extremely hazardous substances list excelextremely hazardous substances list excel

Emergency Planning and Community Right-to-Know Act (42 U.S.C. 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. 4, 1992; 76 FR 80738, Dec. 27, 2011; 84 FR 15102-15104, April 15, 2019], Occupational Safety & Health Administration, List of Highly Hazardous Chemicals, Toxics and Reactives (Mandatory), Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Severe Storm and Flood Recovery Assistance, Ammonia solutions (>44% ammonia by weight), 3-Bromopropyne (also called Propargyl Bromide), Cellulose Nitrate (concentration >12.6% nitrogen), Chlorodiethylaluminum (also called Diethylaluminum Chloride), Ethyl Methyl Ketone Peroxide (also Methyl Ethyl Ketone Peroxide; concentration >60%), Hydrogen Peroxide (52% by weight or greater), Methyl Ethyl Ketone Peroxide (concentration >60%), Nitrogen Tetroxide (also called Nitrogen Peroxide), Oleum (65% to 80% by weight; also called Fuming Sulfuric Acid), Peracetic Acid (concentration >60% Acetic Acid; also called Peroxyacetic Acid), Perchloric Acid (concentration >60% by weight), Peroxyacetic Acid (concentration >60% Acetic Acid; also called Peracetic Acid), Phosphorus Oxychloride (also called Phosphoryl Chloride), Phosphoryl Chloride (also called Phosphorus Oxychloride), Sulfur Trioxide (also called Sulfuric Anhydride), Sulfuric Anhydride (also called Sulfur Trioxide), 1910.119 App A - List of Highly Hazardous Chemicals, Toxics and Reactives (Mandatory). You have reached the threshold for gasoline storage which is 75000 gallons and 100000 gallons for diesel fuel at a retail gas station. 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. We hope this information is helpful. Facilities provide either a Tier I or Tier II form. Microsoft Edge, Google Chrome, Mozilla Firefox, or Safari. . Appendix A to 1910.119 - List of Highly Hazardous Chemicals, Toxics and Reactives (Mandatory). For more information, see 40 CFR part 370and EPCRAAmendmentsand EPCRA Guidance Documents and Fact Sheets. * Only the statutory or final RQ is shown. JavaScript appears to be disabled on this computer. An official website of the United States government. Last updated on June 14, 2022 This rule established the list of EHSs and their threshold planning quantities (TPQs). developer resources. 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. 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 The TPQ does not default to 10,000 pounds for non-powder, non-molten, non-solution form. 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. 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)-. This material is a reactive solid. 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). 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 For more information, see 40 CFR 355.61 . b. 355.11 To what substances do the emergency planning requirements of this subpart apply: 40:30.0.1.1.11.2.13.3: SECTION 355.12 355.12 What quantities of extremely hazardous substances trigger emergency planning requirements: 40:30.0.1.1.11.2.13.4: SECTION 355.13 355.13 How do I calculate the quantity of an extremely hazardous substance present . EHSs are listed in 40 CFR Part 355. List of Extremely Hazardous Substances CAS # Chemical Name Threshold Quantity (TQ) (pounds) (Industry Use Only) Reportable Quantity (pounds) (Spill/Release) Threshold Planning Quantity (pounds) (LEPC Use Only) 75-86-5 Acetone Cyanohydrin 500 10 1,000 1752-30-3 107-02-8 Acrolein 500 1 500 79-06-1 107-13-1 Acrylonitrile 500 100 10,000 Amendment Section 112 (r) of the Clean Air Act is the Risk Management Plan (RMP) Rule by the EPA. However, the actual meanings of these . View the most recent official publication: These links go to the official, published CFR, which is updated annually. will bring you directly to the content. Clean Air Act 1990 Amendments Hazardous Air Pollutants . JavaScript appears to be disabled on this computer. 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. Update: The following update relating to this announcement has been issued: October 29, 2010 - This RFA has been reissued as (RFA-ES-10-010). The TPQ does not default to 10,000 pounds for non-powder, non-molten, non-solution form. Subscribe to: Changes in Title 40 :: Chapter I :: Subchapter J :: Part 355 :: Appendix Appendix A to Part 355. 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. Phone: 1-800-CDC-INFO 888-232-6348 (TTY) Email: Contact CDC-INFO. Little Pro on 2023-01-17 1503. Implemented by the Administrative Council on Toxics Use Reduction. This is a one-time submittal. Facilities must also submit an annual inventory of these chemicals by March 1 of each year to their State or Tribal Emergency Response Commission (SERC or TERC), Local or Tribal Emergency Planning Committee (LEPC or TEPC), and local fire department. April 22, 1987: Extremely Hazardous Substance (EHS) List and Threshold Planning Quantities; Emergency Planning and Release Notification Requirements; Final Rule. Sections 301-303 of EPCRA require facilities to have emergency response plans initially focused on 406 extremely hazardous substances (EHSs) listed by the Environmental Protection Agency (EPA) in 1987 (now currently 355 chemicals). sara title iii/epcra extremely hazardous substances toxic substances control act (tsca) inventory tsca inventory update rule (iur) tsca significant new use rule (snur) . 