District Rules Database

California's local air pollution control districts (APCD's) and air quality management districts (AQMD's) are now providing the California Air Resources Board with electronic versions of their district rules which regulate stationary sources in California. Ultimately, the quality of this database depends upon districts; please read our disclaimer. 

You may access a list of districts for viewing and downloading district rules and regulations. 

If you know a city name or ZIP code but do not know its associated district, please go to our district look-up by ZIP code, city or by county Database. 

Included below are links to rule development resources that district and ARB rule development staff should find useful.

• E-Reviews

Rules Log Database

ARB's database of rules that were submitted to U.S. EPA as revisions to the State Implementation Plan.

• Rules Log Database

SIP Action Log

U.S. EPA's listing of district rules which are in the State Implementation Plan. It includes the Federal Register citation, submittal and rulemaking dates, and a copy of the Applicable SIP rule.

• SIP Action Log

Federal Register

U.S. EPA's listing of Federal Register pages pertaining to environmental rulemakings. Entered by date back to 1994.

• Federal Register Environmental Documents

ARB SIP Forms

• Guidance Document for Correcting VOC & Other Rule Deficiencies

CAPCOA-ARB Protocol, "Processing Air Pollution Control District Rules and Regulations"

Describes district and ARB procedures for the development of rules.

• CAPCOA Protocol

All Feasible Measures

This document presents and explains the approach of "all feasible measures" as performance standards for stationary sources.

• Identification of Performance Standards for Existing Stationary Sources: A Resource Document

Best Available Control Technology (BACT) Clearinghouse

The Best Available Control Technology (BACT) Clearinghouse includes a searchable database for California BACT and "lowest achievable emission rate" (LAER) determinations dating back to 1985.

• Best Available Control Technology (BACT) Clearinghouse Program

Alternative California Test Methods

This page lists California test methods that have been determined by the U.S. EPA, Region IX, to be technically acceptable for inclusion into the State Implementation Plan. Some districts have books of test methods and laboratory methods. For more information, please contact the district.

• Alternative California Test Methods

District/ARB/U.S. EPA Contact Lists

• ARB & Local Air District Rule Development Contacts
• U.S EPA Rulemaking Staff Source Category Assignments
• Local Air District General Listing