl)Amino)Ethyl) O-Ethyl, Phosphonothioic Acid, Methyl-, O-(4-Nitrophenyl) O-Phenyl, Phosphoric Acid, Dimethyl 4-(Methylthio)Phenyl, Phosphorothioic Acid, O,O-Dimethyl-S-(2-Methylthio) Ethyl. Toxic Chemicals on the list at 40 CFR 372.65 established by the United States Environmental Protection Agency for reporting pursuant to SARA Title III section 313, incorporated herein by reference, as from time to time supplemented or amended; 2. 302.4 Designation of hazardous sub-stances. RQ for this chemical was adjusted on September 11, 2006. The Candidate List of substances of very high concern now contains 233 entries for chemicals that can harm people or the environment. Introductory material explaining the lists and codes used in the chemical tables; Appendix B: Radionuclides listed under CERCLA; Appendix D: Toxics Release Inventory (TRI) chemical categories; or. The management type determines what kind of regulatory actions are needed for compliance. Inert compressed gases such as nitrogen, argon, and carbon dioxide are not considered "Hazardous Gases" for the purpose of this SOP. Contact Us to ask a question, provide feedback, or report a problem. FAR). When expanded it provides a list of search options that will switch the search inputs to match the current selection. SPECIAL HEALTH HAZARD SUBSTANCE LIST. It is available on Please check with your state, tribe, or territory for any additional reporting requirements. Regulatory lists include those managed by EPA and other federal agencies and states. "MSDS" means material safety data sheet and has the same meaning as prescribed at 40 CFR 370.02. Background and more details are available in the is available with paragraph structure matching the official CFR full text search results The List of Lists is a consolidated list of chemicals subject to: It was prepared to help facilities handling chemicals determine, for a specific chemical, whether they may be subject to certain reporting requirements. The Canadian Environmental Protection Act, 1999 (CEPA) provides the Government of Canada instruments including regulations to protect the environment and human health, and establishes strict timelines for managing substances found toxic under the act. Division of Toxicology and Human Health Sciences. This docu-ment contains the lists of extremely hazardous substances, hazardous substances (as defined by CERCLA), Clean Air Act Section 112(r) substances, and toxic chemicals. REFERENCE SOURCES Chemicals cited in the following references are included in the Right to Know Hazardous Substance List. sara title iii/epcra extremely hazardous substances toxic substances control act (tsca) inventory tsca inventory update rule (iur) tsca significant new use rule (snur) . The following is a list of some of the information required on the inventory form: Tier II Reporting Requirements by State and Tier2 Submit Software. It provides the regulations and statutes applicable to the chemical. The . Following the listing of elements and compounds is a listing of waste streams. This contact form is only for website help or website suggestions. Part 172. Very hazardous and extremely reactive and many are carcinogens. The EHS list was first compiled by EPA, and subsequently incorporated into EPCRA, to identify chemicals that could cause serious irreversible health effects from accidental releases. * Only the statutory or final RQ is shown. Displaying title 40, up to date as of 3/02/2023. List Type: Statute/Regulation: List Status: Approved: Number of Entries: 409: List Description: Title III of the Superfund Amendments and Reauthorization Act of 1986 (SARA), also known as the Emergency Planning and Community Right-to-Know Act of 1986 (EPCRA), establishes a program designed to encourage state and local planning and preparedness for spills and releases of extremely hazardous . Share sensitive information only on official, secure websites. Regulation Y of a hazardous substance, its management type and applicable conditions. 49 CFR 172.101 Facilities covered by these requirements must submit an emergency and hazardous chemical inventory form to their State or Tribal Emergency Response Commission (SERC or TERC), Local or Tribal Emergency Planning Committee (LEPC or TEPC), and the local fire department annually. EHSs are listed in 40 CFR Part 355. Regulatory lists include those managed by EPA and other federal agencies and states. Full Chemical Name . 6. Search & Navigation The Emergency Planning and Community Right-to-Know Act (EPCRA) section 304 release reporting requirements apply to the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) hazardous substances and EPCRA extremely hazardous substances (EHSs). Little Pro on 2023-01-17 1503. The four types of hazardous materials planning and reporting are: Emergency Release Notification ( EPCRA Section 304) Community Right to Know Hazardous Chemical Reporting (Tier II) ( EPCRA Sections 311-312) Community Right to Know Toxics Release Inventory (TRI) Reporting ( EPCRA TRI or Form R reporting) (Section 313) If an accidental release of an Extremely Hazardous Substance (EHS) exceeds the applicable minimal reportable quantity, the facility must notify the State Emergency Response Commissions (SERC) and Local Emergency Planning Committee (LEPC) for any area likely to be affected by the release. EHSs are listed in, Emergency Planning and Community Right-to-Know Act (EPCRA). Emergency Planning and Community Right-to-Know Act (EPCRA). A solid waste, as defined in 40 CFR 261.2, which is not excluded from regulation You are using an unsupported browser. 