April 8, 2004

Placer County APCD 507 - 1 Rules and Regulations

RULE 507 FEDERAL OPERATING PERMIT PROGRAM

Adopted 10-19-93

(Amended 08-24-95, 04-17-01, 04-08-04)

CONTENTS

100 GENERAL

101 PURPOSE 

102 APPLICABILITY

110 EXEMPTION, SOURCES NOT SUBJECT TO RULE 507

200 DEFINITIONS

201 ACID RAIN UNIT

202 ADMINISTRATIVE PERMIT AMENDMENT

203 AFFECTED STATE

204 AIR POLLUTION CONTROL OFFICER

205 APPLICABLE FEDERAL REQUIREMENT

206 CALIFORNIA AIR RESOURCES BOARD

207 CLEAN AIR ACT

208 CODE OF FEDERAL REGULATIONS

209 COMMENCE OPERATION

210 DIRECT EMISSIONS

211 DISTRICT

212 EMERGENCY

213 EMISSIONS UNIT

214 FEDERALLY ENFORCEABLE CONDITION

215 FUGITIVE EMISSIONS

216 HAZARDOUS AIR POLLUTANT

217 HEALTH AND SAFETY CODE

218 INITIAL PERMIT

219 MAJOR STATIONARY SOURCE

220 MINOR PERMIT MODIFICATION

221 OPERATING SCENARIOS

222 PERMIT MODIFICATION

223 POTENTIAL TO EMIT

224 PRECONSTRUCTION PERMIT

225 REGULATED AIR POLLUTANT

226 RESPONSIBLE OFFICIAL

227 SIGNIFICANT PERMIT MODIFICATION

228 SOLID WASTE INCINERATOR

229 STATIONARY SOURCE

230 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

231 VOLUNTARY EMISSIONS CAP

300 STANDARDS

301 TITLE V APPLICATION SHIELD

302 APPLICATION REQUIREMENTS

303 APPLICATION CONTENT AND CORRECTNESS

304 WRITTEN REQUESTS FOR DISTRICT ACTION
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400 ADMINISTRATIVE PROCEDURES

401 DISTRICT ADMINISTRATIVE PROCEDURES

402 PERMIT CONTENT REQUIREMENTS

403 SUPPLEMENTAL ANNUAL FEE

500 MONITORING AND RECORDS (NOT INCLUDED)

APPENDIX I: List of Title V Insignificant Activities
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Placer County APCD 507 - 3 Rules and Regulations

100 GENERAL

101 PURPOSE: To establish procedures and requirements for an operating permit system 

consistent with the requirements of Title V of the Federal Clean Air Act (CAA), as 

amended in 1990, and pursuant to 40 CFR Part 70. Title V provides for the 

establishment of operating permit programs for stationary sources which emit regulated 

air pollutants, including attainment and nonattainment pollutants. 

102 APPLICABILITY: Stationary sources subject to Rule 507 include major stationary 

sources, acid rain units subject to Title IV of the Federal Clean Air Act, solid waste 

incinerators subject to Section 111 or 129 of the Federal Clean Air Act, and any other 

stationary sources specifically designated by rule of the US Environmental Protection 

Agency. The sources listed below are subject to the requirements of this rule:

102.1 A major stationary source - Title V, as defined in Section 219;

102.2 A stationary source with an acid rain unit for which application for an Acid Rain 

Permit is required pursuant to Title IV of the Federal Clean Air Act;

102.3 A solid waste incinerator subject to a performance standard promulgated 

pursuant to Section 111 or 129 of the Federal Clean Air Act;

102.4 Any other stationary source in a source category designated by rule of the US 

Environmental Protection Agency; and

102.5 Any stationary source that is subject to a standard or other requirement 

promulgated pursuant to Section 111 or 112 of the Federal Clean Air Act, 

published after July 21, 1992, that is designated as subject to the 

requirements of Title V of the Federal Clean Air Act in the standard or 

requirement.

103 OBLIGATION TO COMPLY: Nothing in this rule relieves a permit applicant from any 

obligation to comply with any other applicable federal, state, or District orders, rules, and 

regulations, including the requirements to obtain permits as required by Rule 501, 

GENERAL PERMIT REQUIREMENTS, and Rule 502, NEW SOURCE REVIEW. The 

requirements in this rule shall augment and take precedence over conflicting 

administrative requirements of other provisions of the District's Rules and Regulations. 

Nothing in this rule limits the authority of the District to revoke or terminate a permit 

pursuant to Sections 40808, and 42307-42309 of the California Health and Safety Code 

(H&SC). 

104 OPERATION IN COMPLIANCE WITH PERMITS: A stationary source shall operate in 

compliance with permits to operate issued pursuant to this rule. 

110 EXEMPTION, SOURCES NOT SUBJECT TO RULE 507: The stationary sources listed 

below are not subject to the requirements of Rule 507:

110.1 Any stationary source that would be required to obtain a permit solely because 

it is subject to 40 CFR Part 60, Subpart AAA (Standards of Performance for 

New Residential Wood Heaters);

110.2 Any stationary source that would be required to obtain a permit solely because 

it is subject to 40 CFR Part 61, Subpart M, Section 145 (National Emission 

Standards for Asbestos, Standard for Demolition and Renovation); 
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110.3 Any other source in a source category deferred by US Environmental 

Protection Agency rulemaking, unless such source is otherwise subject to Title 

V (i.e., it is a major source).

200 DEFINITIONS

For the purposes of this rule the following definitions apply:

201 ACID RAIN UNIT: An "acid rain unit" is any fossil fuel-fired combustion device that is an 

affected unit under 40 CFR Part 72.6 and therefore subject to the requirements of Title IV 

(Acid Deposition Control) of the Federal Clean Air Act.

202 ADMINISTRATIVE PERMIT AMENDMENT: An "administrative permit amendment" is 

an amendment to a permit to operate which:

202.1 Corrects a typographical error;

202.2 Identifies a minor administrative change at the stationary source; for example, 

a change in the name, address, or phone number of any person identified in 

the permit;

202.3 Requires more frequent monitoring or reporting by a responsible official of the 

stationary source; or

202.4 Transfers ownership or operational control of a stationary source, provided 

that, prior to the transfer, the Air Pollution Control Officer receives a written 

agreement which specifies a date for the transfer of permit responsibility, 

coverage, and liability from the current to the prospective permittee.

203 AFFECTED STATE: An "affected state" is any state that: 1) is contiguous with California 

and whose air quality may be affected by a permit action, or 2) is within 50 miles of the 

stationary source for which a permit action is being proposed.

204 AIR POLLUTION CONTROL OFFICER (APCO): "Air Pollution Control Officer" refers to 

the air pollution control officer of the Placer County Air Pollution Control District, or his/her 

designee.

205 APPLICABLE FEDERAL REQUIREMENT: An "applicable federal requirement" is any 

requirement which is enforceable by the US Environmental Protection Agency and 

citizens pursuant to Section 304 of the Federal Clean Air Act and is set forth in, or 

authorized by, the Federal Clean Air Act or a US Environmental Protection Agency 

regulation. An "applicable federal requirement" includes any requirement of a regulation 

in effect at permit issuance and any requirement of a regulation that becomes effective 

during the term of the permit. Applicable federal requirements include:

205.1 Title I requirements of the Federal Clean Air Act, including:

a. New Source Review requirements in the State Implementation Plan 

approved by the US Environmental Protection Agency and the terms and 

conditions of the preconstruction permit issued pursuant to an approved 

New Source Review rule;

b. Prevention of Significant Deterioration (PSD) requirements and the terms 

and conditions of the PSD permit (40 CFR Part 52);

c. New Source Performance Standards (40 CFR Part 60);
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Placer County APCD 507 - 5 Rules and Regulations

d. National Ambient Air Quality Standards, increments, and visibility 

requirements as they apply to portable sources required to obtain a 

permit pursuant to Section 504(e) of the Federal Clean Air Act;

e. National Emissions Standards for Hazardous Air Pollutants (40 CFR Part 

61);

f. Maximum Achievable Control Technology or Generally Available Control 

Technology Standards (40 CFR Part 63);

g. Risk Management Plans and plan preparation and registration 

requirements (Section 112(r) of the Federal Clean Air Act);

h. Solid Waste Incineration requirements (Sections 111 or 129 of the 

Federal Clean Air Act);

I. Consumer and Commercial Product requirements (Section 183 of the 

Federal Clean Air Act);

j. Tank Vessel requirements (Section 183 of the Federal Clean Air Act); 

k. District prohibitory rules that are approved into the State Implementation 

Plan;

l. Standards or regulations promulgated pursuant to a Federal 

Implementation Plan; and 

m. Enhanced Monitoring and Compliance Certification requirements 

(Section 114(a)(3) of the Federal Clean Air Act).

205.2 Title III, Section 328 (Outer Continental Shelf) requirements of the Federal 

Clean Air Act (40 CFR Part 55);

205.3 Title IV (Acid Deposition Control) requirements of the Federal Clean Air Act (40 

CFR Parts 72, 73, 75, 76, 77, 78 and regulations implementing Sections 407 

and 410 of the Federal Clean Air Act);

205.4 Title VI (Stratospheric Ozone Protection) requirements of the Federal Clean Air 

Act (40 CFR Part 82); and

205.5 Monitoring and Analysis requirements (Section 504(b) of the 

Federal Clean Air Act).

206 CALIFORNIA AIR RESOURCES BOARD (ARB): "California Air Resources Board" 

refers to the Air Resources Board of the State of California.

207 CLEAN AIR ACT (CAA): "Clean Air Act" or "Federal Clean Air Act" refers to the federal 

Clean Air Act as amended in 1990 (42 U.S.C. Section 7401 et seq.).

208 CODE OF FEDERAL REGULATIONS: "Code of Federal Regulations" refers to the 

United States Code of Federal Regulations.

209 COMMENCE OPERATION: "Commence operation" is the date of initial operation of an 

emissions unit, including any start-up or shakedown period authorized by a temporary 

permit to operate issued pursuant to Section 42301.1 of the California Health and Safety 

Code.
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210 DIRECT EMISSIONS: "Direct emissions" are emissions that may reasonably pass 

through a stack, chimney, vent, or other functionally-equivalent opening.

211 DISTRICT: "District" refers to the Placer County Air Pollution Control District.

212 EMERGENCY: An "emergency" is any situation arising from a sudden and reasonably 

unforeseeable event beyond the control of a permittee (e.g., an act of God) which causes 

the exceedance of a technology-based emission limitation under a permit and requires 

immediate corrective action to restore compliance. An "emergency" shall not include 

noncompliance as a result of improperly designed equipment, lack of preventive 

maintenance, careless or improper operation, or operator error. 

