Michigan Administrative Code › Department - Environmental Quality › Air Quality Division › Part 1 - GENERAL PROVISIONS › Section R. 336.1101 - Definitions; A

Current through Vol. 24-12, July 15, 2024
Rule 101. As used in these rules:
(a) "Act" means 1994 PA 451, MCL
				324.5501 to
				324.5542.
(b) "Actual emissions" means the average
				rate, in tons per year, at which the process or process equipment actually
				emitted the air contaminant during the preceding 2-year period and which was
				representative of the normal operation of the process or process equipment. A
				different time period may be used if the time period can be demonstrated to be
				more representative of normal operation. Actual emissions shall be calculated
				using the process's or process equipment's actual operating hours, production
				rates, and types of materials processed, stored, or combusted during the
				selected time period. The department may presume that the actual emissions for
				a process or process equipment shall equal the allowable emissions for such
				process or process equipment if the allowable emissions are identified in the
				demonstration for an approved state implementation plan. For any process or
				process equipment that has not begun normal operations, actual emissions shall
				equal the allowable emissions. The term "actual emissions" is not applicable in
				parts 6 and 7 of these rules.
(c)
				"Adhesion prime" means a coating that is applied to a polyolefin part to
				promote the adhesion of a subsequent coating. An adhesion prime is clearly
				identified as an adhesion prime or adhesion promoter on its accompanying
				material safety data sheet.
(d)
				"Affected states" means all states that are contiguous to the state of Michigan
				and whose air quality may be affected by a proposed operating permit, operating
				permit modification, or operating permit renewal or that are within 50 miles of
				the stationary source for which a permit action is proposed.
(e) "Air-cleaning device" means air pollution
				control equipment.
(f) "Air
				contaminant" means a dust, fume, gas, mist, odor, smoke, vapor, or any
				combination thereof.
(g) "Air-dried
				coating" means a coating that is dried by the use of air or forced warm air at
				temperatures up to 90 degrees Celsius (194 degrees Fahrenheit).
(h) "Air pollution" has the same meaning as
				defined in section 5501 of the act.
(i) "Air pollution control equipment" means
				any method, process, or equipment that removes, reduces, or renders less
				noxious air contaminants discharged into the atmosphere.
(j) "Air quality standard" means the
				concentration and duration of an air contaminant specified by the department or
				by the national ambient air quality standards as contained in the provisions of
				40 C.F.R. part 50, adopted by reference in
				R
				336.1902, whichever is more restrictive, as the
				maximum acceptable concentration and duration of that contaminant in the
				ambient air.
(k) "Allowable
				emissions" means the emission rate calculated using the maximum rated capacity
				of the process or process equipment, unless there are legally enforceable
				limits that restrict the operating rate or the hours of operation, or both, and
				the most stringent of the following:
(i) Any
				applicable standards pursuant to the clean air act.
(ii) Any applicable emission limit specified
				in these rules, including a limit that has a future compliance date.
(iii) Any applicable emission rate specified
				as a legally enforceable permit condition or voluntary agreement, performance
				contract, stipulation, or order of the department, including a rate that has a
				future compliance date.