A final EPA document becomes effective today (October 27, 2016) that provides “control technique guidelines” (CTGs) for limiting volatile organic compound emissions from select oil and natural gas industry sources. Initially proposed in September of 2015 (80 FR 56577), this final document provides affected state air quality agencies with default “reasonably achievable control technologies” (RACT) for regulating existing sources addressed in the document. The following sources within the on-shore production and processing segments of the oil and natural gas industry are addressed: pneumatic controllers, pneumatic pumps, compressors, equipment leaks, and fugitive emissions. The document also recommends emissions controls for storage vessels in all segments of the industry.

States and certain Indian tribes that contain “moderate” or more severe areas of non-attainment with the 2008 ozone National Ambient Air Quality Standard (NAAQS) must establish RACT requirements for existing sources addressed in the CTG document by October 27, 2018. Agencies can deviate from the CTGs with EPA’s approval. An appendix in the document recommends language for RACT-implementing rules.

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