The U.S. refining industry is one year into the U.S. Environmental Protection Agency (EPA) 40 CFR Part 63 CC (MACT CC) requirement via the Refinery Sector Rule (RSR). This rule forces refineries to make flare minimisation a priority, as well as monitor and report when regulated material does flow to the flare and the destruction and removal efficiency (DRE) at which the elevated flares operate (96.5% combustion or 98% DRE). The RSR also requires active monitoring and immediate response to maintain these minimum efficiencies, therefore increasing (on average quadrupling) data collection and reporting requirements.
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