October 201 I
Permitting Emergency Generators
Emergency generators are utilized as a source of backup power when a regular
electric system fails. Most emergency generators are considered fuel-
driven stationary Reciprocating Internal Combustion Engines (RICE)
The Environmental Protection Agency issued a final rule, 40 CFR
Part 63 Subpart ZZZZ, which requires air permits for some
emergency generators. Under this rule, some entities may be
required to obtain an Air Quality General Permit to Construct
and/or Operate Area Source National Emissions Standards for
Hazardous Air Pollutants (NESHAP) Facilities and Small New Source
Performance Standards (NSPS) Facilities from the Department of
What businesses or sectors utilize emergency generators that are
required to be permitted?
Below are a few examples; however, there are many more sectors affected by this rule
O Municipal governments
O Utility providers
How do I know if I need a permit?
Permit advice and guidelines for permit exempt facility determinations can be found online at
www.deq.state.ok.us/aqdnew/permitting/AdviceDocuments.htm or call the DEQ and request that the
document be e-mailed or mailed to you.
I need a permit - what's next?
Go to www.deq.state.ok.us/aqdnew/resources/forms/IOO-360.pdf or call the DEQ and request that an
application be e-mailed or mailed to you.
For facilities that only need to permit an emergency generator, the permit cost is $400 for the notice of intent
and $ 150 for the operating permit.
If you need assistance in determining if you need a permit or completing your permit application, please
contact the DEQ.
Who can I contact for more information and assistance?
For more information and assistance, contact the DEQ's Customer Assistance Program at
■800-869-1400 or 405-702-0100. Additional information is also available on the DEQ website at
www.deq.state.ok.us or upon request.
DEPAI1MEHI Of EWIIONMENJAI QUALIFY
This publication is issued by the Oklahoma Department of Environmental Quality authorized by Steven AThompson, Executive Director.
Copies have been prepared at a cost of $0.0535 each. Copies have been deposited with the publications clearinghouse of the Oklahoma
Department of Libraries. (N:\fact sheets\csd\emergencygenerators Folder) 10/4/201 I