United States Environmental Protection Agency

General Permit for New or Modified Minor Sources of Air Pollution in 

Indian Country

http://www.epa.gov/air/tribal/tribalnsr.html

General Air Quality Permit for New or Modified True Minor Source Boilers

Last Modified: July 2, 2014

Version 1.0

Information about this General Permit:

Applicability

Pursuant to the provisions of the Clean Air Act (CAA), Subchapter I, part D and 40 CFR part 49, subpart C, this permit 

authorizes the construction or modification, and operation of each stationary boiler for which a reviewing authority 

issues an Approval of the Request for Coverage (permitted source). 

Eligibility

To be eligible for coverage under this general permit, the permitted source must qualify as a true minor source as 

defined in 40 CFR 49.152. 

Request for Coverage

Requirements for submitting a Request for Coverage are contained in Section 7 of this general permit.

Incorporation of Documents

The information contained in each reviewing authority’s Approval of the Request of Coverage is hereby incorporated 

into this general permit. 

Termination

Section 6 of this general permit addresses a reviewing authority’s ability to revise, revoke and reissue, or terminate this 

general permit. It also addresses the reviewing authority’s ability to terminate an individual permitted source’s Approval

of the Request for Coverage under this general permit. 

Definitions

The terms used herein shall have the meaning defined in 40 CFR 49.152 and in Attachment B of this permit. If a term is 

not defined, it shall be interpreted in accordance with normal business use. 
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Permit Terms and Conditions

The following applies to each permittee and permitted source with respect to only the affected emissions units and any 

associated air pollution control equipment listed in that permitted source’s Approval of the Request for Coverage.

Section 1 – General Provisions

1. Construction and Operation

The permittee shall construct or modify, and operate the affected emission units and any associated air pollution 

control equipment in compliance with this permit and all other applicable federal air quality regulations; and in a 

manner consistent with the Request for Coverage. 

2. Location

This permit only authorizes the permittee to construct or modify, and operate the permitted source in the location

listed in the reviewing authority’s Approval of the Request for Coverage for that permitted source.

3. Liability

This permit does not release the permittee from any liability for compliance with other applicable federal and tribal 

environmental laws and regulations, including the CAA. 

4. Severability

The provisions of this permit are severable. If any portion of this permit is held invalid, the remaining terms and 

conditions of this permit shall remain valid and in force. 

5. Compliance

The permittee must comply with all provisions of this permit, including emission limitations that apply to the 

affected emissions units at the permitted source. Noncompliance with any permit provision is a violation of the 

permit and may constitute a violation of the CAA; and is grounds for an enforcement action; and is grounds for the 

reviewing authority to revoke the Approval of the Request for Coverage and terminate the permitted source’s 

coverage under this general permit. 

6. National Ambient Air Quality Standards (NAAQS)/Prevention of Significant Deterioration (PSD) Protection 

The permitted source must not cause or contribute to a NAAQS violation and, in an attainment area, must not cause 

or contribute to a PSD increment violation. 

7. Unavailable Defense

It is not a defense for the permittee in an enforcement action that it would have been necessary to halt or reduce 

the permitted activity in order to maintain compliance with the provisions of this permit. 

8. Property Rights

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

9. Information Requests

You, as the permittee, shall furnish to the reviewing authority, within a reasonable time, any information that the 

reviewing authority may request in writing to determine whether cause exists for revising, revoking and reissuing, or 

terminating the permit or to determine compliance with the permit. For any such information claimed to be 

confidential, the permittee must submit a claim of confidentiality in accordance with 40 CFR part 2 subpart B.
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10. Inspection and Entry

Upon presentation of proper credentials, the permittee must allow a representative of the reviewing authority to:

a. Enter upon the premises where a source is located or emissions-related activity is conducted or where records 

are required to be kept under the conditions of the permit;

b. Have access to and copy, at reasonable times, any records that are required to be kept under the conditions of 

the permit;

c. Inspect, during normal business hours or while the source is in operation, any facilities, equipment (including 

monitoring and air pollution control equipment), practices or operations regulated or required under the 

permit;

d. Sample or monitor, at reasonable times, substances or parameters for the purpose of assuring compliance with 

the permit or other applicable requirements; and

e. Record any inspection by use of written, electronic, magnetic and photographic media.

11. Posting of Coverage

Sections 1 through 6 of this general permit, and the most current Approval of the Request for Coverage for the 

permitted source, must be posted prominently at the facility, and each affected emissions unit and any 

associated air pollution control equipment must be labeled with the identification number listed in the 

Approval of the Request for Coverage for that permitted source.

12. Duty to Obtain Source-Specific Permit

If the reviewing authority intends to terminate a permitted source’s coverage under this general permit for cause as 

provided in Section 6 of this general permit, then the permittee shall apply for and obtain a source-specific permit 

under 40 CFR 49.155 as required by the reviewing authority. 

13. Credible Evidence

For the purpose of establishing whether the permittee violated or is in violation of any requirement of this permit, 

nothing shall preclude the use, including the exclusive use, of any credible evidence or information relevant to 

whether a source would have been in compliance with applicable requirements if the permittee had performed the

appropriate performance or compliance test or procedure.

14. Setbacks

The exhaust from each boiler or heater must be located a minimum of 50 feet from the nearest property line and 

150 feet from any adjacent residential or commercial establishment or place of public assembly.

Section 2: Emission Limitations and Standards

15. The permittee shall maintain and operate each affected emission unit, including any associated air pollution control 

equipment, in a manner consistent with good air pollution control practices for minimizing emissions of NSR 

regulated pollutants and considering the manufacturer’s recommended operating procedures at all times, including 

periods of startup, shutdown, maintenance and malfunction. The reviewing authority will determine whether the 

permittee is using acceptable operating and maintenance procedures based on information available to the 

reviewing authority which may include, but is not limited to, monitoring results, opacity observations, review of 

operating and maintenance procedures, and inspection of the permitted source.

16. The maximum rated capacity of any individual boiler at this facility shall be less than 100 million British thermal units

(MMBtu)/hour (hr).
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17. The maximum rated capacity of any individual process heater at this facility shall be:

a. Less than 10 MMBtu/hr if located at a permitted source in an ozone attainment, unclassifiable or 

attainment/unclassifiable area.

b. Less than 10 MMBtu/hr if located at a permitted source in a marginal, moderate or serious ozone 

nonattainment areas.

c. Less than 2 MMBtu/hr if located at a permitted source in a severe or extreme ozone nonattainment area.

d. A process heater may exceed the above size limitations if it meets the emission limitations applicable to boilers.

18. The combined maximum rated capacity of all boilers and process heaters at the permitted source shall not exceed

the following parameters, as applicable:

a. Each permitted source employing only natural gas boilers and process heaters shall meet the following 

combined maximum allowable rating of emission units, based on ozone designation/attainment area status. 

Natural gas-only boilers and process heaters may also use diesel or biodiesel as an emergency backup fuel for 

up to 500 hours per calendar year.

Permitted Source Using Only Natural Gas in Boilers and Heaters

Types of Emission Unit

Combined Allowed Maximum Rating of Emissions Units

Ozone Designation/Attainment Area Status

Attainment, 

Unclassifiable or

Attainment / 

Unclassifiable

Nonattainment

Marginal, Moderate, 

or Serious Severe

All boilers rated ≥ 10.0 MMBtu/hr 160 MMBtu/hr 160 MMBtu/hr 100 MMBtu/hr

All small boilers and process

heaters rated < 10.0 MMBtu/hr 20 MMBtu/hr 20 MMBtu/hr 20 MMBtu/hr

All emergency generators (all fuels) 1500 horsepower 

(hp)

1500 hp 1000 hp

b. Each permitted source employing boilers and heaters that use gaseous and/or liquid fuels shall meet the 

following combined maximum allowable rating of emission units, based on ozone designation/attainment area 

status. 

Permitted Source Using Gaseous and/or Liquid Fuels in Boilers and Heaters

Types of Emission Units

Combined Maximum Rating of Emissions Units

Ozone Designation/Attainment Status

Attainment, 

Unclassifiable or 

Attainment / 

Unclassifiable

Nonattainment

Marginal, 

Moderate, or 

Serious

Severe

All boilers rated ≥ 10.0 MMBtu/hr 120 MMBtu/hr 120 MMBtu/hr 100 MMBtu/hr

All small boilers and auxiliary 

heaters rated < 10.0 MMBtu/hr 20 MMBtu/hr 20 MMBtu/hr 20 MMBtu/hr

All emergency generators (all fuels) 1500 hp 1500 hp 1000 hp
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c. Each permitted source locating in an extreme ozone nonattainment area shall employ only natural gas boilers 

and heaters that meet the following combined maximum allowable rating of emission units. 

