In April 2016, the US EPA reclassified San Diego County from a Marginal to a Moderate nonattainment area for Ozone.  The San Diego Air Pollution Control District (SDAPCD) is preparing a draft Statewide Implementation Plan (SIP) to comply with the 2008 national ozone standard.  The SIP will introduce regulations for Reasonably Available Control Technology (RACT) and Reasonably Available Control Measures (RACM) and is designed to bring the county into alignment with the State and National Ambient Air Quality Standards.  A public meeting was held on September 8th to present and discuss the draft plan.  Additional details and copies of the draft plan can be found here.

In an effort to comply with the State ozone standards the SDAPCD has proposed revisions to its Regional Air Quality Strategy (RAQS).  The draft RAQS incorporates new information on emissions trends, air quality, and new control measures.  New measures have been proposed for new stationary engines, large commercial composting operations, marine coating operations, aerospace coating operations, and natural gas fired residential type furnaces.  In addition, previously rejected measures regarding new small and medium boilers will be reassessed for feasibility.  The measures have been proposed for evaluation, and if approved will be developed into new or amended rules within 3 years.