CALIFORNIA AIR RESOURCES BOARD

APCD/AQMD RULE EVALUATION FORM – Page 1

(Electronic Format)

I. GENERAL INFORMATION

District: Antelope Valley Air Quality Management District

Rule No(s): 431.1 Date adopted/Amended/Rescinded: 08/21/2012

Rule Title(s): Sulfur Content of Gaseous Fuels

Date Submitted to ARB: 1/10/13

If an Amended Rule, Date Last Amended (or Adopted): 11/17/1995

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: Karen K. Nowak Phone Number: (760) 245-1661 x6810 E-mail Address: k2nowak@mdaqmd.ca.gov

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

The amendments to Rule 431.1 include a more defined landscape of applicability, adjusting the Landfill Gas (LFG) 

sulfur limits (40 ppmv to 250 ppmv, calculated as H2S) , provide for alternate monitoring methods from the 

installation of Continuous Fuel Gas Monitoring System (CFGMS) or Continuous Emission Monitoring System 

(CEMS), deleted obsolete rule language, deleted the Optional Facility Compliance Plan (OFCP), added definitions 

for regulatory bodies, and standardized rule format. Changes beyond the sulfur limit (not a SIP relaxation) and 

CFGMS and CEMS monitoring provisions are for general rule cleanup and consistency with AVAQMD rule 

development practices. All definitional additions are for clarification purposes as well as for ease of use and to 

conform to AVAQMD standard formatting provisions. 

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: 0

Inventory Year Used to Calculate Changes in Emissions: N/A Area Affected: 

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: 

Emissions Reduction Commitment in the SIP for the Control Measure: 

Revised Baseline Inventory (if any): 

Revised Emission Reduction Estimate (if developed): 

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: 2

Percent in Nonattainment Area: NA%

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

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

necessary): NA

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: NA

V. OTHER REQUIREMENTS

The Rule Contains:

Emission Limits in Section(s): "C" Work Practice Standards in Section(s): 

Recordkeeping Requirements in Section(s): "E" Reporting Requirements in Section(s): "E"
5/1/2002

CALIFORNIA AIR RESOURCES BOARD

APCD/AQMD RULE EVALUATION FORM - Page 3

(Electronic Format)

VI. IMPACT ON AIR QUALITY PLAN

 No Impact Impacts RFP Impacts attainment

Discussion: