Air Toxics

The California Air Resources Board (ARB) has promulgated Airborne Toxic Control Measures (ATCMs) for several source categories. Each ATCM is codified under Titles 13 or 17 of the California Code of Regulations and is available on the ARB website http://www.arb.ca.gov/toxics/atcm/atcm.htm.

When the state adopts an ATCM, the District can either implement the state ATCM or adopt a local rule consistent with the ATCM. The following table shows the rules the District has adopted for corresponding ATCMs.

RULE No.	RULE TITLE	STATE AIR TOXICS CONTROL MEASURE
316	Storage and Transfer of Gasoline	Benzene Airborne Toxic Control Measure For Retail Service Stations
335	Control of Hexavalent Chromium in Cooling Towers	Chromate Treated Cooling Towers
340	Control of Dioxins from Medical Waste Incinerators	Dioxins Airborne Toxic Control Measure - Medical Waste Incinerators
336	Control of Ethylene Oxide Emissions	Ethylene Oxide Airborne Toxic Control Measure for Sterilizers And Aerators

The District has elected to implement several state ATCMs directly without adopting a rule. The majority of the state ATCMs and federal NESHAPs (sometimes referred to as Maximum Achievable Control Technology or MACT) are not adopted as a District rule. For more information on ATCMs and MACTs, download one of these files: atcm-mact.pdf or atcm-mact.zip, or contact Doug Grapple at 961-8883 or grappled@sbcapcd.org, or the Rulemaking Section or the Engineering Division at 961-8800 or engr@sbcapcd.org.

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