Final Rule Interpreting the Scope of Certain Monitoring Requirements for State and Federal Operating Permits Programs

The purpose of this action is to finalize interpretation of certain existing federal air program operating permits regulations. We proposed an interpretation of these rules on June 2, 2006, and requested comment. This final interpretation responds to the comments we received. The final interpretation is that the plain language and structure of certain sections of the operating permits regulations do not provide an independent basis for requiring or authorizing review and enhancement of existing monitoring in title V permits. We believe that other rules establish a basis for such review and enhancement. Such other rules include the monitoring requirements in certain other sections of the federal operating permits regulations (i.e., periodic monitoring), existing federal air pollution control standards, and regulations implementing State requirements to meet the ambient air quality standards. This final interpretation clarifies the permit content requirements relative to the operating permits regulations and facilitates permit issuance ensuring that air pollution sources can operate and comply with requirements.