Permitted Sources Locating in Extreme Ozone Nonattainment Areas 

(Using Only Natural Gas in Boilers and Heaters)

Types of Emission Units Combined Allowed Maximum 

Rating of Emissions Units

All boilers rated ≥ 2.0 MMBtu/hr 100 MMBtu/hr

All small boilers and auxiliary 

heaters rated < 2.0 MMBtu/hr 20 MMBtu/hr

All emergency generators (all fuels) 750

19. For each affected boiler rated at 10.0 MMBtu/hr or greater, nitrogen oxide (NOX) emissions shall not exceed 30.0 

parts per million, dry volume (ppmdv) at 3% O2 or 0.037 pounds (lbs)/MMBtu based on a 15-minute average. 

20. For each affected boiler rated at 10.0 MMBtu/hr or greater, carbon monoxide (CO) emissions shall not exceed 400.0 

ppmdv at 3% O2 or 0.30 lbs/MMBtu based on a 15-minute average. 

21. Each affected boiler, heater, or engine burning liquid fuels shall use diesel or biodiesel. The sulfur content of diesel 

and biodiesel shall not exceed 0.0015 parts per million (ppm) by weight.

22. For each affected boiler or heater, the permittee shall not cause to be discharged into the atmosphere any gases 

that exhibit 5 percent opacity or greater averaged over any six consecutive minute period.

23. Each boiler located at a permitted source in an extreme or severe ozone nonattainment area shall meet these

additional requirements:

a. The NOx emissions from each boiler rated at 2.0 MMBtu/hr or greater shall not exceed 9 ppmdv at 3% oxygen or 

0.011 lbs/MMBtu based on a 15-minute average.

b. The CO emissions from each boiler rated at 2.0 MMBtu/hr or greater shall not exceed 400 ppmdv at 3% O2 or 

0.30 lbs/MMBtu based on a 15-minute average.

24. Each boiler stack shall:

a. Be above the buildings in the vicinity,

b. Discharge vertically, and

c. Have no obstructions to gas flow such as rain caps, except for hinged rain caps.

25. Each boiler must undergo tune-ups on a biennial basis. Each biennial tune-up must be conducted no more than 25 

months after the previous tune-up. The first biennial tune-up must be no later than 25 months after the Approval of 

Request for Coverage is issued. The permittee shall perform each tune-up as follows:

a. The permittee shall inspect the burner and clean or replace any components as necessary. This step may be 

delayed until the next scheduled shutdown of the unit, but it must be performed at least once every 36 months.

b. The permittee shall inspect the flame pattern and adjust the burner as necessary to optimize the flame pattern. 

The adjustment should be consistent with the manufacturer’s specifications.

c. The permittee shall inspect the system controlling the air-to-fuel ratio and ensure that it is correctly calibrated 

and functioning properly.

d. The permittee shall optimize total emissions of CO. This optimization should be consistent with the 

manufacturer’s specifications.
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e. The permittee shall measure the concentrations in the effluent stream of CO in parts per million, by volume, and 

oxygen in volume percent, before and after the adjustments are made.

26. If the permitted source includes one or more emergency engines, each affected emergency engine shall:

a. Be equipped with a non-resettable hour meter;

b. If using fuel oil, use diesel or biodiesel containing no more than 15 ppm (0.0015 percent) sulfur;

c. Meet the following certification requirements for compression ignition emergency engines:

i. For model year 2006 and later engines, the engine shall be certified to the applicable standards in 40 

CFR part 89. 

d. Meet the following requirements for spark ignition emergency engines manufactured on or after January 

1, 2009:

i. Gasoline and rich burn liquified petroleum gas (LPG) emergency engines greater than 25 hp and less 

than 130 hp shall be certified by the manufacturer to the Phase I standards in 40 CFR 90.103;

ii. Gasoline and rich burn LPG emergency engines greater than or equal to 130 hp shall be certified by 

the manufacturer to the standards in 40 CFR 1048; and

iii. All other spark ignition emergency engines (those that are not gasoline or rich burn LPG) greater than 

