Code of Maine Rules › 06 - DEPARTMENT OF ENVIRONMENTAL PROTECTION › 096 - DEPARTMENT OF ENVIRONMENTAL PROTECTION - GENERAL › Chapter 115 - MAJOR AND MINOR SOURCE AIR EMISSION LICENSE REGULATIONS › Section 096-115-1 - Applicability

Current through 2024-29, July 17, 2024
A.
Geographic scope.
This
				regulation shall be effective in all ambient air quality control regions in the
				State.
B.
General
				requirement.
An air emission license is required for the sources or
				emissions units listed below. Once a source requires an air emission license,
				all emissions units which emit regulated pollutants at the source must be
				included in the license, except the following: insignificant activities listed
				in Appendix B of this Chapter; activities which the Department has determined
				in writing on a case-by-case basis to be substantially equivalent to the
				insignificant activities specified in Appendix B of this Chapter; and those
				activities which are clearly trivial. Any person who emits, will emit, or
				causes to be emitted regulated pollutants from any existing or new source may
				not begin actual construction, operate, maintain, or modify the new or existing
				source without an air emission license from the Department, unless the source
				islisted in subsection 1(C) of this Chapter. At such time that a particular
				source or modification becomes a major source or major modification solely by
				virtue of a relaxation in any enforceable limitation which was established
				after August 7, 1980 on the capacity of the source or modification otherwise to
				emit a pollutant, such as a restriction on hours of operation, then the
				requirements of Chapter 115(4)(A) Major Modification or Major Source License
				shall apply to the source or modification as though actual construction had not
				yet begun on the source or modification.
An air emission license is required for the
				  following:
(1) Any source whose
				potential to emit can be determined a Major source and in no case shall a Major
				source be exempted from the obligation to obtain an air emissions
				license.
(2) For a Minor source
				whose facility-wide emissions are generated solely from any one or combination
				of the following:
(a) Fuel-burning equipment
				(or combinations thereof), whose total maximum design heat input is equal to or
				greater than 10.0 million British Thermal Units per hour. Fuel-burning
				equipment, excluding stationary internal combustion engines, less than 1.0
				MMBtu/hr shall not be included in this threshold assessment and stationary
				internal combustion engine less than 0.5 MMBtu/hr shall not be included in this
				threshold assessment.
(b)
				Stationary internal combustion engines (or combinations thereof) whose total
				maximum design heat input is equal to or greater than 5.0 million British
				Thermal Units per hour or a gas/propane fired stationary internal combustion
				engine (or combination thereof) with a total maximum design heat input of equal
				to or greater than 10.0 million British Thermal Units per hour. Units less than
				0.5 MMBtu/hr shall not be included in this threshold assessment.
(c) Total facility general process sources
				whose emissions without consideration of air pollution control apparatus and
				under normal operation are equal to or greater than 100 lb/day of any regulated
				pollutant, except that these numerical limitations may not apply to a source
				which is subject to regulation for the control of hazardous air pollutants
				pursuant to Title 38 MRSA Section585-B, New Source Performance Standards
				promulgated at 40 CFR Part 60, or National Emission Standards for Hazardous Air
				Pollutants (NESHAPS) promulgated at 40 CFR Part 61 and 63.
(d) Total facility general process sources
				whose emissions without consideration of air pollution control apparatus and
				under normal operation are equal to or greater than 10 lb/hr of any regulated
				pollutant, except that these numerical limitations may not apply to a source
				which is subject to regulation for the control of hazardous air pollutants
				pursuant to Title 38 MRSA Section585-B, New Source Performance Standards
				promulgated at 40 CFR Part 60, or National Emission Standards for Hazardous Air
				Pollutants (NESHAPS) promulgated at 40 CFR Part 61 and 63.