Once-In-Always-In is OUT

摘要

THE JANUARY 25, 2018 EPA memo on "Reclassification of Major Sources as Area Sources" significantly changes an Environmental Protection Agency (EPA) policy in place since 1995. The EPA and State Agencies have been operating on a Once-In-Always-In (OIAI) policy for emissions of hazardous air pollutants (HAPs) for the past 23 years.