213 EMISSIONS UNIT: An "emissions unit" is any identifiable article, machine, contrivance, 

or operation which emits, may emit, or results in the emissions of, any regulated air 

pollutant or Hazardous Air Pollutant (HAP) directly or as fugitive emissions. With the 

exception of HAP sources, the fugitive emissions of a source shall not be considered in 

determining whether it is a major stationary source, unless the source belongs to one of 

the categories of stationary sources listed in 40 CFR 70.2, "Definitions", "Major Source" 

(2).

214 FEDERALLY-ENFORCEABLE CONDITION: A "federally-enforceable condition" is any 

condition set forth in the Title V permit to operate which addresses an applicable federal 

requirement or a voluntary emissions cap.

215 FUGITIVE EMISSIONS: Emissions from unintended openings in process equipment, 

emissions occurring from miscellaneous activities relating to the operation of a facility, 

and those emissions which do not pass through a stack, chimney, vent, or other 

functionally equivalent opening.

216 HAZARDOUS AIR POLLUTANT (HAP): Any air pollutant listed pursuant to Section 

112(b) of the Federal Clean Air Act as amended in 1990 (42 U.S.C. Section 7401 et 

seq.).

217 HEALTH AND SAFETY CODE (H&SC): "Health and Safety Code" refers to the 

California Health and Safety Code.

218 INITIAL PERMIT: An "initial permit" is the first operating permit for which a stationary 

source submits an application that addresses the requirements of the federal operating 

permits program as implemented by this rule.

219 MAJOR STATIONARY SOURCE: For the purpose of this rule a major stationary source 

is defined as follows:

219.1 A major source, as defined in Section 112 of the Federal Clean Air Act, with 

the potential to emit 10 tons per year, or more, of any hazardous air pollutant 

listed pursuant to Section 112(b) of the Federal Clean Air Act; or 25 tons per 

year, or more, of any combination of hazardous air pollutants listed pursuant to 

Section 112(b) of the Federal Clean Air Act, or any lesser threshold as U.S. 

EPA may establish by rule. Fugitive hazardous air pollutant emissions shall be 

considered when determining whether a source is a major stationary source.

219.2 A stationary source with a potential to emit exceeding: 25 tons per year of 

nitrogen oxides, 25 tons per year of volatile organic compounds, 100 tons per 

year of sulfur dioxide, 100 tons per year of carbon monoxide, 100 tons per 

year of PM10, or 100 tons per year of a regulated air pollutant. Once a source 

is determined to be a major stationary source, all of its fugitive emissions shall 

be included in calculating the source's emissions. The fugitive emissions of a 
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Placer County APCD 507 - 7 Rules and Regulations

source shall not be considered in determining whether it is a major stationary 

source, unless the source belongs to one of the following categories of 

stationary sources listed in 40 CFR 70.2, "Definitions", "Major Source" (2):

1. Coal cleaning plants (with thermal dryers);

2. Kraft pulp mills;

3. Portland cement plants;

4. Primary zinc smelters;

5. Iron and steel mills;

6. Primary aluminum ore reduction plants;

7. Primary copper smelters;

8. Municipal incinerators capable of charging more than 250 tons of refuse 

per day;

9. Hydrofluoric, sulfuric, or nitric acid plant;

10. Petroleum refineries;

11. Lime plants;

12. Phosphate rock processing plants;

13. Coke oven batteries;

14. Sulfur recovery plants;

15. Carbon black plants (furnace process);

16. Primary lead smelters;

17. Fuel conversion plants;

18. Sintering plants;

19. Secondary metal production plants;

20. Chemical process plants;

21. Fossil-fuel boilers (or combination thereof) totaling more than 250 million 

British thermal units per hour heat input;

22. Petroleum storage and transfer units with a total storage capacity 

exceeding 300,000 barrels;

23. Taconite ore processing plants;

24. Glass fiber processing plants;

25. Charcoal production plants;

26. Fossil-fuel-fired steam electric plants of more than 250 million British 

thermal units per hour heat input; or

27. All other stationary source categories regulated by a standard 

promulgated under Section 111 or 112 of the Federal Clean Air Act, but 

only with respect to those air pollutants that have been regulated for that 

category.

219.3 A source with a potential to emit which exceeds any lesser quantity emission 

threshold promulgated by the US Environmental Protection Agency.

220 MINOR PERMIT MODIFICATION: A "minor permit modification" is any modification to a 

federally-enforceable condition on a permit to operate which: A) is not a significant 

permit modification, and B) is not an administrative permit amendment. However, for 

modifications involving economic incentives, marketable permits, emissions trading, or 

other similar approaches, minor permit modification procedures may be used only to the 

extent provided for in the applicable implementation plan or applicable federal 

requirement.

221 OPERATING SCENARIOS: All modes of facility operation to be permitted, including 

normal operating conditions, start-up, and shutdown. This shall include all planned or 

reasonably foreseeable process, feed, and product changes. Operating scenarios must 

meet all applicable federal requirements.

222 PERMIT MODIFICATION: A "permit modification" is any addition, deletion, or revision to 

a permit to operate condition.
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Rules and Regulations 507 - 8 Placer County APCD

223 POTENTIAL TO EMIT: For the purposes of this rule, "potential to emit" as it applies to 

an emissions unit and a stationary source is defined below.

223.1 Potential to Emit of an Emissions Unit: The "potential to emit" of an emission 

unit is the maximum physical and operational design capacity of an emissions 

unit to emit a regulated air pollutant or HAP. Any limitation on the physical or 

operational design capacity, including emission control devices and restrictions 

on hours of operation, or on the type, or amount of material combusted, stored, 

or processed, may be considered as part of the design only if the limitation is 

set forth in permit conditions or in rules or regulations that are legally and 

practicably enforceable by U.S. EPA and citizens or by the District.

223.2 Potential to Emit of a Stationary Source: The "potential to emit" for a 

stationary source is the sum of the potential to emit from all emissions units at 

the stationary source. If two or more HAPs are emitted at a stationary source, 

the potential to emit for each of those HAPs shall be combined to determine 

applicability. Fugitive emissions shall be considered in determining the 

potential to emit for: 1) sources as specified in 40 CFR Part 70.2, "Definitions", 

"Major Source" (2), and 2) sources of HAP emissions. Notwithstanding the 

above, any HAP emissions from any oil or gas exploration or production well 

(with its associated equipment) and any pipeline compressor or pump station 

shall not be aggregated with emissions of similar units for the purpose of 

determining a major source of HAPs, whether or not such units are located in 

contiguous areas or are under common control.

224 PRECONSTRUCTION PERMIT: A "preconstruction permit" is a permit authorizing 

construction prior to construction and includes:

224.1 A preconstruction permit issued pursuant to a program for the prevention of 

significant deterioration of air quality required by Section 165 of the Federal 

Clean Air Act; or

224.2 A preconstruction permit issued pursuant to a new source review program 

required by Sections 172 and 173 of the Federal Clean Air Act or Rule 502, 

NEW SOURCE REVIEW.

225 REGULATED AIR POLLUTANT: A "regulated air pollutant" is any pollutant: 1) which is 

emitted into or otherwise enters the ambient air, and 2) for which the US Environmental 

Protection Agency has adopted an emission limit, standard, or other requirement. 

Regulated air pollutants include:

225.1 Oxides of nitrogen and volatile organic compounds;

225.2 Any pollutant for which a national ambient air quality standard has been 

promulgated pursuant to Section 109 of the Federal Clean Air Act;

225.3 Any pollutant subject to a New Source Performance Standard promulgated 

pursuant to Section 111 of the Federal Clean Air Act;

225.4 Any ozone-depleting substance specified as a Class I (chlorofluorocarbons) or 

Class II (hydrofluorocarbons) substance pursuant to Title VI of the Federal 

Clean Air Act; and

225.5 Any pollutant subject to a standard or requirement promulgated pursuant to 

Section 112 of the Federal Clean Air Act, including:
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Placer County APCD 507 - 9 Rules and Regulations

a. Any pollutant listed pursuant to Section 112(r) of the Federal Clean Air 

Act (Prevention of Accidental Releases) shall be considered a "regulated 

air pollutant" upon promulgation of the list.

b. Any HAP subject to a standard or other requirement promulgated by the 

US Environmental Protection Agency pursuant to Section 112(d) or 

adopted by the District pursuant to 112(g) and (j) of the Federal Clean Air 

Act shall be considered a "regulated air pollutant" for all sources or 

categories of sources: 1) upon promulgation of the standard or 

requirement, or 2) 18 months after the standard or requirement was 

scheduled to be promulgated pursuant to Section 112(e)(3) of the 

Federal Clean Air Act.

c. Any HAP subject to a District case-by-case emissions limitation 

determination for a new or modified stationary source, prior to the US 

Environmental Protection Agency promulgation or scheduled 

promulgation of an emissions limitation shall be considered a "regulated 

air pollutant" when the determination is made pursuant to Section 

112(g)(2) of the Federal Clean Air Act. In case-by-case emissions 

limitation determinations, the HAP shall be considered a "regulated air 

pollutant" only for the individual stationary source for which the emissions 

limitation determination was made. 

226 RESPONSIBLE OFFICIAL: A "responsible official" is an individual with the authority to 

certify that a stationary source complies with all applicable federal requirements and 

federally-enforceable conditions of permits issued to sources in accordance with this rule. 

"Responsible official" means one of the following:

226.1 For a corporation, a president, secretary, treasurer, or vice-president of the 

corporation in charge of a principal business function, or any other person who 

performs similar policy or decision-making functions for the corporation, or a 

duly authorized representative of such person if the representative is 

responsible for the overall operation of one or more manufacturing, production, 

or operating facilities applying for or subject to a permit and either:

a. The facilities employ more than 250 persons or have gross annual sales 

or expenditures exceeding $25 million (in second quarter 1980 dollars); 

or

b. The delegation of authority to such representative is approved in 

advance by the Air Pollution Control Officer;

226.2 For a partnership or sole proprietorship, a general partner or the proprietor, 

respectively;

226.3 For a municipality, state, federal, or other public agency, either a principal 

executive officer or a ranking elected official; or

226.4 For an acid rain unit subject to Title IV (Acid Deposition Control) of the Federal 

Clean Air Act, the "responsible official" is the designated representative of that 

unit for any purposes under Title IV and this rule.

227 SIGNIFICANT PERMIT MODIFICATION: A "significant permit modification" is any 

modification to a federally-enforceable condition on a permit to operate which:

227.1 Involves any modification under Section 112(g) of Title I of the Federal Clean 

Air Act or under US Environmental Protection Agency regulations promulgated 
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Rules and Regulations 507 - 10 Placer County APCD

pursuant to Title I of the Federal Clean Air Act, including 40 CFR Parts 51, 52, 

60, 61, and 63;

227.2 Significantly changes monitoring conditions;

227.3 Provides for the relaxation of any reporting or recordkeeping conditions;

227.4 Involves a permit term or condition which allows a source to avoid an 

applicable federal requirement, including: 1) a federally-enforceable voluntary 

emissions cap assumed in order to avoid triggering a modification requirement 

of Title I of the Federal Clean Air Act, or 2) an alternative HAP emission limit 

pursuant to Section 112(I)(5) of the Federal Clean Air Act;

227.5 Involves a case-by-case determination of any emission standard or other 

requirement; or 

227.6 Involves a source-specific determination for ambient impacts, visibility 

analysis, or increment analysis on portable sources.

