40 CFR § 52.2686
Upset-breakdown reporting
June 9, 2020
(a) Chapter 4, Regulation 4.4 of the “Guam Air Pollution Control Standards and Regulations” (reporting of upsets and breakdowns) is disapproved since criteria for further enforcement action are not specified, thus permitting the Guam Administratorunlimited discretion.
[43 FR 59067, Dec. 19, 1978]