{"data":{"id":"us/40-cfr-751.303","jurisdiction":"us","citation":"40 CFR 751.303","heading":"Definitions.","body":"The definitions in subpart A of this part apply to this subpart unless otherwise specified in this section. In addition, the following definitions apply:\nDistribute in commerce has the same meaning as in section 3 of the Act, except that the term does not include retailers for purposes of § 751.321 and § 751.323.\nInterim ECEL means a concentration of airborne TCE of 0.2 parts per million (ppm) calculated as an eight (8)-hour time weighted average (TWA) that will be in place only for the timeframes indicated for specified conditions of use, after which prohibitions would take effect.\nInterim ECEL action level means a concentration of airborne TCE of 0.1 parts per million (ppm) calculated as an eight (8)-hour time-weighted average (TWA).\nSite-limited has the same meaning as in 40 CFR 711.3.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER R—TOXIC SUBSTANCES CONTROL ACT","PART 751—REGULATION OF CERTAIN CHEMICAL SUBSTANCES AND MIXTURES UNDER SECTION 6 OF THE TOXIC SUBSTANCES CONTROL ACT","Subpart D—Trichloroethylene (TCE)"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"463a02c9c1b35250768125357ddb4cf69b52742b82bd8635cde0bb475c8efaa3","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-751.301","next":"us/40-cfr-751.305"},"notice":"GroundRules: Original legal text. Not legal advice."}