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Rule No(s): 425 Date adopted/Amended/Rescinded: 02/23/2010

Rule Title(s): Aerospace Coating Operations

Date Submitted to ARB: March 15, 2010

If an Amended Rule, Date Last Amended (or Adopted): 05/18/2004

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 425 included record keeping requirements in order to comply with recent updates. The 

intent of the rule is to reduce VOC emissions at industrial sites engaged in coating airplanes space craft and their 

components. The record keeping requirement will assure that emissions of VOC's are controlled however, there 

currently are no sources in Imperail County affected by this rule.

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: N/A Area Affected: Imperial County 

Future Year Control Profile Estimate (Provide information on as many years as possible):
CALIFORNIA AIR RESOURCES BOARD

APCD/AQMD RULE EVALUATION FORM -- Page 2

(Electronic Format)

Baseline Inventory in the SIP for the Control Measure: N/A

Emissions Reduction Commitment in the SIP for the Control Measure: N/A

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: N/A

Percent in Nonattainment Area: N/A%

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

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

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

APCD/AQMD RULE EVALUATION FORM -- Page 3

(Electronic Format)

5/1/2002

3

VI. IMPACT ON AIR QUALITY PLAN

 No Impact Impacts RFP Impacts attainment

Discussion: There are no sources in Imperial County affected by this rule.