This information is intended for use by any facility applying for a Title V permit or in possession of a Title V permit that contains references to two different versions of the same South Coast AQMD rule.

Several South Coast Air Quality Management District (South Coast AQMD) rules have been approved by the Environmental Protection Agency (EPA) into the State Implementation Plan (SIP) [40 CFR Part 52, Subpart F] and are considered federally enforceable for the purposes of Title V. However, some of the SIP-approved rules have been recently amended and are no longer the most current versions in effect.

While South Coast AQMD awaits SIP-approval of the more recent amended rules, EPA requires the Title V permit to refer to both versions of the same rule. In the meantime, facilities are required to comply with each SIP-approved rule and the most recent version of the same applicable rule.

To better understand the differences between the outdated, but federally enforceable, SIP-approved versions and the most current, locally enforceable versions of these rules, it is important for facilities to have access to both generations of rule language. While the newer rule language is currently in South Coast AQMD’s Rules and Regulations, the language for the older SIP-approved versions is only available through the South Coast AQMD’s library archives. To help Title V facilities more easily obtain copies of the older SIP-approved rules, electronic versions have been created and they are now available for downloading from the table below. This table will be periodically updated to reflect SIP-approvals of more current versions of South Coast AQMD rules.

* It is important to note that these rules are NOT the most current versions in effect. To obtain the most current versions of these rules, refer to the "Rules & Regulations" section of this Web site.