CALIFORNIA AIR RESOURCES BOARD



### APCD/AQMD RULE EVALUATION FORM -- Page 1

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I. GENERAL INFORMATION

District: SJVUAPCD

Rule No(s): 4905 Date adopted/Amended/Rescinded: January 22, 2015

Rule Title(s): Natural Gas-Fired, Fan-Type Central Furnaces

Date Submitted to ARB:

If an Amended Rule, Date Last Amended (or Adopted): October 20, 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: Jesse Madsen Phone Number: (55 9) 230-6100 E-mail Address: jesse.madsen@valleyai r.org

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

Amendments to Rule 4905 satisfy control measure com mitments included in the District's 2008 PM2.5 Plan , 2012 PM2.5 Plan, and 2013 Plan for the Revoked 1-Hour Oz one Standard. Amendments to Rule 4905 lowered the NOx emission limit for residential units, and expan ded the rule applicability to include commercial un its and units

installed in manufactured homes. Amendments also a dded clarifying language, removed expired and redun dant language, added labeling requirements, and added an option for manufacturers to pay an emission fee to sell noncompliant units for up to three years. Details of the adopted changes are in the final staff report.

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 imp lemented, will result in quantifiable changes in em issions. Attach reference(s) for emission

factor(s) and other information. Attach calculatio n sheet showing how the emission information provid ed below was determined

.

Net Effect on Emissions: Increase Decrease N/A

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

Inventory Year Used to Calculate Changes in Emissio ns: 2017 Area Affected: SJV Air Basin

Future Year Control Profile Estimate (Provide information on as many years as possible) : Emissions inventory was modified to include additio nal sources (see final staff report for details). The revised baseline inventory is the residential inventory (2.54 tpd in 2017) plus the net commercial inventory (.75 tpd i n 2017), which totals 3.29 tpd in 2017. Future year control profile is the adjusted baseline minus the emissions reduced ( 0.105 tpd annual reductions). 2017: 3.18, 2018: 3.13, 2019: 3.06, 2020: 3.01, 2021: 2.94, 2026: 2.64, 2031: 2.34, 203 6: 2.06.CALIFORNIA AIR RESOURCES BOARD



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Baseline Inventory in the SIP for the Control Measu re: 2.54 tpd NOx

Emissions Reduction Commitment in the SIP for the C ontrol Measure: no emission reduction commitment

Revised Baseline Inventory (if any): 3.29 tpd NOx

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

Note that the district’s input to the Rule Evaluati on Form will not be used as input to the ARB’s emis sion forecasting and planning.

III. SOURCES/ATTAINMENT STATUS

District is: Attainment Nonattainment Split

Approximate Total Number of Small (<100 TPY) Source s 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 Cont inuous? Yes No

If Yes, Those Limits are in Section(s) 5.0 of the Rule.

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

V. OTHER REQUIREMENTS

The Rule Contains:

Emission Limits in Section(s): 5.0 Work Practic e Standards in Section(s): N/A Recordkeeping Requirements in Section(s): 6.0 Rep orting Requirements in Section(s): 6.0CALIFORNIA AIR RESOURCES BOARD



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5/1/2002 3

VI. IMPACT ON AIR QUALITY PLAN

No Impact Impacts RFP Impacts attainment

Discussion: Rule amendments lower the NOx emission limit for residential units from 40 ng/J to 14 ng/ J, and add NOx emission limits of 40 ng/J for units installed in m anufactured homes and 14 ng/J for units installed i n commercial buildings.

The amended NOx emission limits would be effective February 1, 2015 for units installed in manufacture d homes, April 1, 2015 for condensing units (residential and commerci al), October 1, 2015 for non-condensing units (resi dential and commercial), and October 1, 2016 for weatherized un its (residential and commercial). Additionally the NOx emission limit

for units installed in manufactured homes will be l owered to 14 ng/J, effective October 1, 2018. Amen dments allow the sale of non-compliant units during the initial impl ementation period (36 months) in exchange for the p ayment of an emissions fee for each non-compliant unit sold. To tal emission reductions will be 2.10 tpd upon full turnover of existing

units in 2036.