2 December 2019 : United States Environmental Protection Agency (EPA), granted the first two manufacturer requests for risk evaluations for DIDP and DINP. If the requests are not withdrawn within 30 days, both DIDP and DINP will enter the risk evaluation process. Manufacturer-requested risk evaluations are conducted in the same manner as other risk evaluations conducted under section 6(b)(4)(A) of the Toxic Substances Control Act (TSCA)

EPA received the two manufacturer requests to conduct risk evaluations of diisodecyl phthalate (DIDP) and diisononyl phthalate (DINP) from the American Chemistry Council’s High Phthalates Panel in May 2019. Both DIDP and DINP belong to a family of chemicals called phthalates and are commonly used as plasticizers in the production of plastic and plastic coating to increase flexibility. They were identified in the 2014 Update to the TSCA Work Plan.

In August 2019, EPA asked for public comment on the two manufacturer requests and based on the comments received and EPA’s review of the requests, EPA concluded that the Agency had all information needed to conduct both risk evaluations. EPA has granted both requests and intends to initiate the risk evaluations shortly.

Reference:https://www.epa.gov/chemicals-under-tsca/epa-grants-first-two-manufacturer-requests-risk-evaluation-under-toxic