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. 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 . Secure .gov websites use HTTPS This content is from the eCFR and may include recent changes applied to the CFR. Serious Injury and Substantial Property Damage. The health effects of hazardous chemicals are often less clear than the physical hazards. This document is available in the following developer friendly formats: Information and documentation can be found in our "Published Edition". guide. b. Official websites use .gov Health Hazards . 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. The TPQ does not default to 10,000 pounds for non-powder, non-molten, non-solution form. formatting. Please click here to see any active alerts. 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. 11002). Accidental release prevention requirements under CAA 112(r) (40 CFR Part 68). Obtain the list of "Extremely Hazardous Determine if you have any of these substances in an amount greater than the threshold planning quantity (TPQ). It includes a number of chemicals that are also on the CERCLA hazardous substances list (for instance, acetone cyanohydrin). The data were provided by the United States Environmental Protection Agency (EPA). Request For Applications (RFA) Number: RFA-ES-09-012 For chemicals that are solids, there may be two TPQs given (e.g., 172.1 - 172.822. The list includes the threshold planning quantities (TPQs or minimum limits) for each substance. Most States require the Tier II form. An official website of the United States government. Emergency Planning and Community Right-to-Know Act (EPCRA); Comprehensive Environmental Response, Compensation and Liability Act (CERCLA); and. (November 17, 1986, and February 15, 1990.). 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). Official websites use .gov full text search results 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. Notes: a. is available with paragraph structure matching the official CFR ** Threshold Quantity in Pounds (Amount necessary to be covered by this standard). Title 40 was last amended 2/27/2023. (a) Listed hazardous substances. EPA's Substance Registry Services (SRS) database can be used to search for a specific chemical name or Chemical Abstract Service (CAS) registry number. For more information, see 40 CFR 355.61. a. Following the listing of elements and compounds is a listing of waste streams. poisons are substances that have a high potential for causing harm to humans and includes strychnine, cyanide and hazardous laboratory reagents, agricultural and veterinary chemicals. Background and more details are available in the * Only the statutory or final RQ is shown. JavaScript appears to be disabled on this computer. Extremely hazardous substances - superfund chemical profiles Table of Hazardous Materials and Special Provisions. b. When discussing the health effects of chemicals, two terms are often used interchangeably - toxicity and hazard. 11002). 172.101 - 172.102. Share sensitive information only on official, secure websites. The official, published CFR, is updated annually and available below under They include acutely toxic, corrosive, flammable, dangerously reactive and oxidizing gases. This includes their synonyms and threshold quantities (in pounds) to help assess if a process is subject to the RMP rule. Subpart B. Federal Drug Administration Regulations . . DOE computer systems are provided for the processing of official U.S. Government information only. No changes found for this content after 1/03/2017. OSHA Highly Hazardous . - 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)-. It includes a number of chemicals that are also on the CERCLA hazardous substances list (for instance, acetone cyanohydrin). The National Institute of Environmental Health Sciences (NIEHS) is announcing the continuation of the Superfund Hazardous Substance Research and Training Program [referred to as Superfund Research Program (SRP) Centers]. Refer to the List of Hazardous Substances and Reportable Quantities (Excel) when shipping hazardous materials. Displaying title 40, up to date as of 3/02/2023. ECHA adds nine hazardous chemicals to Candidate List. This contact form is only for website help or website suggestions. 7. [57 FR 7847, Mar. 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. 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 . "MSDS" means material safety data sheet and has the same meaning as prescribed at 40 CFR 370.02. 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 . On the hazardous substances list, you can find the English name and CAS No. This material is a reactive solid. 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. Regulation Y extremely hazardous substance (EHS)? The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. The hazardous waste categories include acutely hazardous waste, extremely hazardous waste, non-RCRA hazardous waste, RCRA hazardous waste, special waste and universal waste. SUPERFUND HAZARDOUS SUBSTANCES BASIC RESEARCH PROGRAM Release Date: November 18, 1998 RFA: ES-99-001 P.T. Carcinogenicity6 - Single or combined . The in-page Table of Contents is available only when multiple sections are being viewed. It provides the regulations and statutes applicable to the chemical. To minimize risks to health, safety and security, prevent pollution and reduce generation of hazardous wastes from its facilities and mission activities the NIH has developed guidance documents, plans and polices to reduce procurement and use of specific laboratory chemicals that posed excessive risks and for which acceptable, less hazardous alternatives were . This list is found in 40 CFR 355, Appendix A. Contact Us to ask a question, provide feedback, or report a problem. 