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  2. EPA list of extremely hazardous substances - Wikipedia

    en.wikipedia.org/wiki/EPA_list_of_extremely...

    This is the list of extremely hazardous substances defined in Section 302 of the U.S. Emergency Planning and Community Right-to-Know Act (42 U.S.C. § 11002). The list can be found as an appendix to 40 CFR 355. [1] Updates as of 2006 can be seen on the Federal Register, 71 FR 47121 (August 16, 2006). [2]

  3. Toxicity category rating - Wikipedia

    en.wikipedia.org/wiki/Toxicity_category_rating

    In 40 CFR 156.62, the EPA established four Toxicity Categories for acute hazards of pesticide products, with "Category I" being the highest toxicity category (toxicity class). Most human hazard, precautionary statements, and human personal protective equipment statements are based upon the Toxicity Category of the pesticide product as sold or ...

  4. Toxicity class - Wikipedia

    en.wikipedia.org/wiki/Toxicity_class

    Class II: moderately hazardous Class III: slightly hazardous The system is based on LD50 determination in rats, thus an oral solid agent with an LD50 at 5 mg or less/kg bodyweight is Class Ia, at 5–50 mg/kg is Class Ib, LD50 at 50–2000 mg/kg is Class II, and at LD50 at the concentration more than 2000 mg/kg is classified as Class III.

  5. DEA list of chemicals - Wikipedia

    en.wikipedia.org/wiki/DEA_list_of_chemicals

    It also maintains List I of chemicals and List II of chemicals, which contain chemicals that are used to manufacture the controlled substances/illicit drugs. The list is designated within the Controlled Substances Act [ 1 ] but can be modified by the U.S. Attorney General as illegal manufacturing practices change.

  6. EPA may list PFAS as hazardous substance - AOL

    www.aol.com/epa-may-list-pfas-hazardous...

    Feb. 3—SANTA FE — The U.S. Environmental Protection Agency on Thursday announced two proposed rules "to ensure that certain per- and polyfluoroalkyl substances (PFAS), also known as 'forever ...

  7. Toxic Substances Control Act of 1976 - Wikipedia

    en.wikipedia.org/wiki/Toxic_Substances_Control...

    The Toxic Substances Control Act (TSCA) is a United States law, passed by the 94th United States Congress in 1976 and administered by the United States Environmental Protection Agency (EPA), that regulates chemicals not regulated by other U.S. federal statutes, [1] including chemicals already in commerce and the introduction of new chemicals.

  8. EPA proposes some ‘forever chemicals’ be considered hazardous

    www.aol.com/epa-proposes-forever-chemicals...

    Under EPA regulations, to be considered a “hazardous constituent,” studies must show that the chemical is a threat to human health or “other life forms” and demonstrate that the chemical ...

  9. List of extremely hazardous substances - Wikipedia

    en.wikipedia.org/?title=List_of_extremely...

    Pages for logged out editors learn more. Contributions; Talk; List of extremely hazardous substances