(a) In general (1) The Administrator shall, by not later than January 1, 1992, promulgate regulations establishing standards and requirements regarding the use and disposal of class I substances during the service, repair, or disposal of appliances and industrial process refrigeration. Such standards and requirements shall become effective not later than July 1, 1992. (2) The Administrator shall, within 4 years after November 15, 1990, promulgate regulations establishing standards and requirements
(a) The Commissioner may, in accordance with § 170.35(b)(4) , publish a notice in the FEDERAL REGISTER determining that a substance is not GRAS under the conditions of its intended use and is a food additive subject to section 409 of the Federal Food, Drug, and Cosmetic Act. (b) (1) The Commissioner, on his own initiative or on the petition of any interested person, pursuant to part 10 of this chapter, may issue a notice in the FEDERAL REGISTER proposing to determine that a substance is not GRAS