This action finalizes amendments to the new source performance standards
(NSPS) for the oil and natural gas sector. The Environmental Protection Agency (EPA) granted
reconsideration on the fugitive emissions requirements, well site pneumatic pump standards,
requirements for certification of closed vent systems (CVS) by a professional engineer (PE), and
the provisions to apply for the use of an alternative means of emission limitation (AMEL). This
final action includes amendments as a result of the EPA’s reconsideration of the issues
associated with the above mentioned four subject areas and other issues raised in the
reconsideration petitions for the NSPS, as well as amendments to streamline the implementation
of the rule. This action also includes technical corrections and additional clarifying language in
the regulatory text and/or preamble where the EPA concludes further clarification is warranted.