CALIFORNIA AIR RESOURCES BOARD 

APCD/AQMD RULE EVALUATION FORM – Page 1 

(Electronic Format) 

I. GENERAL INFORMATION 

District: San Joaquin Valley Unified Air Pollution Control District 

Rule No(s): 4566 Date adopted/Amended/Rescinded: Adopted August 18,2011. 

Rule Title(s): Rule 4566 (Organic Material Composting Operations) 

Date Submitted to ARB: September 13, 2011 

If an Amended Rule, Date Last Amended (or Adopted): N/A 

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: Koshoua Thao Phone Number: (559) 230-5822 E-mail Address: koshoua.thao@valleyair.org 

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

Consistent with the 2007 Ozone Plan commitments, Rule 4566 would establish VOC limits, including operational 

and administrative requirements, for composting operations, specifically the process of composting and/or 

stockpiling of organic materials subject to this rule. The requirements are based on best available science and 

information collected through collaborative efforts of the composting community. The rule would require operators 

to reduce VOC emissions through feasible and cost-effective mitigation measures based on the organic material 

receiving throughput category for the composting operation. The rule would provide an extended compliance 

schedule for facilities subject to more stringent composting requirements, such as the finished compost cover or 

engineered control systems, to minimize the rule impacts to those facilities. The emissions reduction percentage 

that the District would achieve from this rule is significantly higher than the 2007 Ozone Plan estimates for this 

source category. 

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: 9 tons of VOC per day (or 16% reduction) 

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

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: 57 tons VOC per day in 2012 

Emissions Reduction Commitment in the SIP for the Control Measure: 9 tons VOC per day by 2012 (or 16% reduction) 

Revised Baseline Inventory (if any): 13.9 tons per day 

Revised Emission Reduction Estimate (if developed): 3.5 tons per day by 2012 (or 25% reduction) and 4.2 tons per day by 

full implementation in 2016 (or 30% reduction) 

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) 5.0 of the Rule. 

Other Methods in the Rule for Achieving Emission Reductions are: Please refer to Section 5.0 for mitigation measures 

V. OTHER REQUIREMENTS 

The Rule Contains: 

Emission Limits in Section(s): 5.0 Work Practice Standards in Section(s): 5.0 

Recordkeeping Requirements in Section(s): 6.0 Reporting Requirements in Section(s): 6.0 
 

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: The adoption of Rule 4566 is part of a control measure in the District's 2007 Ozone Plan. This measure, in 

conjunction with the other control measures in this plan, would help the District attain the federal 8-hour ozone standard. 

Rule 4566 is expected to help achieve significant emissions reduction by reducing 30% of VOC emissions from the 

estimated baseline, which is more than the reductions originally estimated in the 2007 Ozone Plan for this source category.