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Rule No(s): 400.4 Date adopted/Amended/Rescinded: October 22, 2013

Rule Title(s): Emissions of Oxides of Nitrogen From Wallboard Kilns

Date Submitted to ARB: November 14, 2013

If an Amended Rule, Date Last Amended (or Adopted): New Rule

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

Rule 400.4 Emissions of Oxides of Nitrogen from Wallboard Kilns applies to any new or existing Kiln(s) with a heat 

input rating of 5 million British Thermal Units (Btu) per hour operating at wallboard production facilities in Imperial 

County. Rule 400.4 limits NOx emissions to 30 parts per million by volume (ppmv) or 0.036 pounds per million Btu 

of heat input when operated on gaseous fuels, 40 ppmv or 0.052 pounds per million Btu of heat input when 

operated on liquid fuels and when operated in combination of gas and liquid fuels the weighted average of 30 

ppmv and 40 ppmv.

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: N/A

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

N/A
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: One

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) C 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): C Work Practice Standards in Section(s): None

Recordkeeping Requirements in Section(s): E Reporting Requirements in Section(s): None
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: Rule 400.4 Emissions of Oxides of Nitrogen from Wallboard Kilns strengthens the Air Districts commitment to 

the application of Reasonable Available Control Technology (RACT) and is the accomplishment of a commitment to RACT 

made during the RACM/RACT submittal to US EPA back in 2009.

5/1/2002