25 HP shall meet the standards for emergency engines in Table 1 to 40 CFR Subpart JJJJ. If the 

emergency engine is not certified to the standards in Table 1 to 40 CFR Subpart JJJJ, then the 

permittee shall demonstrate compliance with the applicable emission limitations as required by 

Condition 30. 

e. If not required to meet the standards in Conditions 26.c or 25.d based on the engine model year or date 

of manufacture:

i. Follow the manufacturer’s emission-related operation and maintenance instructions or develop your 

own maintenance plan which must provide to the extent practicable for the maintenance and 

operation of the engine in a manner consistent with good air pollution control practice for minimizing 

emissions;

ii. Change oil and filter and inspect every hose and belt every 500 hours of operation or annually, 

whichever comes first; and

iii. Inspect air cleaner or spark plugs, as applicable, every 1,000 hours of operation, or annually, 

whichever comes first.

Section 3: Monitoring and Testing Requirements

27. Visible Emissions Survey 

At least once during each calendar week in which the permitted sources operates, the permittee shall perform a 

visible emissions survey of all affected emission units subject to the opacity limit in Condition 22. The survey shall be 

performed during daylight hours by an individual trained in EPA Method 22 while the source is in operation. If visible 

emissions are detected during the survey, the permittee shall either:

a. Take corrective action so that within 24 hours no visible emissions are detected from any emission units while 

they are in operation; or

b. Demonstrate compliance with the opacity limit at all units that discharged visible emissions during the survey 

using EPA Method 9 by an individual trained and certified in Method 9.

28. Initial Performance Testing

Within 60 days after achieving the maximum production rate at which the permitted source will operate the 

affected emissions unit(s), but not later than 180 days after the first day of operation after the reviewing authority 

issues the Approval of the Request for Coverage, the permittee shall perform an initial performance test to verify 
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compliance with the applicable emission limitations in Conditions 19, 20 and 23. Performance tests shall be 

performed:

a. According to an EPA-approved test plan;

b. While the permitted source is operating under typical operating conditions;

c. Using test methods from 40 CFR part 60, Appendix A. In lieu of the test methods from 40 CFR part 60, Appendix 

A, measurements for NOx and CO may be taken using portable analyzers according to ASTM D6522-00, as 

incorporated by reference in 40 CFR 63.14(b)(27); and

d. Simultaneously for CO and NOx whenever either one needs to be tested.

29. Additional Performance Testing

 Ongoing performance tests meeting the criteria of the initial performance test in Condition 28 shall be performed:

a. When required by the reviewing authority; and

b. At least every five years.

30. Emergency Engines Not Certified by the Manufacturer

For each emergency engine required to meet the standards in Condition 26.d.iii, but that is not certified by the 

manufacturer to the applicable standards, and is not required to be certified by the manufacturer, the permittee

shall:

a. For an engine greater than 25 hp and less than or equal to 500 hp, conduct an initial performance test as 

follows:

i. Within 60 days after achieving the maximum production rate at which the permitted source will operate, 

but not later than 180 days after the first day of operation after issuance of the Approval of the Request for 

Coverage;

ii. The test shall verify compliance with the applicable emission limitations in Condition 26.d.iii.;

iii. According to a test plan approved by the reviewing authority;

iv. While the permitted source is operating under typical operating conditions;

v. With at least three test runs, each of at least 1 hour duration;

vi. Within 10 percent of peak load for the engine;

vii. Using test methods from 40 CFR part 60, Appendix A unless alternative methods are approved by the 

reviewing authority in writing in advance of the test; and

viii. Simultaneously for carbon monoxide and nitrogen oxides whenever either one needs to be tested.

b. For an engine greater than 500 hp, conduct an initial performance test and subsequent performance testing 

every 8,760 hours of operation or 3 years, whichever comes first as follows:

i. The performance tests shall verify compliance with the applicable emission limitations in Condition 26.d.iii.

ii. The performance tests shall be performed according to Conditions 30.a.iii through viii.

Section 4: Recordkeeping Requirements

31. The permittee shall maintain all records required to be kept by this permit onsite for at least five years from the date 

of origin, unless otherwise stated.

32. The permit application and all documentation supporting that application shall be maintained by the permittee for 

the duration of time the affected emissions unit(s) is/are covered under this permit.

33. The permittee shall keep records of diesel and biodiesel supplier certifications to demonstrate compliance with the 

sulfur content limits in Conditions 21 and 26.b. The certification shall contain the sulfur content of the fuel and the 

method used to determine the sulfur content.
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34. Each natural gas boiler or heater using diesel or biodiesel as an emergency backup fuel shall maintain records on a 

quarterly basis of the hours of emergency fuel use.

35. The dates and results of each visible emissions survey performed pursuant to Condition 27 shall be recorded. At a 

minimum, records shall include:

a. The name of the person, company or entity conducting the survey;

b. Whether visible emissions were detected from any affected emission unit;

c. Any corrective action taken;

d. The result of any corrective action; and

e. The results of any Method 9 tests performed.

36. The permittee shall record the concentration of CO in the effluent stream in parts per million, by volume, and 

oxygen in volume percent, measures before and after the tune-up of each boiler or heater according to Condition 

25.

37. The permittee shall record any corrective actions taken as part of a tune-up of a boiler.

38. For each emergency engine, the permittee shall:

a. Maintain a log of all maintenance activities conducted; and

b. Maintain a log of the hours of operation, including the date, time, duration, and reason(s) for use.

39. The results of each performance test conducted pursuant to Condition 28, 29 and 30 shall be recorded. At a 

minimum, the permittee shall maintain records of:

a. The date of each test;

b. Each test plan;

c. Any documentation required to approve an alternate test method;

d. Conditions during the test, including the engine power rating; 

e. The results of each test; and

f. The name of the company or entity conducting the analysis. 

Section 5: Notification and Reporting Requirements

40. Notification of Construction or Modification, and Operations

The permittee shall submit a written or electronic notice to the reviewing authority within 30 days from when the 

permittee begins actual construction or modification, and when the permittee begins operations or resumes 

operation.

41. Notification of Change in Ownership

If the permitted source changes ownership, then the permittee must submit a written or electronic notice to the 

reviewing authority within 90 days after the change in ownership is effective. In the report, the permittee must 

provide the reviewing authority a written agreement containing a specific date for transfer of ownership, and an 

effective date on which the new owner assumes partial and/ or full coverage and liability under this permit. The 

submittal must identify the previous owner, and update the name, street address, mailing address, contact 

information, and any other information about the source if it would change as a result of the change of ownership. 

The permittee shall ensure that the permitted source remains in compliance with the general permit during any 

such transfer of ownership. 
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42. Notification of Closure 

The permittee must submit a report of any permanent or indefinite closure to the reviewing authority in writing 

within 90 days after the cessation of all operations at the permitted source. The notification must identify the 

owner, the current location, and the last operating location of the permitted source. It is not necessary to submit a 

report of closure for regular, seasonal closures. 

43. Annual Reports

The permittee shall submit an annual report on or before March 15 of each year to the reviewing authority. The 

annual report shall cover the period from January 1 to December 31 of the previous year and shall include:

a. An evaluation of the permitted source’s compliance status with the requirements of Section 2 during the 

calendar year;

b. Summaries of the required monitoring, testing and recordkeeping in Sections 3 and 4; and

c. Summaries of deviation reports submitted pursuant to Condition 44.

44. Deviation Reports

The permittee shall promptly report to the reviewing authority any deviations from permit requirements including 

deviations attributable to upset conditions. Deviation reports shall include:

a. Identity of the affected emissions unit(s) where the deviation occurred;

b. Nature of the deviation;

c. Length of time of the deviation;

d. Probable cause of the deviation; and

e. Any corrective actions or preventive measures taken as a result of the deviation to minimize emissions from the 

deviation and to prevent future deviations.

f. For the purposes of this permit, promptly means:

i. Within 72 hours of discovery for deviations from any opacity or emission limit in Condition 18, 19, 20 or 22; 

or

ii. At the time of the annual report required by Condition 43 for all other deviations.

45. Performance Test Reports

The permittee shall submit a test report to the reviewing authority within 45 days after the completion of any 

required performance test. At a minimum, the test report shall include:

a. A description of the emissions unit and sampling location(s);

b. The time and date of each test;

c. A summary of test results, reported in units consistent with the applicable standard;

d. A description of the test methods and quality assurance procedures used;

e. A summary of any deviations from the proposed test plan and justification for why the deviation(s) was

necessary;

f. The amount and type of fuel burned, raw material consumed, and/or product produced, as applicable, during 

each test run;

g. Operating parameters of the source and control equipment during each test run; 

h. Sample calculations of equations used to determine test results in the appropriate units; and

i. The name of the company or entity performing the analysis.

46. Reporting and Notification Address

The permittee shall send all required reports to the reviewing authority at the mailing address specified in the 

Approval of the Request for Coverage. 
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47. Signature Verifying Truth, Accuracy, and Completeness 

All reports required by this permit shall be signed by a responsible official as to the truth, accuracy, and 

completeness of the information. The report must state that, based on information and belief formed after 

reasonable inquiry, the statements and information are true, accurate, and complete. If the permittee discovers that 

any reports or notification submitted to the reviewing authority contain false, inaccurate, or incomplete 

information, the permittee shall notify the reviewing authority immediately and correct or amend the report as soon 

as is practicable. 

Section 6: Changes to this General Permit

48. Revising, Reopening, Revoking and Reissuing, or Terminating for Cause 

The permit may be revised, reopened, revoked and reissued or terminated for cause. The filing of a request by you, 

the permittee, for a permit revision, revocation and re-issuance, or termination, or of a notification of planned 

changes or anticipated noncompliance does not stay any permit condition. This provision also applies to the 

documents incorporated by reference.

49. Terminating Coverage under this Permit 

The reviewing authority may terminate a previously issued Approval of the Request for Coverage, and thereby

terminate that permittee’s authorization to construct or modify, and that permitted source’s authorization to

operate under this general permit for cause as defined in Attachment B. The reviewing authority may provide the 

permittee with notice of the intent to terminate, and delay the effective date of the termination to allow the 

permittee to obtain a case-by-case permit under 40 CFR 49.155.

50. Change in Ownership 

If the permitted source changes ownership, the reviewing authority may change the Approval of the Request of 

Coverage to reflect the new ownership in accordance with the administrative amendment provisions in 40 CFR 

49.159(f).

Section 7: Obtaining Coverage under this General Permit

51. To obtain coverage under this general permit, an applicant must submit a Request for Coverage to the appropriate 

reviewing authority for the area in which the permitted source is or will be located. Attachment C contains a list of 

reviewing authorities and their areas of coverage. 

52. You must also submit a copy of the Request for Coverage to the Indian Governing Body for any area within Indian 

country in which the permitted source will locate at the same time you submit your Request for Coverage to the 

reviewing authority.
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Attachment A: Abbreviations and Acronyms

ASTM American Society for Testing and Materials

Btu British thermal unit

CAA Federal Clean Air Act

CFR Code of Federal Regulations

CO carbon monoxide

EPA United States Environmental Protection Agency

hp horsepower

LPG liquified petroleum gas

MM million

NAAQS National Ambient Qir Quality Standards

NOx nitrogen oxides, except N2O

NSR new source review

ppm parts per million

ppmdv parts per million, dry volume

PSD Prevention of Significant Deterioration
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Attachment B: Definitions

For the purposes of this general permit:

Approval of the Request for Coverage means a reviewing authority’s letter granting an applicant’s request for 

construction or modification, and operation of a true minor source under the terms and conditions of this general 

permit.

Biodiesel means a combustion fuel made from fatty acids of methyl esters that complies with the specifications of ASTM 

6751.

Boiler means an enclosed device using controlled flame combustion in which water is heated to recover thermal energy 

in the form of steam and/or hot water. Controlled flame combustion refers to a steady-state, or near steady-state, 

process wherein fuel and/or oxidizer feed rates are controlled. A device combusting solid waste, as defined in §241.3 of 

this chapter, is not a boiler unless the device is exempt from the definition of a solid waste incineration unit as provided 

in section 129(g)(1) of the CAA. Process heaters are excluded from the definition of Boiler.

