Page Contents
	California Clean Air Act
	Triennial Progress Reports
	2006 Annual Progress Report

The California Clean Air Act (CCAA) of 1988 requires nonattainment areas to achieve and maintain the state ambient air quality standards by the earliest practicable date and local air districts to develop plans for attaining the state ozone, carbon monoxide, sulfur dioxide, and nitrogen dioxide standards. In compliance with the CCAA, the Sacramento Metropolitan Air Quality Management District (AQMD) prepared and submitted the 1991 Air Quality Attainment Plan (AQAP) to mainly address Sacramento County’s nonattainment status for ozone and carbon monoxide (CO), and although not required, particulate matter (PM10). The 1991 AQAP was designed to make expeditious progress toward attaining the state ozone standard and contained preliminary implementation schedules for control programs on stationary sources, transportation, and indirect sources, and a vehicle/fuels program. Sacramento County has met the ambient air quality standards for sulfur dioxide and nitrogen dioxide.

The CCAA also requires that by the end of 1994 and once every three years thereafter, the districts are to assess their progress toward attaining the air quality standards. The triennial assessment is to report the extent of air quality improvement and the amounts of emission reductions achieved from control measures for the preceding three year period. The AQMD shall also review and revise its attainment plan, if necessary, to correct for deficiencies in meeting progress, to incorporate new data or projections, to mitigate ozone transport, and to pursue the expeditious adoption of all feasible control measures.

The AQMD Board of Directors adopted the 2003 Triennial Report April 28, 2005. The report, prepared pursuant to California Health and Safety Code section 40925, identifies “all feasible measures” the AQMD will study or adopt over the next three years. The report also describes historical trends in air quality, updates emissions inventories, and evaluates the AQMD's implementation of air pollution control measures.

The rules included in the report would limit emissions from stationary sources including, but not limited to, process heaters, boilers, steam generators, space heaters, internal combustion engines, natural gas fired water heaters, fugitive emissions from oil and gas production and processing facilities and organic liquid loading. The Report also proposes programs to provide incentives for mobile heavy duty vehicles/engines, CEQA mitigation for construction and land use development and a Spare The Air program to reduce vehicle trips. Additional rules include, but may not be limited to, rules that would reduce emissions from degreasing and solvent cleaning operations, adhesives and sealants, solvents and unspecified coatings. In addition, control measures proposed for further study include, but may not be limited to, measures to limit emissions from automotive refinishing, concentrated animal feeding operations, food product manufacturing and processing, polyester resins, accelerated vehicle retirement, free gas caps and construction equipment. The negative declaration focuses on the potential secondary adverse environmental impacts of the measures that may be adopted. The initial study evaluated less than significant impacts on air quality, hazards/hazardous materials, water quality, noise and solid waste management.

The documents below were approved by the AQMD Board of Directors on April 28, 2005:

• the Triennial Report (PDF 243 Kb)
• Appendix A (PDF 273 Kb)
• the Negative Declaration and Initial Study (PDF 1.1 Mb)

In addition to the Triennial Progress Report requirement, the California Health and Safety Code, section 40924(a) requires the Air District to prepare an Annual Progress Report and submit the report to the California Air Resource Board (CARB) by December 31 of each year. At a minimum, the Annual Progress Report shall contain the proposed and actual dates for the adoption and implementation of each measure listed in the previous Triennial Plan. The 2006 Annual Progress provides updates for all the proposed District control programs, the schedule for adopting control measure commitments, and the evaluation of further study measures.

The AQMD Board of Directors adopted the 2006 Annual Progress Report (PDF) on October 25, 2007.