Q526. What happens if an LDC goes out to a custody transfer city gate station year after year and finds that it has no leaking components?  Could EPA provide a sunset provision so that annual leak surveys would no longer be required?

A526. Equipment/component leaks are random in nature and minimal leaks in one year do not guarantee similar leak levels in the future.  There are no sunsetting provisions for individual emissions sources, only facilities.  EPA has provided provisions that allow facilities to stop reporting under certain conditions and with prior notification to EPA.  Please see 40 CFR 98.2(i) (1) – (i) (3).  EPA addressed sunset provisions in general in the proposal to the 2009 Mandatory Reporting of Greenhouse Gases Rule (74 FR 16478).