Cause means with respect to the reviewing authority’s ability to terminate a permitted source’s coverage under a permit 

that:

1. The permittee is not in compliance with the provisions of this general permit; 

2. The reviewing authority determines that the emissions resulting from the construction or modification of the 

permitted source significantly contribute to NAAQS violations, which are not adequately addressed by the 

requirements in this general permit. 

3. The reviewing authority has reasonable cause to believe that the permittee obtained Approval of the Request 

for Coverage by fraud or misrepresentation. 

4. The permittee failed to disclose a material fact required by the Request for Coverage or the regulations 

applicable to the permitted source of which the applicant had or should have had knowledge at the time the 

permittee submitted the Request for Coverage.

Construction means any physical change or change in the method of operation including fabrication, erection, 

installation, demolition, or modification of an emission unit that would result in a change of emissions.

Distillate fuel means fuel oils, including recycled oils that comply with the specifications for fuel oil numbers 1 and 2, as 

defined by ASTM 396, or equivalent.

Natural gas means a mixture of hydrocarbons that is a gas at standard conditions and is either composed of at least 70 

percent methane by volume or has a gross calorific value of between 950 and 1150 Btu per dry standard cubic foot.

Permittee means the owner or operator of a permitted source.

Permitted source means each boiler for which a reviewing authority issues an Approval of the Request for Coverage.

Process heater means an enclosed device using controlled flame, and the unit's primary purpose is to transfer heat 

indirectly to a process material (liquid, gas, or solid) or to a heat transfer material (e.g., glycol or a mixture of glycol and 

water) for use in a process unit, instead of generating steam. Process heaters are devices in which the combustion gases 

do not come into direct contact with process materials. Process heaters include units that heat water/water mixtures for 

pool heating, sidewalk heating, cooling tower water heating, power washing, or oil heating.
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Request for Coverage means a permit application that contains all the information required in the standard application 

form.

Standard cubic foot means a measure of the quantity of a gas equal to a cubic foot of volume at a temperature of 68 °F 

and a pressure of 29.92 inches of mercury.
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Attachment C – List of the EPA Reviewing Authorities and Areas of Coverage

EPA 

Region

Address Area Covered Phone Number

Region 1 1 Congress Street

Suite 1100

Boston, MA 02114–2023

Connecticut, Maine, Massachusetts, 

New Hampshire, Rhode Island, and 

Vermont

888- 372-7341

617-918-1111

Region 2 290 Broadway

25th Floor

New York, NY 10007–1866

New Jersey, New York, Puerto Rico, and 

Virgin Islands

877-251-4575

Region 3 1650 Arch Street

Philadelphia, PA 19103–2187

Delaware, District of Columbia, 

Maryland, Pennsylvania, Virginia, and 

West Virginia

800-438-2474

215-814-5000

Region 4 Sam Nunn Atlanta Federal Center

61 Forsyth Street SW

12th Floor

Atlanta, GA 30303

Alabama, Florida, Georgia, Kentucky, 

Mississippi, North Carolina, South 

Carolina, and Tennessee

800-241-1754

404-562-9000

Region 5 77 West Jackson Boulevard

Chicago, IL 60604

Illinois, Indiana, Michigan, Minnesota, 

Ohio, and Wisconsin

800-621-8431

312-353-2000

Region 6 1445 Ross Avenue

Dallas, TX 75202

Arkansas, Louisiana, New Mexico, 

Oklahoma, and Texas 800-887-6063

214-665-2760

Region 7 901 North 5th Street

Kansas City, KS 66101–2907

Iowa, Kansas, Missouri, and Nebraska 800-223-0425

913-551-7003

Region 8 1595 Wynkoop Street

Denver, CO 80202–1129

Colorado, Montana, North Dakota, 

South Dakota, Utah, and Wyoming

800-227-8917

303-312-6312

Region 9 75 Hawthorne Street

San Francisco, CA 94105

American Samoa, Arizona, California, 

Guam, Hawaii, Navajo Nation, Nevada, 

and Northern Mariana Islands

866-372-9378

415-947-8000

Region 10 1200 Sixth Avenue

Seattle, WA 98101

Alaska, Idaho, Oregon, and Washington 800-424-4372

206-553-1200