Flexible PAL Air Permits – New EPA Guidance Flexible “PAL” Air Permits – New EPA Guidance From the desk of Gavin Biebuyck, Principal, Air Quality Expert  Would your facility benefit from a flexible air permit allowing facility changes...

Air Quality Expert to Present to Millersville University OSEH students Lancaster, PA: Liberty Environmental Principal, Gavin Biebuyck, will guest lecture at Millersville University on March 6, 2018 to senior year students in the Occupational Safety and Environmental Health (OSEH) program. Biebuyck will present...

EPA Policy Memo Revisits “Once In, Always In” and Offers Regulatory Relief From the desk of Gavin Biebuyck, Principal at Liberty Environmental The US EPA issued a policy memo on January 25, 2018 revisiting their longstanding “Once In, Always In” (OIAI) policy...