228 SOLID WASTE INCINERATOR: A "solid waste incinerator" is any incinerator which 

burns solid waste material from commercial, industrial, medical, general public sources 

(e.g., residences, hotels, or motels), or other categories of solid waste incinerators 

subject to a performance standard promulgated pursuant to Sections 111 or 129 of the 

Federal Clean Air Act.

The following incinerators are excluded from the definition of "solid waste incinerator" for 

the purpose of this rule:

228.1 Any hazardous waste incinerator required to obtain a permit under the 

authority of Section 3005 of the Solid Waste Disposal Act (42 U.S.C. Section 

6925);

228.2 Any materials recovery facility which primarily recovers metals;

228.3 Any qualifying small power production facility as defined in 16 U.S.C.A. 

Section 796(17)(C);

228.4 Any qualifying cogeneration facility which burns homogenous waste for the 

production of energy as defined in 16 U.S.C.A. Section 796(18)(B); or

228.5 Any air curtain incinerator which burns only wood, yard, or clean lumber waste 

and complies with the opacity limitations to be established by the Administrator 

of the US Environmental Protection Agency.

229 STATIONARY SOURCE: For the purposes of this rule, a "stationary source" is any 

building, structure, facility, or installation (or any such grouping) that:

229.1 Emits, may emit, or results in the emissions of any regulated air pollutant or 

HAP;

229.2 Is located on one or more contiguous or adjacent properties;

229.3 Is under the ownership, operation, or control of the same person (or persons 

under common control) or entity; and

229.4 Belongs to a single major industrial grouping; for example, each building, 

structure, facility, or installation in the grouping has the same two-digit code 
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under the system described in the 1987 Standard Industrial Classification 

Manual.

230 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY (U.S. EPA or US 

Environmental Protection Agency): "United States Environmental Protection Agency" 

refers to the Administrator or appropriate delegee of the "United States Environmental 

Protection Agency".

231 VOLUNTARY EMISSIONS CAP: A "voluntary emissions cap" is an optional, federallyenforceable emissions limit on one or more emissions unit(s) which a source assumes in 

order to avoid an applicable federal requirement. The source remains subject to all other 

applicable federal requirements.

300 STANDARDS

301 TITLE V APPLICATION SHIELD: An existing stationary source shall not be subject to 

enforcement action by the Air Pollution Control Officer or US Environmental Protection 

Agency for operation without a Title V permit to operate if the stationary source has 

complied with all of the following requirements:

301.1 The responsible official has submitted a timely and complete Title V permit to 

operate application for an initial permit or for the five year renewal of a permit 

pursuant to Section 302; and

301.2 The Air Pollution Control Officer has not taken final action on the application; 

and

301.3 The stationary source is operated in accordance with the requirements of any 

valid permit to operate issued pursuant to Section 42301 of the California

Health and Safety Code and any Title V permit to operate issued pursuant to 

this rule, notwithstanding expiration of this permit; and

301.4 The responsible official has honored all requests for further information by the 

Air Pollution Control Officer pursuant to Subsection 303.2(b); and

301.5 The Title V permit to operate has not been canceled, suspended or terminated.

The application shield does not apply to stationary sources applying for permit 

modifications. For permit modifications, a stationary source shall operate in accordance 

with the applicable federal requirements, the permit to operate issued pursuant to this 

rule and any temporary permit to operate issued pursuant to Section 42301.1 of the 

California Health and Safety Code.

302 APPLICATION REQUIREMENTS:

302.1 General: Stationary sources subject to this rule shall obtain Title V permits to 

operate pursuant to this rule. Each permit to operate issued pursuant to this 

rule shall contain conditions and requirements adequate to ensure compliance 

with:

a. All applicable provisions of Division 26 of the California Health and 

Safety Code, commencing with Section 39000;

b. All applicable orders, rules, and regulations of the District and the 

California Air Resources Board (ARB);
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c. All applicable provisions of the applicable implementation plan required 

by the Federal Clean Air Act;

d. Each applicable emission standard or limitation, rule, regulation, or 

requirement adopted or promulgated to implement the Federal Clean Air 

Act; and

e. The requirements of all preconstruction permits issued pursuant to Parts 

C and D of the Federal Clean Air Act.

The operation of an emissions unit or stationary source to which this rule is 

applicable without a permit or in violation of any applicable permit condition or 

requirement shall be a violation of this rule.

302.2 Application Submittal for Existing Stationary Sources: For a stationary source 

that is subject to the requirements of this rule on June 2, 1995, a responsible 

official of the stationary source shall submit a complete application for a Title V 

permit to operate to the Air Pollution Control Officer no later than March 2, 

1996.

302.3 Application Submittal for New or Modified Stationary Sources: For a stationary 

source that becomes subject to the requirements of this rule after June 2, 

1995, and after obtaining any required preconstruction permits, a responsible 

official of the stationary source shall submit a complete application for a Title V 

permit to operate within 12 months of the source commencing operation or of 

otherwise becoming subject to this rule.

302.4 Application Submittal for Permit Renewal: For renewal of a permit, a 

responsible official of the stationary source shall submit a complete application 

for a Title V permit to operate to the Air Pollution Control Officer no earlier than 

18 months and no later than 6 months before the expiration date of the current 

Title V permit to operate. Title V permits to operate for all emissions units at a 

stationary source shall undergo simultaneous renewal.

302.5 Sources with Existing Acid Rain Unit(s): For a source with an acid rain unit, a 

responsible official shall submit a standard District application and acid rain 

permit applications to the District. The applications shall be submitted within 

the following timeframe:

a. If the source is subject to this rule because it is a major stationary source 

as defined in Section 219, applications shall be submitted within the 

timeframe specified in Subsections 302.2 or 302.3, above.

b. If the source is subject to this rule only because the source has an acid 

rain unit for which an application for an Acid Rain Permit is required 

pursuant to Title IV of the Federal Clean Air Act, applications shall be 

submitted by January 1, 1996, or, if applicable, a later date established 

by 40 CFR Part 72.

302.6 Significant Permit Modification:

a. After obtaining any required pre-construction permits, a responsible 

official shall submit a standard District application for each emissions unit 

affected by a proposed permit revision that qualifies as a significant 

permit modification. Upon request by the Air Pollution Control Officer, 

the responsible official shall submit copies of the latest pre-construction 
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Placer County APCD 507 - 13 Rules and Regulations

permit for each affected emissions unit. The emissions unit(s) affected 

by the proposed permit modification shall not commence operation until 

the Air Pollution Control Officer takes final action to issue the revised 

permit or until the requirements of subsection b., below, are met.

b. An emissions unit may commence operation of change(s) in a proposed 

significant permit modification prior to final action by the Air Pollution 

Control Officer to issue the permit modification, provided:

1. The stationary source has received and complies with a preconstruction permit under Section 112(g) of the CAA, or under 

pre-construction review programs either approved into the State 

Implementation Plan, or authorized by the provisions of 40 CFR 

Part 52.21, pursuant to Parts C and D of Title I of the CAA;

2. The stationary source has received and complies with a 

temporary permit to operate issued pursuant to Rule 501, 

GENERAL PERMIT REQUIREMENTS;

3. The stationary source submits an application for a significant 

permit modification within 12 months of commencing operation of 

the change(s);

4. The change(s) is not prohibited by any permit conditions 

including those issued pursuant to this rule; and

5. The modified emissions unit(s) complies with all applicable 

federal requirements and rules and regulations of the District.

302.7 Minor Permit Modification:

a. After obtaining any required pre-construction permits, a responsible 

official shall submit a standard District application for each emissions unit 

affected by the proposed permit revision that qualifies as a minor permit 

modification. The emissions unit(s) affected by the proposed permit 

modification shall not commence operation until the Air Pollution Control 

Officer takes final action to approve the permit revision or until the 

requirements in subsection b., below, are met. In the application, the 

responsible official shall include the following:

1. A description of the proposed permit revision, any change in 

emissions, and additional applicable federal requirements that 

will apply;

2. Proposed permit terms and conditions; and

3. A certification by a responsible official that the permit revision 

meets criteria for use of minor permit modification procedures 

and a request that such procedures be used.

b. After filing its minor permit modification application as required by 

subsection a., above, and prior to final action by the District to issue or 

deny the requested minor permit modification or to determine it is a 

significant permit modification, the stationary source may immediately 

make the change(s) in a proposed minor permit modification, provided:

1. The modified emissions unit(s) complies with the conditions of 
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Rules and Regulations 507 - 14 Placer County APCD

any applicable pre-construction or temporary permit to operate 

issued pursuant to District rules and regulation;

2. The modified emissions unit(s) complies with all proposed permit 

terms and conditions identified in its minor permit modification 

application; and

3. The change(s) does not violate any applicable federal 

requirement or any rule or regulation of the District.

c. Allowing a stationary source to make a change prior to permit issuance 

does not constitute final action and does not preclude the District from 

denying the change or requiring the change to be processed as a 

significant permit modification, nor does it preclude the U.S. EPA from 

objecting to the permit modification.

d. After the stationary source makes the change and before the minor 

permit modification is issued, the stationary source need not comply with 

the existing permit terms and conditions it seeks to modify. If the 

modified emissions unit(s) fails to comply with the terms and conditions 

of the proposed minor permit modification, the existing permit terms and 

conditions the stationary source seeks to modify may be enforced 

against it.

302.8 Acid Rain Unit Permit Modification: A permit modification of the acid rain portion of 

the operating permit shall be governed by regulations promulgated pursuant to Title 

IV of the Federal Clean Air Act.

