Affirmative defense
Affirmative defense means, in the context of an enforcement proceeding, a response or defense put forward by a defendant, regarding which the defendant has the burden of proof, and the merits of which are independently and objectively evaluated in a judicial or administrative proceeding.
Source
40 CFR § 63.12005
Scoping language
Terms used in this subpart are defined in the Clean Air Act, in 63.2, and in this section, as follows: