A complete permit application for an oil & gas facility must include all applicable elements on Form APCD-100.
Reciprocating Internal Combustion Engine APEN (Form APCD-201)
Use an APEN to apply for a new permit; request a modification to an existing permit; complete a routine (five-year) renewal for an existing permitted source or report changes in emissions, production or equipment.
Alternate Operating Scenario (AOS)
Report a permanent engine replacement for your RICE.
General Permit
General Permits offer a streamlined approach to air emissions permitting. GP02 is only available for oil & gas industry sources. Review the general permit GP02 to determine if your engine meets the applicability requirements.
GP02: Natural Gas Fired Reciprocating Internal Combustion Engine
- PS Memo 11-03
Permitting Guidance for Natural Gas Fired RICE GP02.
Operating and Maintenance Plan for natural gas-fired RICE at an oil & gas facility (Form APCD-301)
An O&M plan is required for all process units with emission controls at a synthetic minor or major stationary source. Visit the Oil and gas Operating & Maintenance Plan forms page for guidance and more information.
Calculate your natural gas engine emissions
This link will download the Emission Calculation & Regulatory Analysis Workbook.
Guidance for natural gas engine permits
- APEN and Permitting Requirements
For internal combustion engines in Colorado. - PS Memo 11-01
Statewide Reciprocating Internal Combustion Engine (RICE) Requirements. - PS Memo 11-03
Permitting Guidance for Oil & Gas Industry - Natural Gas Fired RICE General Permit GP02. - PS Memo 95-09
Emergency Generators. - Step-by-step
Reporting your air emissions and applying for air permits.