73 FR 65462, Nov. 3, 2008, unless otherwise noted. 1600 Clifton Road NE, Mailstop S102-1. DTSC has provided a self-paced internet course on hazardous waste identification to further assist in properly identifying waste. EHSs are listed in 40 CFR Part 355. 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. If you want to request a wider IP range, first request access for your current IP, and then use the "Site Feedback" button found in the lower left-hand side to make the request. Choosing an item from Provide a completed MERC Tier II form listing the extremely hazardous substances that you have at your facility. 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. Reporting requirements for releases of CERCLA chemicals are in 40 CFR part 302, with list of CERCLA hazardous substances in 40 CFR 302.4. This should only be necessary once for each IP address you access the site from. Column 1 of TABLE 1, entitled "Hazardous substance", contains the names of those elements and compounds that are hazardous substances. If you would like to comment on the current content, please use the 'Content Feedback' button below for instructions on contacting the issuing agency. April 22, 1987: Extremely Hazardous Substance (EHS) List and Threshold Planning Quantities; Emergency Planning and Release Notification Requirements; Final Rule. Learn more about the eCFR, its status, and the editorial process. citations and headings ( b) This part is written in a special format to make it easier to understand the regulatory requirements. This button displays the currently selected search type. Please check with your state, tribe, or territory for any additional reporting requirements. Part 1 - Substances that are not solutions Part 2 - Substances that are solutions Legend: A = aquatically toxic C = combustible E = likely to explode F = pool fire hazard A lock (LockA locked padlock) or https:// means youve safely connected to the .gov website. Comments or questions about document content can not be answered by OFR staff. (a) Except as provided in subsection (d), each owner or operator of a facility required to report under section 312 of the federal act and K.A.R. 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. 301 CMR 41.00: Toxic or Hazardous Substances List. * Only the statutory or final RQ is shown. here. Very hazardous and extremely reactive and many are carcinogens. [1] Updates as of 2006 can be seen on the Federal Register, 71 FR 47121 (August 16, 2006).[2]. May cause fire or explosions. The EPA has a comprehensive EHS list that shows all the chemicals that should be reported. 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. An official website of the United States government. Hazardous Materials Regulations. That is, two substances, or two forms of a substance, do not have the same CAS Registry Number. 355. The Office of the Federal Register publishes documents on behalf of Federal agencies but does not have any authority over their programs. The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. The list can be found as an appendix to 40 C.F.R. Sulfuric acid is an extremely hazardous substance (EHS) subject to reporting requirements when stored in amounts in excess of its threshold planning . RQ for this chemical was adjusted on September 11, 2006. For diesel fuel (all grades combined) at a retail gas station, the threshold level is 100,000 gallons (or approximately 378,500 liters), if the tank(s) was stored entirely underground and the tank(s) was in compliance at all times during the preceding calendar year with all applicableUST requirements at 40 CFR part 280 or requirements of the State UST program approved by the Agency under 40 CFR part 281. 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. SRP Center grants will support problem-based, solution-oriented research Centers that consist of multiple, integrated . Substances that are determined to be "toxic" under CEPA are recommended for . For Extremely Hazardous Substances (EHSs) (40 CFR part 355. We recommend you directly contact the agency responsible for the content in question. Hazardous gases are those gases that are sufficiently toxic and/or reactive to meet one of the definitions given below. Chapter 21I) planning and reporting requirements. (52 FR 13378). 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. Note: EPA was required to publish this Interim Final Rule 30 days after EPCRA was passed. A .gov website belongs to an official government organization in the United States. 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 Emergency Planning and Community Right-to-Know Act (EPCRA). A .gov website belongs to an official government organization in the United States. "LEPC" means "Committee," as prescribed at A.R.S. Appendix F: CERCLA hazardous substance chemical categories. The list can be found as an appendix to 40 C.F.R. 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.

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