The definitions in subpart A of this part apply to this subpart unless otherwise specified in this section. In addition, the following definitions apply:

Distribute 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.

Interim 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.

Interim 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).

Site-limited has the same meaning as in 40 CFR 711.3.