Section 79.24 - Termination of registration of additives(a) Registration may be terminated by the Administrator if the additive manufacturer requests such termination in writing.(b) Registration for an additive that has its purpose-in-use identified as a deposit control additive for use in gasoline pursuant to the requirements of § 79.21(d) may be terminated by the Administrator if the EPA determines that the detergent additive is not compliant with the gasoline deposit control requirements of 40 CFR 1090.260 . 85 FR 78465 , Dec. 4, 2020