40 CFR § 350.19
Provision of information to States
June 9, 2020
(a) Any State may request access to trade secrecy claims, substantiations, supplemental substantiations, and additional information submitted to EPA. EPA shall release this information, even if claimed confidential, to any State requesting access if:
(1) The request is in writing;
(2) The request is from the Governor of the State; and
(3) The State agrees to safeguard the information with procedures equivalent to those which EPA uses to safeguard the information.
(b) The Governor of a State which receives access to trade secret information under this section may disclose such information only to State employees.