303 APPLICATION CONTENT AND CORRECTNESS:

303.1 Standard District Application: The standard District application submitted shall 

include the following information:

a. Information identifying the source;

b. Description of processes and products (by Standard Industrial Classification 

Code) including any associated with proposed alternative operating 

scenarios;

c. Identification of fees specified in REGULATION 6, Rule 601, PERMIT FEES;

d. A listing of all existing emissions units at the stationary source and 

identification and description of all points of emissions from the emissions 

units in sufficient detail to establish the applicable federal requirements and 

the basis for applicable fees to be assessed;

e. Citation and description of all applicable federal requirements, information 

and calculations used to determine the applicability of such requirements and 

other information that may be necessary to implement and enforce such 

requirements;

f. Calculation of all emissions, including fugitive emissions, in tons per year and 

in such terms as are necessary to establish compliance with the all 

applicable District, State, or federal requirements for the following:

1. All regulated air pollutants emitted from the source,
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Placer County APCD 507 - 15 Rules and Regulations

2. Any HAP that the source has the potential to emit in quantities equal 

to or in excess of 10 tons per year, and

3. If the source has the potential to emit two or more HAPs in quantities 

equal to or in excess of 25 tons per year, all HAPs emitted by the 

source;

g. As these affect emissions from the source, the identification of fuels, fuel use, 

raw materials, production rates, operating schedules, limitations on source 

operation or workplace practices;

h. An identification and description of air pollution control equipment and 

compliance monitoring devices or activities;

I. Other information required by an applicable federal requirement;

j. The information needed to define permit terms or conditions implementing a 

source's options for operational flexibility, including alternative operating 

scenarios, pursuant to Subsection 401.9;

k. A compliance plan and compliance schedule with the following:

1. A description of the compliance status of each emissions unit within 

the stationary source with respect to applicable federal requirements,

2. A statement that the source will continue to comply with such 

applicable federal requirements that the source is in compliance,

3. A statement that the source will comply, on a timely basis, with 

future-effective requirements which have been adopted, and

4. A description of how the source will achieve compliance with 

requirements for which the source is not in compliance;

l. For a source not in compliance with any applicable federal requirement at the 

time of permit issuance, renewal, and modification (if the non-compliance is 

with units being modified), a schedule of compliance which resembles and is 

at least as stringent as that contained in any judicial consent decree, 

administrative order, or schedule approved by the District hearing board if 

required by state law and which identifies remedial measures with specific 

increments of progress, a final compliance date, testing and monitoring 

methods, recordkeeping requirements, and a schedule for submission of 

certified progress reports to the U.S. EPA and the Air Pollution Control 

Officer at least every 6 months;

m. A certification by a responsible official of all reports and other documents 

submitted for permit application, compliance progress reports at least every 6 

months; statements on compliance status with any applicable enhanced 

monitoring, and compliance plans at least annually which shall state that, 

based on information and belief formed after reasonable inquiry, the 

statements and information in the document are true, accurate, and 

complete;

n. For a source with an acid rain unit, an application shall include the elements 

required by 40 CFR Part 72;
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Rules and Regulations 507 - 16 Placer County APCD

o. For a source of HAPs required to prepare a risk management plan pursuant 

to Section 112(r) of the Federal Clean Air Act, the application shall include 

verification that a risk management plan has been submitted to the 

authorized implementing agency or a compliance schedule for the submittal 

of such a plan shall be included in the permit to operate; and

p. For proposed portable sources, an application shall identify all locations of 

potential operation and how the source will comply with all applicable District, 

State, and federal requirements at each location.

q. Activities identified as insignificant in Appendix I of this rule based upon size 

and production rate shall be listed in the permit application. An application 

may not omit information needed to determine the applicability of, or to 

impose, any applicable requirement, or to evaluate the fee amount required 

in Section VII of this rule. 

303.2 Correcting and Updating of a Title V Application: A responsible official of a source 

shall submit an accurate and complete application in accordance with the 

requirements of the District.

a. Upon the written request of the Air Pollution Control Officer, a responsible 

official shall supplement any complete application with additional information 

relating to the Title V application within 30 days of the date the request is 

made.

b. A responsible official shall promptly provide additional information in writing 

to the Air Pollution Control Officer upon discovery of submittal of any 

inaccurate information as part of the application or as a supplement thereto, 

or of any additional relevant facts previously omitted which are needed for 

accurate analysis of the application.

c. Intentional or negligent submittal of inaccurate information shall be reason for 

denial of an application.

d. A responsible official shall submit to the Air Pollution Control Officer timely 

updates to the Title V permit to operate application as new requirements 

become applicable to the source.

304 WRITTEN REQUESTS FOR DISTRICT ACTION: A responsible official shall submit a written 

request to the Air Pollution Control Officer for the following permit actions:

304.1 Administrative Permit Amendment: For an administrative permit amendment, a 

responsible official may implement the change addressed in the written request 

immediately upon submittal of the request.

304.2 Permit Modification for a Condition that is not Federally Enforceable: For a permit 

modification for a condition that is not federally enforceable, a responsible official 

shall submit a written request in accordance with the requirements of Rule 501, 

GENERAL PERMIT REQUIREMENTS.

304.3 Permits to Operate for New Emissions Units: For permits to operate for a new 

emissions unit at a stationary source, a responsible official shall submit a written 

request in accordance with the requirements of Rule 501, GENERAL PERMIT 

REQUIREMENTS, except under the following circumstances:
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Placer County APCD 507 - 17 Rules and Regulations

a. The construction or operation of the emissions unit is a modification under 

US Environmental Protection Agency regulations promulgated pursuant to 

Title I of the Federal Clean Air Act, including 40 CFR Parts 51, 52, 60, 61, 63;

b. The construction or operation of the emissions unit is addressed or prohibited 

by permits for other emissions units at the stationary source;

c. The emissions unit is an acid rain unit subject to Title IV of the Federal Clean 

Air Act; or

d. The emissions unit is a major stationary source for the purpose of this rule.

In the circumstances specified in Subsections (a), (b), (c), or (d), above, a 

responsible official shall apply for a permit to operate for the new emissions unit 

pursuant to the requirements of this rule.

304.4 Response to Permit Reopening For Cause: Upon notification by the Air Pollution 

Control Officer of a reopening of a permit for cause for an applicable federal 

requirement pursuant to Section 401.8, below, a responsible official shall respond to 

any written request for information by the Air Pollution Control Officer within 30 days 

of the post-marked date of the request, unless an extension for a longer period of 

time is agreed to in writing by the Air Pollution Control Officer.

400ADMINISTRATIVE PROCEDURES

401 DISTRICT ADMINISTRATIVE PROCEDURES:

401.1 Completeness Review of Applications: The Air Pollution Control Officer shall 

determine if an application is complete and shall notify the responsible official of the 

determination within the following timeframes:

a. For an initial permit, permit renewal, or a significant permit modification, 

within 60 days of receiving the application;

b. For a minor permit modification, within 30 days of receiving the application;

The application shall be deemed complete unless the Air Pollution Control Officer 

requests additional information or otherwise notifies the responsible official that the 

application is incomplete within the timeframes specified above.

401.2 Notification of Completeness Determination: The Air Pollution Control Officer shall 

provide written notification of the completeness determination to the US 

Environmental Protection Agency, the ARB and any affected state and shall submit a 

copy of the complete application to the US Environmental Protection Agency within 

five working days of the determination. The Air Pollution Control Officer need not 

provide notification for applications from sources that are not major sources when the 

US Environmental Protection Agency waives such requirement for a source category 

by regulation or at the time of approval of the District operating permits program.

401.3 Application Processing Timeframes: The Air Pollution Control Officer shall act on a 

complete application in accordance with the procedures in Subsections 401.4, 401.5 

and 401.6, below (except as application procedures for acid rain units are provided 

for under regulations promulgated pursuant to Title IV of the Federal Clean Air Act), 

and take final action within the following timeframes:

a. For an initial permit for a source that becomes subject to this rule after June 

2, 1995, no later than 18 months after the complete application is received;
April 8, 2004

Rules and Regulations 507 - 18 Placer County APCD

b. For a permit renewal, no later than 18 months after the complete application 

is received;

c. For a significant permit modification, no later than 18 months after the 

complete application is received;

d. For a minor permit modification, within 90 days after the application is 

received or 60 days after written notice to the US Environmental Protection 

Agency on the proposed decision, whichever is later; or

e. For any permit application with early reductions pursuant to Section 112(I)(5) 

of the Federal Clean Air Act, within 9 months from the date a complete 

application is received.

401.4 Notification and Opportunity for Review of Proposed Decision: Within the applicable 

timeframe specified in Subsection 401.3 the Air Pollution Control Officer shall provide 

notice of and opportunity to review the proposed decision to issue a permit to operate 

in accordance with requirements in this Subsection. 

a. For Minor Permit Modifications: The Air Pollution Control Officer shall 

provide written notice of the proposed decision to the US Environmental 

Protection Agency, the ARB, and any affected state. Additionally, the District 

shall provide to the US Environmental Protection Agency (and, upon request, 

to the ARB or any affected state) copies of the proposed permit, the District 

analysis, and all necessary supporting information. The District analysis 

shall include a statement that sets forth the legal and factual basis for the 

proposed permit conditions, including references to the applicable statutory 

and regulatory provisions.

b. For Initial Permits, Renewal of Permits, Significant Permit Modifications, and 

Reopenings For Cause: The Air Pollution Control Officer shall provide the 

following:

1. Written notice, the proposed permit and, upon request, copies of the 

District analysis to interested persons or agencies. The District 

analysis shall include a statement that sets forth the legal and factual 

basis for the proposed permit conditions, including references to the 

applicable statutory and regulatory provisions. Interested persons or 

agencies shall include persons who have requested in writing to be 

notified of proposed Title V permit decisions, any affected state and 

the ARB.

2. On or after providing written notice pursuant to Subsection (1), 

above, public notice that shall be published in at least one 

newspaper of general circulation in the District and, if necessary, by 

other means to assure adequate notice to the affected public. The 

notice shall provide the following information:

A. The identification of the source, the name and address of 

permit holder, the activity(ies) and emissions change 

involved in the permit action;

B. The name and address of the District, the name and 

telephone number of District staff to contact for additional

information;
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Placer County APCD 507 - 19 Rules and Regulations

C. The availability, upon request, of a statement that sets forth 

the legal and factual basis for the proposed permit 

conditions;

D. The location where the public may inspect the complete 

application, the District analysis, and the proposed permit;

E. A statement that the public may submit written comments 

regarding the proposed decision within at least 30 days from 

the date of publication and a brief description of commenting 

procedures, and

F. A statement that members of the public may request the Air 

Pollution Control Officer to preside over a public hearing for 

the purpose of receiving oral public comment, if a hearing 

has not already been scheduled. The Air Pollution Control 

Officer shall provide notice of any public hearing scheduled

to address the proposed decision, in at least one newspaper 

of general circulation and to parties that have requested 

such notice, at least 30 days prior to such hearing.

3. A copy of the complete application, the District analysis and the 

proposed permit at District offices for public review and comment 

during normal business hours;

4. A written response, including reasons for not accepting comments 

and recommendations for a proposed permit, to persons or agencies 

that submitted written comments which are postmarked by the close 

of the public notice and comment period. All written comments and 

responses to such comments shall be sent to all commenters and 

kept on file at the District office and made available upon request.

5. After completion of the public notice and comment period pursuant to 

Subsection (1), above, written notice shall be made to the US 

Environmental Protection Agency of the proposed decision along 

with copies of the proposed permit, the District analysis, the public 

notice submitted for publication, the District's response to written 

comments, and all necessary supporting information.

401.5 Changes to the Proposed Decision Changes to the proposed decision shall be 

governed by the following procedure:

a. The Air Pollution Control Officer may modify or change the proposed 

decision, the proposed permit, or the District analysis on the basis of 

information set forth in the comments received during the public comment 

period provided pursuant to Subsection 401.4(b)(2)(e) or due to further 

analysis of the Air Pollution Control Officer. Pursuant to Subsection 

401.4(b)(5) the Air Pollution Control Officer shall forward any such modified 

proposed decision, the proposed permit, the District analysis, and all 

necessary supporting information to the US Environmental Protection 

Agency.

b. If the US Environmental Protection Agency objects in writing to the proposed 

decision within 45 days of being notified of the decision and receiving a copy 

of the proposed permit and all necessary supporting information pursuant to 

Subsection 401.4(b)(5) the Air Pollution Control Officer shall not issue the 

permit. Also, if the public petitions the US Environmental Protection Agency 

within 60 days after the end of the US Environmental Protection Agency’s 45-
April 8, 2004

Rules and Regulations 507 - 20 Placer County APCD

day review period and the permit has not yet been issued, the Air Pollution 

Control Officer shall not issue the permit until US Environmental Protection 

Agency objections in response to the petition are resolved. The Air Pollution 

Control Officer shall either deny the application or revise and resubmit a 

permit which addresses the deficiencies identified in the US Environmental 

Protection Agency objection within the following timeframes:

1. For initial permits, permit renewals, and significant permit 

modifications, within 90 days of receiving the US Environmental 

Protection Agency objection; or

2. For minor permit modifications, within 90 days of receipt of the 

application or 60 days of the notice to US Environmental Protection 

Agency, whichever is later.

401.6 Final Decision: If the US Environmental Protection Agency does not object in writing 

within 45 days of the notice provided pursuant to Subsection 401.4(b)(5) or the Air 

Pollution Control Officer submits a revised permit pursuant to Subsection 401.5(a) 

the Air Pollution Control Officer shall, expeditiously, deny the application or issue the 

final permit to operate. In any case, the Air Pollution Control Officer shall take final 

action on an application within the applicable timeframe specified in Subsection 

401.3. Failure of the Air Pollution Control Officer to act on a permit application or 

permit renewal application in accordance to the timeframes provided in Subsection 

401.3, shall be considered final action for purposes of obtaining judicial review to 

require that action on the application be taken expeditiously.

Written notification of the final decision shall be sent to the responsible official of the 

source, the US Environmental Protection Agency, the ARB and any person and 

affected state that submitted comments during the public comment period. The Air 

Pollution Control Officer shall submit a copy of a permit to operate as issued to the 

US Environmental Protection Agency and provide a copy to any person or agency 

requesting a copy. If the application is denied, the Air Pollution Control Officer shall 

provide reasons for the denial in writing to the responsible official along with the 

District analysis and cite the specific statute, rule, or regulation upon which the denial 

is based.

401.7 District Action on Written Requests: The Air Pollution Control Officer shall act on a 

written request of a responsible official for permit action using the applicable 

procedure specified in this Subsection.

a. Administrative Permit Amendment: The Air Pollution Control Officer shall 

take final action no later than 60 days after receiving the written request for 

an administrative permit amendment.

1. After designating the permit revisions as an administrative permit 

amendment, the Air Pollution Control Officer may revise the permit 

without providing notice to the public or any affected state.

2. The Air Pollution Control Officer shall provide a copy of the revised 

permit to the responsible official and the US Environmental 

Protection Agency.

3. While the Air Pollution Control Officer need not make a 

completeness determination on a written request, the Air Pollution 

Control Officer shall notify the responsible official if the Air Pollution 

Control Officer determines that the permit can not be revised as an 

administrative permit amendment.
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Placer County APCD 507 - 21 Rules and Regulations

b. Permit Modification for a Condition that is not Federally Enforceable: The Air 

Pollution Control Officer shall take action on a written request for a permit 

modification for a condition that is not federally enforceable in accordance 

with the requirements of Rule 501, GENERAL PERMIT REQUIREMENTS, 

under the following circumstances:

1. Any change at the stationary source allowed by the permit 

modification shall meet all applicable federal requirements and shall 

not violate any existing permit term or condition; and

2. The Air Pollution Control Officer provides to the US Environmental 

Protection Agency a contemporaneous written notice describing the 

change, including the date, any change in emissions or air pollutants 

emitted, and any applicable federal requirement that would apply as 

a result of the change.

c. Permits to Operate for New Emissions Units: The Air Pollution Control 

Officer shall take action on a written request for a permit to operate for a new 

emissions unit in accordance with the requirements for of Rule 501, 

GENERAL PERMIT REQUIREMENTS, under the circumstances specified in 

Subsection 401.7(b)(1) and 401.7(b)(2), above. However, if Subsections 

304.3(a), 304.3(b), 304.3(c), or 304.3(d) apply, the Air Pollution Control 

Officer shall require the submittal of a standard District application and take 

action on that application pursuant to the requirements of this rule.

401.8 Permit Reopening for Cause: The Air Pollution Control Officer shall reopen and 

revise a permit to operate during the annual review period required by Section 

42301(c) of the California Health and Safety Code, or petition the District hearing 

board to do so pursuant to Section 42307 of the California Health and Safety Code, 

whichever is applicable, prior to its expiration date upon discovery of cause for 

reopening or upon notification of cause for reopening by the US Environmental 

Protection Agency, or within 18 months of promulgation of a new applicable federal 

requirement. The Air Pollution Control Officer shall act only on those parts of the 

permit for which cause to reopen exists.

a. Circumstances that are cause for reopening and revision of a permit include, 

but are not limited to, the following:

1. The need to correct a material mistake or inaccurate statement;

2. The need to revise or revoke a permit to operate to assure 

compliance with applicable federal requirements;

3. The need to incorporate any new, revised, or additional applicable 

federal requirements, if the remaining authorized life of the permit is 

3 years or greater, no later than 18 months after the promulgation of 

such requirement (where less than 3 years remain in the authorized 

life of the permit, the Air Pollution Control Officer shall incorporate 

these requirements into the permit to operate upon renewal); or

4. The need to reopen a permit issued to acid rain unit subject to Phase 

II of Title IV of the Federal Clean Air Act to include:

A. Oxides of nitrogen requirements prior to January 1, 1999, 

and
April 8, 2004

Rules and Regulations 507 - 22 Placer County APCD

B. Additional requirements promulgated pursuant to Title IV as 

they become applicable to any acid rain unit governed by the 

permit.

b. In processing a permit reopening, the Air Pollution Control Officer shall use 

the same procedures as for an initial permit and additionally:

1. Provide written notice to a responsible official and the US 

Environmental Protection Agency at least 30 days, or a shorter 

period in the case of an emergency, prior to reopening a permit; and

2. Complete action to revise the permit as specified in the notice of 

reopening within 60 days after the written notice to the US 

Environmental Protection Agency pursuant to Subsection 

401.4(b)(5), if the US Environmental Protection Agency does not 

object, or after the Air Pollution Control Officer has responded to US 

Environmental Protection Agency objection pursuant to Subsection 

401.5(b).

401.9 Options for Operational Flexibility: The Air Pollution Control Officer shall allow 

specified changes in operations at a source without requiring a permit revision for 

conditions that address an applicable federal requirement. The Air Pollution Control 

Officer shall not allow changes which constitute a modification under Title I of the 

Federal Clean Air Act or Rule 502, NEW SOURCE REVIEW, or that result in an 

exceedance of the emissions allowable under the permit, whether expressed therein 

as a rate of emissions or in terms of total emissions without revision to the permit. 

The source may gain operational flexibility through use of the following options:

a. Alternative Operating Scenarios: The Air Pollution Control Officer shall allow 

the use of alternative operating scenarios provided that:

1. Terms and conditions applicable to each operating scenario are 

identified by the responsible official in the permit application,

2. The terms and conditions are approved by the Air Pollution Control 

Officer,

3. The terms and conditions are incorporated into the permit; and

4. The terms and conditions are in compliance with all applicable 

District, State, and federal requirements.

A permit condition shall require a contemporaneous log to record each 

change made from one operating scenario to another.

b. Voluntary Emissions Caps: The Air Pollution Control Officer shall issue a 

permit that contains terms and conditions that allow for trading of emissions 

increases and decreases within the stationary source solely for the purpose 

of complying with a voluntary emissions cap established in the permit 

independent of otherwise applicable federal requirements provided that:

1. The requirements of Subsections 401.9(a)(1), 401.9(a)(3), and 

401.9(a)(4) are met;

2. The terms and conditions are approved by the Air Pollution Control 

Officer as quantifiable and enforceable; and
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Placer County APCD 507 - 23 Rules and Regulations

3. The terms and conditions are consistent with the applicable 

preconstruction permit.

A permit condition shall require that a responsible official provide written 

notice to the US Environmental Protection Agency and Air Pollution Control 

Officer 30 days in advance of a change by clearly requesting operational 

flexibility under this Subsection. The written notice shall describe the 

change, identify the emissions unit which will be affected, the date on which 

the change will occur and the duration of the change, any change in 

emissions of any air pollutant, whether regulated or not, and any new 

emissions of any air pollutant not emitted before the change, whether 

regulated or not.

c. Contravening an Express Permit Condition: The Air Pollution Control Officer 

shall allow for changes in operation that contravene an express condition 

addressing an applicable federal requirement in a permit to operate provided 

that:

1. The change will not violate any applicable federal requirement;

2. The change will not contravene federally-enforceable conditions that 

are monitoring (including test methods), recordkeeping, reporting, or 

compliance certification requirements;

3. The change is not a modification under Title I of the Federal Clean 

Air Act or any provision of Rule 502, NEW SOURCE REVIEW;

4. The change does not result in exceeding the emissions allowable 

under the permit, whether expressed therein as a rate of emissions 

or in terms of total emissions;

5. Written notice is given to the US Environmental Protection Agency 

and Air Pollution Control Officer 30 days in advance of a change, 

and the notice clearly indicates which term or condition will be 

contravened, requests operational flexibility under this Subsection, 

describes the change, identifies the emissions units which will be 

affected, the date on which the change will occur, the duration of the 

change, any change in emissions of any air pollutant, whether 

regulated or not, and any new emissions of any air pollutant not 

emitted before the change, whether regulated or not; and

6. The Air Pollution Control Officer has not provided a written denial 

pursuant to Subsections (1), (2), (3), (4) and (5), above, to the 

responsible official within 30 days of receipt of the request for an 

operational change. The written denial shall identify which of the 

requirements of Subsections (1), (2), (3), (4) and (5), above, have 

not been satisfied.

402 PERMIT CONTENT REQUIREMENTS:

A permit-to-operate shall contain permit conditions that will assure compliance with all 

applicable federal requirements.

