An owner or operator applying for a General State Permit for Internal Combustion Engines used as Emergency Generators (GSP-EG) may choose to comply with the terms and conditions of the General State Permit instead of obtaining a State Permit to Operate.
Purpose
To regulate and limit air emissions from emergency generators.
Applicability
The owner or operator of an internal combustion engine used as an emergency generator that operates no more than 500 hours per year during any consecutive 12-month period and that is large enough to require a permit may choose to permit that emergency generator with the GSP-EG if the engine is located at a facility whose facility-wide actual emissions are less than the major source threshold levels. Major source threshold levels are 50 tons per year of nitrous oxides (NOx) in Hillsborough, Rockingham, Merrimack and Stafford counties and 100 tons per year of NOx in all other counties, 50 tons per year of volatile organic compounds (VOCs), 100 tons per year of carbon monoxide (CO), 100 tons per year of particulate matter, 100 tons per year of sulfur dioxide (SO2), 10 tons per year of any single hazardous air pollutant (HAP) and 25 tons per year of any combined HAP.
This permit is applicable to one or more internal combustion engines, excluding any unit with a design rating less than or equal to 150,000 Btu/hr, operated at a source as an emergency generator, which either:
1) Combusts liquid fuel oil for which the combined total design gross heat input for all such engines is greater than or equal to 1.5 million Btu/hr; or
2) Combusts natural gas or liquefied propane gas for which the combined total design gross heat input of all such engines is greater than or equal to 10 million Btu/hr.
See Env-A 101.661 Definitions/Emergency Generator
Statute and Administrative Rules
RSA 125-C:11 Air Pollution Control/Permit Required
RSA 125-C:12 Air Pollution Control/Administrative Requirements
RSA 125-C:13 Air Pollution Control/Criteria for Denial; Suspension or Revocation; Modification
Env-A 101.661 Definitions/Emergency Generator (Env-A 100 Organizational Rules)
Env-A 610 General State Permits and General Permits Under Title V (Env-A 600: Statewide Permit System)
Env-A 620 Procedures for Establishing and Reestablishing General State Permits (Env-A 600: Statewide Permit System)
Application
The following data is required for application:
1) An affidavit to demonstrate title, right, and interest in the property consistent with Env-A 605.02 Proof of Source Ownership or Permissible Use and, if necessary, Env-A 605.03, Proof of Legal Authority (Env-A 600 Statewide Permit System), Sample Ownership Affidavit 
;
2) GSP-1 General Facility Information All Registrations 
(Please see Instructions for Form GSP-1); and
3) GSP-2 Internal Combustion Engines Used as Emergency Generators (Please see Instructions for Form GSP-2)
Applicants may apply online for a GSP for emergency generators using Instructions for filling out Online Registration for General State Permit for Emergency Generator
Fee
No application fee. Subject to annual emission-based fees under Env-A 700, see Required Air Permit Fees.
Processing Time
15 days after a registration packet is found to be complete.
Term/Renewal
The General State Permit is readopted every five years. Current GSP-EG will expire April 30, 2013. Seven months prior to the expiration, DES will publish a notice with the intent to reestablish the GSP in a newspaper of general daily statewide circulation, and notify each owner or operator of the outcome of the reestablishment process.
Modifications/Amendments
The provisions in the General State Permit cannot be modified. If the owner or operator of a source chooses to make modifications to the operations that no longer meet the provisions of the General State Permit, they must apply for a State Permit to Operate prior to making changes to their operations. It is the source owner or operator’s responsibility to notify the DES Air Resource Division via letter and submit a new registration package when modifications are made to the existing registration package (e.g., changing equipment, fuel type or usage, etc).
Transferability
Thirty (30) days after any change of the owner or operator, the new owner or operator must submit to the DES Air Resource Division:
1) An updated GSP-1 General Facility Information All Registrations form; and
2) An affidavit to demonstrate title, right, and interest in the property consistent with Env-A 605.02 Proof of Source Ownership or Permissible Use and, if necessary, Env-A 605.03, Proof of Legal Authority (Env-A 600: Statewide Permit System), Sample Ownership Affidavit.
The new owner or operator can also submit an updated GSP-1 form online as described under the Application section above, and mail only the affidavit to the DES Air Resource Division. Once these submittals are received, a letter of approval will be issued or a letter of disapproval will be issued with the reason for disapproval.
Appeals
Any person aggrieved by the final decision may file an appeal to the Air Resources Council within 10 days of the final decision in accordance with RSA 125-C:12 III and Env-AC 200
Status of a Current Application
Air Stationary Sources Search
More Information
You may be required to submit an initial notification for the Federal Stationary Reciprocating Internal Combustion Engines (RICE) rule 40 CFR Part 63 Subpart ZZZZ. Please visit the National Emission Standards for Hazardous Air Pollutants for RICE for more information on the rule. If you are required to provide an initial notification you may use this sample form.
A pre-application meeting may be scheduled to discuss the permit application prior to submission of the application, if requested.
Frequently Asked Questions About New Hampshire’s Air Permit Program (Fact Sheet ARD-17)
General State Permit, Source Category: Internal Combustion Engines Used as Emergency Generators
Air Permitting for Stationary Sources
Contact Us
Barbara Dorfschmidt at barbara.dorfschmidt@des.nh.gov or (603) 271-6796; or Contact Us.
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