Rule Development

The District develops and amends its rules as required by state and federal law and in the interest of fulfilling its mission to protect public health from the harmful effects of air pollution.

Current Rule Development Activities

Rule Expected Hearing Date Documents
Rule 2.31 Solvent Cleaning and Degreasing July 14, 2021

Notice of Public Hearing
Proposed Language
Staff Report

Upcoming Workshops

  • The Yolo-Solano Air Quality Management District staff will hold a public workshop to discuss the proposed amendments to the following District Rules:
    Rule 4.4 – Hearing Boards Fees                  Proposed Language, Proposed Language (redline)                                                                                                        Staff Report

    Rule 5.1 – Procedures Before the               Proposed Language, Proposed Language (redline)
                     Hearing Board                              Staff Report

    Rule 5.2 – Upset/Breakdown Conditions:  Proposed Language, Proposed Language (redline)
                      Emergency Variance                   Staff Report

    The public workshop will be held via teleconference on Tuesday, August 3, 2021 at 2:00 p.m. the agenda is available here and the workshop can be accessed:
                     Phone: (669) 900-9128
                     Meeting ID: 872 4390 5516

    The District invites written public comments to be submitted to the Compliance Manager, Jeff Pinnow, by email at, or by mail to Yolo-Solano Air Quality Management District, 1947 Galileo Ct., Ste. 103; Davis CA 95618. Comments are to be received by the District no later than August 17, 2021. A copy of the public notice is available here.

If you would like to be added to the District’s mailing list for future rule development notices, please e-mail Paul Hensleigh at

Recent Rule Adoptions and Revisions

Rule Language Date Adopted Documents
Rule 3.26: Oil and Gas Registration

October 9, 2019

Staff Report

Rule 3.25 Federal New Source Review for New and Modified Major PM2.5 Sources

May 15, 2019

Staff Report

Rule 2.27: Large Boilers May 15, 2019 Staff Report
Rule 2.45 Boilers May 15, 2019 Staff Report
Rule 4.3: Fees – Asbestos Demolitions/Renovations December 12, 2018 Staff Report
Rule 2.29 Graphic Arts Printing Operations July 11, 2018 Staff Report

Potential Regulatory Measures

The California Health and Safety Code requires the District to post a list of all regulatory measures which may be adopted or amended in a calendar year.

2021 Regulatory Measure List