By rule published in the Federal Register today, EPA is staying the New Source Performance Standards (NSPS) and Emissions Guidelines (EG) final rules for municipal solid waste landfills, in their entirety, for 90 days pending reconsideration. The rules are found at 40 CFR Part 60, Subparts Cf and XXX and had been published on August 19, 2016. The 90-day period is effective from today, May 31, through August 29, 2017.
In a letter dated May 5, 2017, EPA announced that it would be reconsidering the following topics: (1) tier 4 surface emission monitoring; (2) annual liquids reporting; (3) corrective action timeline procedures; (4) overlapping applicability with other rules; (5) the definition of cover penetration; and (6) design plan approval.
This stay has no effect on the existing rules at 40 CFR Part 60, Subparts WWW and Cc, which municipal solid waste landfills must continue to comply with.