CALIFORNIA AIR RESOURCES BOARD

APCD/AQMD RULE EVALUATION FORM -- Page 1

(Electronic Format)

I. GENERAL INFORMATION

District: Imperial County Air Pollution Control District

Rule No(s): 424 Date adopted/Amended/Rescinded: 02/23/2010

Rule Title(s): Architectural Coatings

Date Submitted to ARB: March 15, 2010

If an Amended Rule, Date Last Amended (or Adopted): 01/11/2005

Is the Rule Intended to be Sent to the U.S. EPA as a SIP Revision? Yes No (If No, do not complete remainder of form)

District Contact: Monica N. Soucier Phone Number: (760) 482-4606 E-mail Address: monicasoucier@co.imperial.ca.us

Narrative Summary of New Rule or Rule Changes: New Rule Amended Rule

The amendments to Rule 424 Architectural Coatings follow the Suggested Control Measures recommended and 

adopted by the California Air Resources on October 2007. Essentially, the amended rule establishes VOC 

content limits for more than 40 categories of architectural coatings. The rule applies to any person who supplies, 

sells, offers for sale, or manufactures, blends, or repackages any architectural coating for use within the District. 

Although the rule is effective upon adoption, there is a three year sell through provision.

Pollutant(s) Regulated by the Rule (Check): ROG (NOx) SO2

(CO) PM TAC (name):

II. EFFECT ON EMISSIONS

Complete this section ONLY for rules that, when implemented, will result in quantifiable changes in emissions. Attach reference(s) for emission factor(s) 

and other information. Attach calculation sheet showing how the emission information provided below was determined.

Net Effect on Emissions: Increase Decrease N/A

Emission Reduction Commitment in SIP for this Source Category: N/A

Inventory Year Used to Calculate Changes in Emissions: 2005 Area Affected: Imperial County 

Future Year Control Profile Estimate (Provide information on as many years as possible):

There are approximately 17 retail vendors and 1 wholesale vendor in Imperial County that sell and/or distribute 

Architectural Coatings for use in the District. The emissions reductions for this source category is estimated at 0.12 tons 

per day representing a 28.6% reduction based on amendments according to the Suggested Control Measure developed 

by CARB. The baseline inventory year is 2004.
CALIFORNIA AIR RESOURCES BOARD

APCD/AQMD RULE EVALUATION FORM -- Page 2

(Electronic Format)

Baseline Inventory in the SIP for the Control Measure: 1987

Emissions Reduction Commitment in the SIP for the Control Measure: 0.216 tons/day

Revised Baseline Inventory (if any): N/A

Revised Emission Reduction Estimate (if developed): N/A

Note that the district’s input to the Rule Evaluation Form will not be used as input to the ARB’s emission forecasting and 

planning.

III. SOURCES/ATTAINMENT STATUS

District is: Attainment Nonattainment Split

Approximate Total Number of Small (<100 TPY) Sources Affected by this Amendment: 18

Percent in Nonattainment Area: 100%

Number of Large (> 100 TPY) Sources Controlled: 0 Percent in Nonattainment Area: 100%

Name(s) and Location(s) (city and county) of Large (> 100 TPY) Sources Controlled by Rule (Attach additional sheets as 

necessary): N/A

IV. EMISSION REDUCTION TECHNOLOGY

Does the Rule Include Emission Limits that are Continuous? Yes No

If Yes, Those Limits are in Section(s) D of the Rule.

Other Methods in the Rule for Achieving Emission Reductions are: N/A

V. OTHER REQUIREMENTS

The Rule Contains:

Emission Limits in Section(s): D Work Practice Standards in Section(s): N/A

Recordkeeping Requirements in Section(s): F Reporting Requirements in Section(s): F
CALIFORNIA AIR RESOURCES BOARD

APCD/AQMD RULE EVALUATION FORM -- Page 3

(Electronic Format)

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VI. IMPACT ON AIR QUALITY PLAN

 No Impact Impacts RFP Impacts attainment

Discussion: The reductions for this source category are determined for all of California and reductions are approtioned by 

population. The predicted adjusted 2009 Emissions Inventory with adjustments for the 2000 Suggested Control Measures 

by CARB is estimated at 0.49 tons per day thus helping Imperial County maintain attainment of the 1997 ozone standard.