Region IX Administrator

United States Environmental Protection Agency

75 Hawthorne Street

San Francisco, California 94105

Attention: Mr. David P. Howekamp, Director

Air and Toxics Division

Dear Ms. Marcus:

Enclosed are three copies of revisions to the State of California

Implementation Plan for Achieving and Maintaining the National Ambient Air

Quality Standards. These revisions consist of new rules and amendments to existing rules of the following air pollution control and air quality

management districts (districts):

Bay Area Air Quality Management District

Monterey Bay Unified Air Pollution Control District

Sacramento Metropolitan Air Quality Management District San Joaquin Valley Unified Air Pollution Control District

San Luis Obispo County Air Pollution Control District

Santa Barbara County Air Pollution Control District

South Coast Air Quality Management District

Ventura County Air Pollution Control District

Yolo Solano Air Quality Management District

Also enclosed is Air Resources Board (ARB) Executive Order G-125-143

adopting the district rules as revisions to the California State

Implementation Pl.an (SIP). The districts are authorized to adopt and

enforce the rules by California Health and Safety Code Section 40001. The

ARB is authorized to adopt the rules as revisions to the SIP by Health and Safety Code Sections 39601, 39602, and 41650 through 41652. Enclosure

A

lists the specific rules that were adopted or amended by the districts and that have been adopted as revisions to the SIP by the ARB through Executive Order G-125-143.

To meet the United States Environmental Protection Agency (U.S. EPA) criteria for determining that rule submittals are administratively and technically complete, we have enclosed evaluations of the effects of the

rules on emissions, evaluations of the rules’ consistency with 40 CFR, Part 51, and all other supporting documentation provided to us to date by the affected districts. We have made every reasonable effort to obtain from

the districts all documentation necessary to comply with the U.S. EPA’s SIP

Completeness Policy.
Administrator

s receipt of a SIP revision, but no later than six months after the date by which the State is required to submit the revision, whether the rule packages within the revision are adequately complete to review for approvability. The ARB staff may receive additional materials from affected districts within the next few months. We will, of course, forward those additional materials to you.

If you have any questions or would like to discuss this SIP submittal, please contact Mr. Ronald A. Friesen, Assistant Chief, Stationary Source Division, at (916) 445-0656; or if I may be of assistance, contact me at

(916) 322-2890.

Sincerely,

Michael H. Scheible

Deputy Executive Officer

Enclosures
the following air pollution control and air quality management districts

(districts):

Bay Area Air Quality Management District

Monterey Bay Unified Air Pollution Control District

Sacramento Metropolitan Air Quality Management District San Joaquin Valley Unified Air Pollution Control District

San Luis Obispo County Air Pollution Control District

Santa Barbara County Air Pollution Control District

Ventura County Air Pollution Control DistrictYolo Solano Air Quality Management District

South Coast Air Quality Management District

WHEREAS, the districts are authorized by California Health and Safety Code Section 40001 to adopt and enforce the rules identified in Enclosure A; and

WHEREAS, the rules have been submitted to the Air Resources Board for

inclusion in the California State Implementation Plan as reasonably available control measures for limiting emissions of air pollutants within

the districts, or as administrative rules; and

WHEREAS, the Air Resources Board has determined that these rules are

necessary to meet the requirements of the Federal Clean Air Act; and

WHEREAS, the Air Resources Board is authorized by California Health andSafety Code Sections 39601, 39602, and 41650 through 41652 to adopt districtrules as revisions to the California State Implementation Plan.

THEREFORE, IT IS ORDERED that the Air Resources Board hereby adopts the new

and amended local district rules identified in Enclosure A as revisions to

the California State Implementation Plan.

I certify, pursuant to 40 CFR Section 51.102(f), that the rules identified

in Enclosure A were adopted or amended after notice and public hearings as required by 40 CFR 51.102(a) and (d).

Executed this 28thday of September, 1994 at Sacramento, California.

CALIFORNIA AIR RESOURCES BOARD

Michael H. Scheible

Deputy Executive Officer

End osures