402.1 Incorporation of Applicable Federal Requirements: A permit to operate shall 

incorporate all applicable federal requirements as permit conditions. The following 

procedure shall be used to incorporate an applicable federal requirement as a permit 

condition:
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Rules and Regulations 507 - 24 Placer County APCD

a. A permit condition that addresses an applicable federal requirement shall be 

specifically identified in the permit, or otherwise distinguished from any 

requirement that is not federally enforceable;

b. Where an applicable federal requirement and a similar requirement that is 

not federally enforceable apply to the same emissions unit, both shall be 

incorporated as permit conditions, provided that they are not mutually 

exclusive; and 

c. Where an applicable federal requirement and a similar requirement that is 

not federally enforceable apply to the same emissions unit and are mutually 

exclusive (e.g., require different air pollution control technology), the 

requirement specified in the preconstruction permit (or, in the case of 

sources without preconstruction permits, the more stringent requirement) 

shall be incorporated as a permit condition and the other requirement shall 

be referenced.

402.2 General Requirements: All permits to operate shall contain the conditions or terms 

consistent with 40 CFR Part 70.6 Permit Content, including:

a. Emission and Operational Limitations: The permit shall contain conditions 

that require compliance with all applicable federal requirements, including 

any operational limitations or requirements.

b. Preconstruction Permit Requirements: The permit shall include all of the 

preconstruction permit conditions for each emissions unit.

c. Origin and Authority for Permit Conditions: The origin and authority for each 

permit term or condition shall be referenced in the permit.

d. Equipment Identification: The permit shall identify the equipment to which a 

permit condition applies.

e. Monitoring, Testing, and Analysis: The permit shall contain conditions that 

require monitoring, analytical methods, compliance certification, test 

methods, equipment management, and statistical procedures consistent with 

any applicable federal requirement, including those pursuant to Sections 

114(a)(3) and 504(b) of the Federal Clean Air Act, and 40 CFR Part 64. 

Periodic monitoring shall be required as a condition to ensure that the 

monitoring is sufficient to yield reliable data which are representative of the 

source's compliance with permit conditions over the relevant time period.

f. Recordkeeping: The permit shall include recordkeeping conditions that 

require:

1. Record maintenance of all monitoring and support information 

associated with any applicable federal requirement, including:

A. Date, place, and time of sampling;

B. Operating conditions at the time of sampling; and

C. Date, place, and method of analysis; and

D. Results of the analysis;
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Placer County APCD 507 - 25 Rules and Regulations

2. Retention of records of all required monitoring data and support 

information for a period of at least five years from the date of sample 

collection, measurement, report, or application; and

3. Any other recordkeeping deemed necessary by the Air Pollution 

Control Officer to ensure compliance with all applicable federal 

requirements.

g. Reporting: The permit shall include reporting conditions that require the 

following:

1. Any deviation from permit requirements, including that attributable to 

upset conditions (as defined in the permit), shall be promptly 

reported to the Air Pollution Control Officer who will determine what 

constitutes "prompt" reporting in terms of the requirement, the 

degree, and type of deviation likely to occur;

2. A monitoring report shall be submitted at least every six months and 

shall identify any deviation from permit requirements, including that 

previously reported to the Air Pollution Control Officer in accordance 

with Subsection 402.2(g)(1);

3. All reports of a deviation from permit requirements shall include the 

probable cause of the deviation and any preventative or corrective 

action taken;

4. A progress report shall be made on a compliance schedule at least 

semi-annually and shall include: A) the date when compliance will 

be achieved, B) an explanation of why compliance was not, or will 

not be, achieved by the scheduled date, and C) a log of any 

preventative or corrective action taken; and

5. Each monitoring report shall be accompanied by a written statement 

from the responsible official which certifies the truth, accuracy, and 

completeness of the report.

h. Compliance Plan: The permit shall include a compliance plan that:

1. Describes the compliance status of an emissions unit with respect to 

each applicable federal requirement;

2. Describes how compliance will be achieved if an emissions unit is 

not in compliance with an applicable federal requirement at the time 

of permit issuance;

3. Assures that an emissions unit will continue to comply with those 

permit conditions with which it is in compliance; and

4. Assures that an emissions unit will comply, on a timely basis, with 

any applicable federal requirement that will become effective during 

the permit term.

i. Compliance Schedule: The permit shall include a compliance schedule for 

any emissions unit which is not in compliance with current applicable federal 

requirements at the time of permit issuance, renewal, and modification (if the 

non-compliance is with units being modified). The compliance schedule shall 

resemble and be at least as stringent as that contained in any judicial 

consent decree, administrative order, or schedule approved by the District 

hearing board if required by state law and shall require:
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Rules and Regulations 507 - 26 Placer County APCD

1. A statement that the emissions unit will continue to comply with 

those permit conditions with which it is in compliance;

2. A statement that the emissions unit will comply, on a timely basis, 

with an applicable federal requirement that will become effective 

during the permit term.

3. For each condition with which the emissions unit is not in compliance 

with an applicable federal requirement, a schedule of compliance 

which lists all preventative or corrective activities, and the dates 

when these activities will be accomplished; and

4. For each emissions unit that is not in compliance with an applicable 

federal requirement, a schedule of progress on at least a semiannual basis which includes: A) the date when compliance will be 

achieved, B) an explanation of why compliance was not, or will not 

be, achieved by the scheduled date, and C) a log of any preventative 

or corrective actions taken.

j. Right of Entry: The permit shall require that the source allow the entry of the 

District, ARB, or US Environmental Protection Agency officials for the 

purpose of inspection and sampling, including:

1. Inspection of the stationary source, including equipment, work 

practices, operations, and emission-related activity;

2. Inspection and duplication of records required by the permit to 

operate; and

3. Source sampling or other monitoring activities.

k. Compliance with Permit Conditions: The permit shall include the following 

provisions regarding compliance:

1. The permittee shall comply with all permit conditions;

2. The permit does not convey property rights or exclusive privilege of 

any sort;

3. The non-compliance with any permit condition is grounds for permit 

termination, revocation and reissuance, modification, enforcement 

action, or denial of permit renewal;

4. The permittee shall not use the "need to halt or reduce a permitted 

activity in order to maintain compliance" as a defense for noncompliance with any permit condition;

5. A pending permit action or notification of anticipated non-compliance 

does not stay any permit condition; and

6. Within a reasonable time period, the permittee shall furnish any 

information requested by the Air Pollution Control Officer, in writing, 

for the purpose of determining: 1) compliance with the permit, or 2) 

whether or not cause exists for a permit or enforcement action.

l. Emergency Provisions: The permit shall include the following emergency 

provisions:
April 8, 2004

Placer County APCD 507 - 27 Rules and Regulations

1. The permittee shall comply with the requirements of Rule 404, 

UPSET CONDITIONS, BREAKDOWN AND SCHEDULED 

MAINTENANCE, and the emergency provisions contained in all 

applicable federal requirements.

2. Within two weeks of an emergency event, the responsible official 

shall submit to the District a properly signed, contemporaneous log 

or other relevant evidence which demonstrates that:

A. An emergency occurred;

B. The permittee can identify the cause(s) of the emergency; 

and

C. The facility was being properly operated at the time of the 

emergency; and

D. All steps were taken to minimize the emissions resulting 

from the emergency; and

E. Within two working days of the emergency event, the 

permittee provided the district with a description of the 

emergency and any mitigating or corrective actions taken; 

and

3. In any enforcement proceeding, the permittee has the burden of 

proof for establishing that an emergency occurred.

m. Severability: The permit shall include a severability clause to ensure the 

continued validity of otherwise unaffected permit requirements in the event of 

a challenge to any portion of the permit.

n. Compliance Certification: The permit shall contain conditions for compliance 

certification which include the following requirements:

1. The responsible official shall submit a compliance certification to the 

US Environmental Protection Agency and the Air Pollution Control 

Officer every 12 months or more frequently as specified in an 

applicable requirement or by the District. All compliance reports and 

other documents required to be submitted to the District by the 

responsible official shall state that, based on information and belief 

formed after reasonable inquiry, the statements and information in 

the document are true, accurate, and complete;

2. The compliance certification shall identify the basis for each permit 

term or condition (e.g., specify the emissions limitation, standard, or 

work practice) and a means of monitoring compliance with the term 

or condition;

3. The compliance certification shall include the compliance status and 

method(s) used to determine compliance for the current time period 

and over the entire reporting period; and

4. The compliance certification shall include any additional inspection, 

monitoring, or entry requirement that may be promulgated pursuant 

to Sections 114(a) and 504(b) of the Federal Clean Air Act.
April 8, 2004

Rules and Regulations 507 - 28 Placer County APCD

o. Permit Life: With the exception of solid waste incinerators subject to Section 

129(e) of the Federal Clean Air Act, each permit to operate for any source, 

including acid rain units subject to Title IV of the Federal Clean Air Act, shall 

include a condition for a fixed term of five years from the time of issuance. A 

permit to operate for a solid waste incinerator shall have a permit term of 12 

years; however, the permit shall be reviewed at least every five years.

p. Payment of Fees: The permit shall include a condition to ensure that 

appropriate permit fees are paid on schedule. If fees are not paid on 

schedule, the permit is forfeited. Operation without a permit subjects the 

source to potential enforcement action by the District and the US 

Environmental Protection Agency pursuant to Section 502(a) of the Federal 

Clean Air Act.

q. Alternative Operating Scenarios: Where a responsible official requests that 

an alternative operating scenario be included in the permit for an emissions 

unit, the permit shall contain specific conditions for each operating scenario, 

including each alternative operating scenario. Each operating scenario, 

including each alternative operating scenario, identified in the permit must 

meet all applicable federal requirements and all of the requirements of this 

Section. Furthermore, the source is required to maintain a contemporaneous 

log to record each change from one operating scenario to another.

r. Voluntary Emissions Caps: To the extent applicable federal requirements 

provide for averaging emissions increases and decreases within a stationary 

source without case-by-case approval, a responsible official may request, 

subject to approval by the Air Pollution Control Officer, to permit one or more 

emissions unit(s) under a voluntary emissions cap. The permit for each 

emissions unit shall include federally-enforceable conditions requiring that:

1. All applicable federal requirements, including those authorizing 

emissions averaging, are complied with;

2. No individual emissions unit shall exceed any emissions limitation, 

standard, or other requirement;

3. Any emissions limitation, standard, or other requirement shall be 

enforced through continuous emission monitoring, where applicable; 

and

4. All affected emissions units under a voluntary emissions cap shall be 

considered to be operating in violation of the permit, if the voluntary 

emissions cap is exceeded.

s. Acid Rain Units Subject to Title IV: The permit for an acid rain unit shall 

include conditions that require compliance with any federal standard or 

requirement promulgated pursuant to Title IV (Acid Deposition Control) of the 

Federal Clean Air Act and any federal standard or requirement promulgated 

pursuant to Title V of the Federal Clean Air Act, except as modified by Title 

IV. Acid rain unit permit conditions shall include the requirements of 40 CFR 

Part 72.9 and the following provisions:

1. The sulfur dioxide emissions from an acid rain unit shall not exceed 

the annual emissions allowances (up to one ton per year of sulfur 

dioxide may be emitted for each emission allowance allotted) that the 

source lawfully holds for that unit under Title IV of the Federal Clean 

Air Act or the regulations promulgated pursuant to Title IV;
April 8, 2004

Placer County APCD 507 - 29 Rules and Regulations

2. Any increase in an acid rain unit's sulfur dioxide emissions 

authorized by allowances acquired pursuant to Title IV of the Federal 

Clean Air Act shall not require a revision of the acid rain portion of 

the operating permit provided such increases do not require permit 

revision under any other applicable federal requirement; and

3. Although there is no limit on the number of sulfur dioxide emissions 

allowances held by a source, a source with an acid rain unit shall not 

use these emissions allowances as a defense for noncompliance 

with any applicable federal requirement or District requirement, 

including District Rule 502, NEW SOURCE REVIEW; and

4. An acid rain unit's sulfur dioxide allowances shall be accounted for 

according to the procedures established in regulations promulgated 

pursuant to Title IV of the Federal Clean Air Act.

t. Portable Sources: The permit for any portable source, which may operate at 

two or more locations, shall contain conditions that require the portable 

source to:

1. Meet all applicable District, State, and federal requirements at each 

location;

2. Specify the monitoring methods, or other methods (e.g. air quality 

modeling) approved by the Air Pollution Control Officer, that will be 

used to demonstrate compliance with District, State, and federal 

requirements; and

3. Notify the Air Pollution Control Officer ten working days prior to a 

change in location.

u. Permit Revision Exemption: No permit revision shall be required under any 

approved economic incentives, marketable permits, emissions trading, and 

other similar programs or processes for changes that are provided for in the 

permit.

