See the latest EHS federal and state regulatory updates due to COVID-19

The San Joaquin Valley Air Pollution Control District (SJVAPCD or District) held public scoping meetings on December 5, 2019 to present, discuss, and receive feedback on potential amendments to District Rule 4306 (Boilers, Steam Generators, and Process Heaters - Phase 3) and Rule 4320 (Advanced Emission Reduction Options for Boilers, Steam Generators, and Process Heaters Greater than 5.0 MMBtu/hr), and to District Rule 4702(Internal Combustion Engines).

SJVAPCD is reviewing these rules as part of the 2018 PM2.5 Attainment Plan commitment to reduce NOx emissions by 0.05 tons per day. For Rules 4306 and 4320, SJVAPCD has suggested reducing the NOx emission limits for each category of boilers, oil field steam generators, and petroleum refinery boilers and process heaters as shown in the table below.

Rules 4306 and 4320 table

For Rule 4702, SJVAPCD is looking at potentially reducing the NOx emission limit for non-agricultural IC engines to anywhere from 11 to 5 ppmv, depending on the technologically achievable and economically feasible controls.

SJVAPCD must achieve a Governing Board action date in 2020; the District anticipates holding more public workshops prior to the 2020 Governing Board hearing. If the amendments are adopted, the implementation will begin in 2024.

A Socioeconomic Impact Analysis will be conducted by an independent consultant to analyze the impacts of proposed regulation on Valley economy. The consultant selection is expected to occur by the end of 2019 with analysis to begin in early 2020. The results of the analysis will be made publicly available and will be included in the District's determination and rule amendment package.

If you have any comments, please Ross Badertscher at or (559) 230-5812 for Rules 4306 and 4320, and Avi Anderson at or (559) 230-5800 for Rule 4702.

If you have specific questions please contact us at (661) 282-2200.