Under the Toxic Substances Control Act (TSCA) and related implementing regulations, the U.S. Environmental Protection Agency (EPA) is initiating a prioritization process for 20 chemical substances, including formaldehyde, as candidates for designation as High Priority Substances for risk evaluation.

Once the list is finalized as high priority chemicals, the agency will move into the scoping phase for conducting a risk evaluation. The publication of a final scoping phase, which will identify conditions of use that will be evaluated, triggers the fees rule, which can require manufacturers and downstream users to pay a fee to cover the cost of conducting the risk evaluation. Later, once the agency has published a final risk evaluation identifying the chemical as an unreasonable risk for a specified use, the agency will move into managing that risk. This could include any number of restrictions from requiring labeling to banning the use of the chemical for a specified use or all uses.

The following 20 chemicals are candidates for designation as High Priority Substance candidates:

  • 1,3-Butadiene, CAS RN 106-99-0
    Docket number: EPA-HQ-OPPT-2018-0451
  • Butyl benzyl phthalate (BBP) (1,2-Benzenedicarboxylic acid, 1-butyl 2-(phenylmethyl) ester), CAS RN 85-68-7
    Docket number: EPA-HQ-OPPT-2018-0501
  • Dibutyl phthalate (DBP) (1,2-Benzenedicarboxylic acid, 1,2-dibutyl ester), CAS RN 84-74-2
    Docket number: EPA-HQ-OPPT-2018-0503
  • 1,1-Dichloroethane, CAS RN 75-34-3
    Docket number: EPA-HQ-OPPT-2018-0426
  • 1,2-Dichloroethane, CAS RN 107-06-2
    Docket number: EPA-HQ-OPPT-2018-0427
  • 1,2-Dichloropropane, CAS RN 78-87-5
    Docket number: EPA-HQ-OPPT-2018-0428
  • Dicyclohexyl phthalate (1,2-Benzenedicarboxylic acid, 1,2-dicyclohexyl ester), CAS RN 84-61-7
    Docket number: EPA-HQ-OPPT-2018-0504
  • Di-ethylhexyl phthalate (DEHP) (1,2-Benzenedicarboxylic acid, 1,2-bis(2-ethylhexyl) ester), CAS RN 117-81-7
    Docket number: EPA-HQ-OPPT-2018-0433
  • Di-isobutyl phthalate (DIBP) (1,2-Benzenedicarboxylic acid, 1,2-bis(2-methylpropyl) ester), CAS RN 84-69-5
    Docket number: EPA-HQ-OPPT-2018-0434
  • Ethylene dibromide (Ethane, 1,2-dibromo-), CAS RN 106-93-4
    Docket number: EPA-HQ-OPPT-2018-0488
  • Formaldehyde, CAS RN 50-00-0
    Docket number: EPA-HQ-OPPT-2018-0438
  • 1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta [g]-2-benzopyran (HHCB), CAS RN 1222-05-5
    Docket number: EPA-HQ-OPPT-2018-0430
  • 4,4′-(1-Methylethylidene) bis [2, 6-dibromophenol] (TBBPA), CAS RN 79-94-7
    Docket number: EPA-HQ-OPPT-2018-0462
  • o-Dichlorobenzene (Benzene, 1,2-dichloro-), CAS RN 95-50-1
    Docket number: EPA-HQ-OPPT-2018-0444
  • p-Dichlorobenzene (Benzene, 1,4-dichloro-), CAS RN 106-46-7
    Docket number: EPA-HQ-OPPT-2018-0446
  • Phosphoric acid, triphenyl ester (TPP), CAS RN 115-86-6
    Docket number: EPA-HQ-OPPT-2018-0458
  • Phthalic anhydride (1,3-Isobenzofurandione), CAS RN 85-44-9
    Docket number: EPA-HQ-OPPT-2018-0459
  • trans-1,2- Dichloroethylene (Ethene, 1,2-dichloro-, (1E)-), CAS RN 156-60-5
    Docket number: EPA-HQ-OPPT-2018-0465
  • 1,1,2-Trichloroethane, CAS RN 79-00-5
    Docket number: EPA-HQ-OPPT-2018-0421
  • Tris(2-chloroethyl) phosphate (TCEP) (Ethanol, 2-chloro-, 1,1′,1″-phosphate), CAS RN 115-96-8,
    Docket number: EPA-HQ-OPPT-2018-0476

For more information, contact RV Industry Association’s Director of Government Affairs Mike Ochs at [email protected].