403 SUPPLEMENTAL ANNUAL FEE: The fees collected pursuant to this section shall 

supplement the fee requirements in District Regulation 6, FEES.

403.1 Annually, beginning in fiscal year 2004-2005, each facility subject to the requirements 

of Rule 507, FEDERAL OPERATING PERMIT PROGRAM, and each facility subject 

to the requirements of Rule 512, REQUEST FOR SYNTEHETIC MINOR SOURCE 

STATUS, shall pay the fee specified in Table 507-1 of the District Fee Schedule, to 

implement the Title V program.

403.2 At least thirty days before the annual operating fee due date for a facility established 

by Rule 601, PERMIT FEES, the Responsible Official or his/her designee will be 

notified by mail of the Title V Program Supplemental Annual Fee and the payment 

due date. No less than 30 days shall be provided for payment. 

403.3 If the Title V Program Supplemental Annual Fee is not paid when due, the fee shall 

be increased fifty (50) percent of the amount thereof, and the Responsible Official or 

his/her designee shall thereupon be notified by mail of the increased fee. Interest, at 

the legal rate, will accrue on a monthly basis. 

a. Title V Permit Holders: If the increased fee is not paid within 30 days after 

such notice, the Responsible Official or his/her designee shall thereupon be 

notified by mail that the issued Title V permit to operate shall be forfeit. 
April 8, 2004

Rules and Regulations 507 - 30 Placer County APCD

Operation without a permit subjects the source to potential enforcement 

action by the District and the U.S. EPA pursuant to Section 502(a) of the 

Federal Clean Air Act. All fees due, including accrued interest must be paid 

for a permit to be reinstated.

b. Synthetic Minor Permit Holders: If the increased fee is not paid within 30 days 

after such notice, the Responsible Official or his/her designee shall 

thereupon be notified by mail that action shall be taken to revoke the issued 

District permit to operate shall be forfeit. Operation without a permit subjects 

the source to potential enforcement action by the District pursuant to Rule 

501, GENERAL PERMIT REQUIREMENTS. All fees due, including accrued 

interest must be paid for a permit to be reinstated.

403.4 All fees specified by this section shall be automatically adjusted on July 1 of each 

year based on the change in annual California Consumer Price Index for the 

preceding calendar year. 
April 8, 2004

Placer County APCD 507 - 31 Rules and Regulations

Appendix I to Rule 507

List of Title V Insignificant Activities

Table of Contents

Page

A. General Criteria for Insignificant Activities 33

B. Criteria for Specific Source Categories 33

Fugitive Emission Sources Associated With Insignificant Activities 33

Combustion and Heat Transfer Equipment 33

Cooling Towers 34

Printing and Reproduction Equipment 34

Food Processing Equipment 34

Plastic and/or Rubber Processing 35

Storage Containers, Reservoirs, and Tanks - Fuel, Fuel Oil, Asphalt 35

Storage Containers, Reservoirs, and Tanks - General Organic and 35

VOC-containing Material

Storage Containers, Reservoirs, and Tanks - Inorganic Materials 36

Storage Containers, Reservoirs, and Tanks - Liquefied Gases 36

Compression and Storage of Dry Natural Gas 36

Transfer Equipment 37

Adhesive Application 37

Surface Coating 37

Solvent Cleaning 37

Abrasive Blasting 38

Brazing, Soldering, Welding, and Cutting Torches 38

Solder Leveler, Hydrosqueegee, Wave Solder Machine, 38

or Drag Solder Machine

Metal Products 38
April 8, 2004

Rules and Regulations 507 - 32 Placer County APCD

Table of Contents (Continued)

Page

Aerosol Can Puncturing or Crushing 39

Biotechnology Manufacture 39

Textile Dyeing, Stripping, or Bleaching 39

Laboratory Fume Hoods and Vents 39

Refrigeration Units 39
April 8, 2004

Placer County APCD 507 - 33 Rules and Regulations

A. General Criteria for Insignificant Activities

An insignificant activity is any activity, process, or emissions unit which is not subject to a source-specific 

requirement of a State Implementation Plan, preconstruction permit, or federal standardiand which: 1) 

meets the “Criteria for Specific Source Categories” below; or 2) emits no more than 0.5 tons per year of a 

federal hazardous air pollutant (HAP)ii and no more than two tons per year of a regulated pollutant that is 

not a HAP.

B. Criteria for Specific Source Categories

1. Fugitive Emissions Sources Associated With Insignificant Activities

Any valves, flanges, and unvented (except for emergency pressure relief valves) pressure vessels 

associated with an insignificant activity on this list.

Justification: Insignificant air pollutant emissions from this source

2. Combustion and Heat Transfer Equipment

a. Any combustion equipment, other than a gas turbine, that has a maximum heat input rating of no 

more than five million British thermal units (mmBtu) per hour (gross) and is equipped to be fired 

exclusively with natural gas, liquefied petroleum gas, or any combination thereof, provided the 

fuel contains no more than five per cent by weight of hydrocarbons heavier than butane (as 

determined by American Society for Testing and Materials (ASTM) test method E-260-73) and no 

more than 0.75 grains of total sulfur per 100 cubic feet of gas (as determined by ASTM test 

method D-1072-80).

Justification: 

100 lb NOx/106ft3* 5 mmBtu/hr/1,050 mmBtu/106ft3= 0.5 lb NOx/hr 

(Reference AP-42)

b. Any piston internal combustion engine (ICE) with a manufacturer’s maximum continuous rating of 

no more than 50 braking horsepower (bhp).

Justification: 

14 g NOx/hp-hr * 50 hp/454 g/lb = 1.5 lb NOx/hr

(Reference AP-42)

c. Any ICE which emits no more than 2 tons per year of Nox and is operated solely for the purpose 

of 1) providing power when normal power service fails (service failure does not include voluntary 

power reductions); or 2) the emergency pumping of water.

Justification:

14 g NOx/hp-hr * 300 bhp * 100 hr/yr/454 g/lb/2,000 lb/ton = 0.46 tons NOx/yr

(Reference AP-42)

1

Federal standards include: 40 CFR Parts 60 (New Source Performance Standards), 61 (National Emission 

Standards for Hazardous Air Pollutants), 63 (National Emission Standards for Hazardous Air Pollutants for Source 

Categories). 

2

HAPs are toxic substances listed pursuant to Section 112(b) of the Federal Clean Air Act.
April 8, 2004

Rules and Regulations 507 - 34 Placer County APCD

d. Any non-electric space heater that is not a boiler. 

Justification: 

94 lb NOx/106ft3 * 60,000,000 Btu/hr * 720 hr/yr/1,000 Btu/scf = 2 tons NOx/yr

Note: An electric space heater should be considered a trivial activity.

3. Cooling Towers

Any water cooling tower which: 1) has a circulation rate of less than 10,000 gallons per minute; and 

2) is not used to cool process water, water from barometric jets, or water from barometric 

condensers.

Justification: 

0.019 lb PM10/1,000 gal/min * 10,000 gal/min * 60 min/hr * 0.10 = 1.14 lb PM10/hr

4. Printing and Reproduction Equipment

a. Any printing, coating, or laminating activity which uses no more than two gallons per day of 

graphic arts materials, including: inks, coatings, adhesives, fountain solutions, thinners, 

retarders, or cleaning solutions.

Justification: 7.5 lb VOC/gal * 2 gal/day = 15 lb VOC/day

b. Any photographic process equipment, and control equipment venting such equipment, which 

reproduces images upon material sensitized to radiant energy.

Justification: Insignificant air pollutant emissions from this source

c. Any laser printing equipment. 

Justification: Insignificant air pollutant emissions from this source

5. Food Processing Equipment

a. Any oven in a food processing operation where less than 1,000 pounds of product are 

produced per day of operation.

Justification: 

13.7 lb VOC/2,000 lb product * 1,000 lb product = 6.9 lb VOC/day

(Reference AP-42)

b. Any smokehouse in which the maximum horizontal inside cross section area does not exceed 

20 square feet.

Justification:

0.3 lb PM10/ton of meat * 1 ton /day = 0.3 lb PM10/day

0.6 lb CO/ ton of meat * 1 ton/day = 0.6 lb CO/day 

(Reference AP-42)

d. Any confection cooker, and associated venting or control equipment, cooking edible products 

intended for human consumption.

Justification: Insignificant air pollutant emissions from this source
April 8, 2004

Placer County APCD 507 - 35 Rules and Regulations

6. Plastic and/or Rubber Processing

a. Any hot-wire cutting of expanded polystyrene foam, provided such cutting is limited to 

packaging operations.

Justification: 20 cuts/day * 0.27 lb VOC/cut = 5.4 lb VOC/day

[San Diego APCD emission factor based on BASF Wyandotte Corporation industrial hygiene 

tests]

b. Any equipment used exclusively for the extrusion or compression molding of rubber or 

plastics, provided no plasticizer or blowing agent is used.

Justification: Insignificant air pollutant emissions from this source

c. Any oven used exclusively for curing, softening, or annealing plastics except for ovens used 

to cure fiberglass reinforced plastics. 

Justification: Insignificant air pollutant emissions from this source

7. Storage Containers, Reservoirs, and Tanks - Fuel, Fuel Oil, Asphalt

a. Any temporary storage of gasoline in flexible containers to support equipment responding to 

an emergency or for the purposes of training to support such equipment.