13 23 60 - for employers to report fatalities and serious workplace injuries or incidents, 24 hours, 7 days. eCFR :: Appendix A to Part 355, Title 40 -- The List of Extremely Hazardous Substances and Their Threshold Planning Quantities eCFR The Electronic Code of Federal Regulations Title 40 Displaying title 40, up to date as of 2/27/2023. The information submitted by facilities must be made available to the public. Title: Superfund Hazardous Substance Research and Training Program (P42) Announcement Type This is a reissue of RFA-ES-08-005. This button displays the currently selected search type. List of Hazardous Substances and Reportable Quantities 68.96KB (.xlsx) Resource id: 1104 Category: Chemical Contact Hazardous Materials Contact (206) 685-2849 hazmat@uw.edu Facilities that need to submit SDSs or the list of hazardous chemicals under Section 311, also need to submit an annual inventory report for the same chemicals (, The chemical name or the common name as indicated on the SDS, An estimate of the maximum amount of the chemical present at any time during the preceding calendar year and the average daily amount, A brief description of the manner of storage of the chemical, The location of the chemical at the facility, An indication of whether the owner of the facility elects to withhold location information from disclosure to the public. b. Please click here to see any active alerts. Source No. Please refer to the following requirements in the appropriate part of the Code of Federal Regulations (CFR): The List of Lists is available in in the following formats: Please notethatthe Excel file does not contain: All appendices appear in the PDF version of the List of Lists. (a) Listed hazardous substances. The Office of the Federal Register publishes documents on behalf of Federal agencies but does not have any authority over their programs. The EHS list was first compiled by EPA, and subsequently incorporated into EPCRA, to identify chemicals that could cause serious irreversible health effects from accidental releases. Data on the health effects of chemical exposure, especially from chronic exposure, are often incomplete. 2. Update: The following update relating to this announcement has been issued: October 29, 2010 - This RFA has been reissued as (RFA-ES-10-010). Substances that are determined to be "toxic" under CEPA are recommended for . EPA's Substance Registry Services (SRS) database can be used to search for a specific chemical name or Chemical Abstract Service (CAS) registry number. * Chemical Abstract Service Number. EHSs are listed in 40 CFR Part 355. JavaScript appears to be disabled on this computer. LIST OF HAZARDOUS SUBSTANCES (Alphabetical Order) Name CAS Number Abamectin 71751-41-2 Acenaphthene 83-32-9 Acenaphthylene 208-96-8 Acephate 30560-19-1 Acetaldehyde 75-07- Acetamide 60-35-5 Acetic acid 64-19-7 Acetic anhydride 108-24-7 Acetone 67-64-1 Acetone cyanohydrin 75-86-5 . DOT Hazardous Materials Table . This is the list of extremely hazardous substances defined in Section 302 of the U.S. You have reached the threshold for gasoline storage which is 75000 gallons and 100000 gallons for diesel fuel at a retail gas station. Table of Hazardous Materials and Special Provisions. 1600 Clifton Road NE, Mailstop S102-1. Appendix A to 1910.119 - List of Highly Hazardous Chemicals, Toxics and Reactives (Mandatory) This appendix contains a listing of toxic and reactive highly hazardous chemicals which present a potential for a catastrophic event at or above the threshold quantity. A .gov website belongs to an official government organization in the United States. If you have comments or suggestions on how to improve the www.ecfr.gov website or have questions about using www.ecfr.gov, please choose the 'Website Feedback' button below. result, it may not include the most recent changes applied to the CFR. For more information, see 40 CFR 355.61 . Provide a completed MERC Tier II form listing the extremely hazardous substances that you have at your facility. ** Threshold Quantity in Pounds (Amount necessary to be covered by this standard). The EPA has a comprehensive EHS list that shows all the chemicals that should be reported. These substances in quantities at or above the Threshold Planning Quantity (TPQ) require certain emergency planning activities to be conducted. If you have questions or comments regarding a published document please "Hazardous substance" means a substance on the list that appears at 40 CFR 302.4.

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