Rules Log Database (RLDB)

This page last reviewed April 22, 2010

The Rules Log Database (RLDB) chronicles the history of rules controlling sources of air pollution, as developed and adopted by California's 35 air pollution control and air quality management districts. The RLDB lists the dates the district board first adopted and subsequently amended or rescinded a rule, and the date the California Air Resources Board received the rule. The RLDB also lists the date the rule was submitted, on request of the district, to the United States Environmental Protection Agency (U.S. EPA) for inclusion to the State Implementation Plan (SIP). Finally, the RLDB gives the dates and types of U.S. EPA rulemaking actions on the rule.

Currently, the RLDB contains records for rules that are intended by the districts to be revisions to the SIP and which were adopted or amended during the period January 1, 1981, to the present.

To access the RLDB, select a district from the list:  

After you have selected a district, you may select one of the following items and then click the "Go!" button to process your request. If you do not select any options, and click on "Go" you will get a list of the regulations, rules and titles for the district you selected. From that list, you will be able to go directly to the individual rule of your choice.

  • For a complete history of all the rules from the district you have selected, check this box -
  • If you know the specific rule from the selcted district that you wish to look up, input the rule number.
    Enter Rule Number Here:

Alternately, you may search the rule titles in all 35 districts for specific subjects by entering a keyword here (this search will ignore any district you selected above).
Enter Keyword Here:

click on


For information regarding U.S. EPA guidance on rule development for rules intended to be part of the State Implementation Plan, click here: Little Blue Book

Note: The California Air Resources Board cannot guarantee the accuracy of the record information contained in the Rules Log Database. If you have any questions or comments regarding the record information, please contact: Dave Brown.



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