Justification:

11.5 lb VOC/1,000 gal transferred * 5,000 gal * 2 transfers/yr = 115 lb VOC/yr

b. Any equipment with a capacity of no more than 1,500 gallons used exclusively for the storage 

of gasoline.

Justification:

Breathing losses =

30.5 lb VOC/1,000 gal capacity * 1,500 gal capacity = 45.8 lb VOC/yr

Working losses = 

10 lb VOC/1,000 gal throughput * 12,000 gal throughput/yr = 120 lb VOC/yr

Total losses = 0.08 ton VOC/yr

c. Any equipment with a capacity of no more than 19,800 gallons (471 barrels) used exclusively 

for the storage of petroleum distillates used as motor fuel with specific gravity 0.8251 or 

higher [40oAmerican Petroleum Institute (API) or lower] as determined by API test method 

2547 or ASTM test method D-1298-80.

Justification: 0.03 lb/1,000 gal throughput

(Reference U.S. EPA 450/4-90-003)

d. Any equipment used exclusively for the storage of fuel oils or non-air-blown asphalt with 

specific gravity 0.9042 or higher (25oAPI or lower) as determined by API test method 2547 or 

ASTM test method D-1298-80.

Justification: 0.03 lb/1,000 gal throughput

(Reference U.S. EPA 450/4-90-003)

8. Storage Containers, Reservoirs, and Tanks - General Organic and VOC-containing Material

a. Any equipment used exclusively for the storage of unheated organic material with: 1) an 
April 8, 2004

Rules and Regulations 507 - 36 Placer County APCD

initial boiling point of 150o Centigrade (C) [302oFahrenheit (F)] or greater as determined by 

ASTM test method 1078-86); or 2) a vapor pressure of no more than five millimeters mercury 

(mmHg) [0.1 pound per square inch (psi) absolute] as determined by ASTM test method D2879-86. 

Justification:

0.39 lb VOC/1,000 gal storage capacity-yr * 10,000 gal stored = 3.9 lb VOC/yr 

0.007 lb VOC/1,000 gal storage capacity-yr

(Reference U.S. EPA 450/4-90-003 for propylene glycol

b. Any equipment with a capacity of no more than 250 gallons used exclusively for the storage 

of unheated organic liquid.

Justification: 

30.5 lb VOC/1,000 gal storage capacity-yr * 250 gal capacity = 7.62 lb VOC/yr

17.9 lb VOC/1,000 gal storage capacity-yr * 250 gal capacity = 4.5 lb VOC/yr

(Reference U.S. EPA 450/4-90-003 for carbon tetrachloride)

c. Any equipment with a capacity of no more than 6,077 gallons used exclusively for the 

underground storage of unheated organic liquid with a vapor pressure no more than 75 mm 

Hg (1.5 psi absolute) as determined by ASTM test method 

D-2879-86. 

Justification: 

3.6 lb VOC/1,000 gal storage capacity-yr * 6,077 gal capacity = 21.9 lb VOC/yr

d. Any transport, delivery, or cargo tank or equipment on vehicles used to deliver VOCcontaining material.

Justification: 

0.005 lb VOC/1,000 gal

(Reference U.S. EPA 450/4-90-003)

9. Storage Containers, Reservoirs, and Tanks - Inorganic Materials

Any equipment used exclusively for the storage of fresh, commercial or purer grade of: 1) sulfuric or 

phosphoric acid with acid content of no more than 99 per cent by weight; or 2) nitric acid with acid 

content of no more than 70 per cent by weight.

Justification: Insignificant air pollutant emissions from this source

10. Storage Containers, Reservoirs, and Tanks - Liquefied Gases

Any equipment used exclusively for the storage of liquefied gases in unvented (except for emergency 

pressure-relief valves) pressure vessels.

Justification: Insignificant air pollutant emissions from this source

11. Compression and Storage of Dry Natural Gas

Any equipment used exclusively to compress or hold dry natural gas. Any ICE or other equipment 

associated with the dry natural gas should not be considered an insignificant activity unless such ICE 

or other equipment independently qualifies as an insignificant activity.

Justification: Insignificant air pollutant emissions from this source.
April 8, 2004

Placer County APCD 507 - 37 Rules and Regulations

12. Transfer Equipment

a. Any transfer equipment when used with the equipment described in 7-11, above.

Justification: Please see justification for 7-11, above

b. Any equipment used exclusively to transfer crude oil, asphalt, or residual oil from a delivery 

vehicle. 

Justification: 0.03 lb/1,000 gal transferred

(Reference U.S. EPA 450/4-90-003)

c. Any equipment used exclusively for the transfer of crude oil with 0.8762 specific gravity or 

higher (30 degrees API or lower) as measured by API test method 2547 or ASTM test 

method D-1298-80.

Justification: Transfer emissions for heavy crude oil are much less than 

1 lb/1,000 gal

d. Any equipment used exclusively for the transfer of less than 4,000 gallons per day of: 1) 

unheated organic material with an initial boiling point of 150o C (302oF) or greater as 

determined by ASTM test method D-86; or 2) fuel oil with 0.8251 specific gravity or higher 

(40oAPI or lower) as determined by API test method 2547 or ASTM test method D-1298-80.

Justification: Less than 0.03 lb/1,000 gal transferred

(Reference U.S. EPA 450/4-90-003)

13. Adhesive Application

Any adhesive operation in which no more than 173 gallons of adhesives are applied in a consecutive 

12-month period.

Justification: 11.1 lb VOC-HAP/gal* 0.52 * 173 gal/year = 0.5 TPY VOC-HAP 

Note: Districts with SIP-approved adhesive rules should determine if insignificant adhesive 

application at a Title V facility should be less than 173 gallons/year.

14. Surface Coating

a. Any equipment or activity using no more than one gallon per day of 

surface coating, or any combination of surface coating and solvent, which contains either 

VOC or hazardous air pollutants (HAP), or both. 

Justification: 7.5 lb VOC/gal * 1 gal/day = 7.5 lb VOC/day

b. Any coating operation using less than 10, 950 gallons per year of coating(s) that contain less 

than 20 grams of VOC per liter.

Justification: 0.16 lb VOC/gal * 10,950 gal/year = 1,752 lb VOC/yr

15. Solvent Cleaning

a. Any equipment or activity using no more than one gallon per day of solvent, or combination of 

solvent and surface coating, which contains either VOC or HAP, or both.

Justification: 7.5 lb VOC/gal * 1 gal/day = 7.5 lb VOC/day
April 8, 2004

Rules and Regulations 507 - 38 Placer County APCD

b. Any unheated, non-conveyorized cleaning equipment (not including control enclosures): 1) 

which has an open surface area of no more than 10.8 square feet (2 square meters) and 

internal volume of no more than 92.5 gallons; 2) which uses organic solvents with an initial 

boiling point of 302o F or greater as determined by ASTM test method 1078-78; and 3) from 

which the owner or operator can demonstrate, through solvent purchase and use records, 

that less than 25 gallons per year of solvent was lost exclusive of solvent loss from recycling 

or disposal.

Justification:

7.5 lb VOC/gal solvent * 25 gal solvent/yr/2,000 lb/ton = 0.094 ton VOC/yr

c. Any solvent wipe cleaning provided such cleaning: 1) utilizes a container applicator to limit 

emissions (e.g., squeeze containers with narrow tips, spray bottles, dispensers with pressdown caps, etc.); and 2) occurs at a facility which emits no more than five tons VOC 

(uncontrolled emissions) per calendar year from all solvent wipe-cleaning operations or which 

purchases no more than 1,500 gallons of solvent per calendar year. 

Justification: Less than 5 tons VOC per calendar year 

16. Abrasive Blasting

a. Any blast cleaning equipment using a suspension of abrasive material in water and the 

control equipment venting such blast cleaning equipment. 

Justification: Insignificant air pollutant emissions from this source

b. Any abrasive blast room when vented to a control device that discharges back to the room.

Justification: Insignificant air pollutant emissions from this source.

17. Brazing, Soldering, Welding, and Cutting Torches

Any brazing, soldering, welding, or cutting torch equipment used in manufacturing and 

construction activities and with the potential to emit hazardous air pollutant (HAP) metals, 

provided the total emissions of HAPs do not exceed 0.5 tons per year.

Justification: Less than 0.5 tons per year of total HAPs

Note: U.S. EPA’s List of Trivial Activities says brazing, soldering, and welding associated with 

maintenance is a trivial activity. Such activity performed as part of the manufacturing process is 

also a trivial activity, provided no metal HAPs are emitted. 

18. Solder Leveler, Hydrosqueegee, Wave Solder Machine, or Drag Solder Machine

Any solder leveler, Hydrosqueegee, Wave Solder Machine, or Drag Solder machine which uses 

less than an average of 10 pounds/day of any VOC-containing material.

Justification: Less than 10 pounds/day of VOC

19. Metal Products

Any equipment, and associated control equipment, used exclusively for the inspection of metal 

products.

Justification: Insignificant air pollutant emissions from this source. 
April 8, 2004

Placer County APCD 507 - 39 Rules and Regulations

20. Aerosol Can Puncturing or Crushing

Any aerosol can puncturing or crushing operation that processes less than 500 cans per day, 

provided such operation uses a closed loop recovery system.

Justification: 0.02 lb VOC/aerosol can * 500 aerosol cans/day = 10 lb VOC/day

[San Diego County APCD emission factor based on saturated vapor in aerosol can]

21. Biotechnology Manufacture

Provided the total uncontrolled VOC emissions from any biotechnology manufacturing facility 

does not exceed five tons per year, any equipment used in the manufacture of:

a. Biotechnology pharmaceutical products used exclusively in federal Food and Drug 

Administration (FDA)-approved clinical trials;

b. Biomedical devices and diagnostic kits used exclusively in FDA-approved clinical trials and 

laboratory failure analysis testing; or

c. Bioagricultural products for exclusive use in field testing required to obtain FDA, U.S. EPA, 

United States Department of Agriculture (USDA), or California Environmental Protection 

Agency (Cal-EPA) approval.

Justification: No more than 2 tons VOC/year

22. Textile Dyeing, Stripping, or Bleaching

Any equipment used for dyeing, stripping, or bleaching textiles, provided no organic solvents, 

diluents, or thinners are used. 

Justification: Insignificant air pollutant emissions from this source

23. Laboratory Fume Hoods and Vents

Any laboratory fume hood or vent, provided such equipment is used exclusively for the purpose of 

teaching, research, or quality control.

Justification: Insignificant air pollutant emissions from this source 

Note: According to the U.S. EPA’s List of Trivial Activities, “many lab fume hoods or vents might 

qualify for treatment as insignificant”

24. Refrigeration Units

Any refrigeration unit provided the unit: 1) contains less than 50 pounds of refrigerant; and 2) is 

not used in conjunction with air pollution control equipment.

Justification: Insignificant air pollutant emissions from this source.
April 8, 2004

Rules and Regulations 507 - 40 Placer County APCD

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