§ 127.14. Exemptions.
(a) Plan approval is not required for the construction, modification, reactivation or installation of the following:
(1) Air conditioning or ventilation systems not designed to remove pollutants generated by or released from other sources.
(2) Combustion units rated at 2.5 million or less Btus per hour of heat input.
(3) Combustion units with a rated capacity of less than 10 million Btu per hour of heat input fueled by natural gas supplied by a public utility, liquified petroleum gas or by commercial fuel oils which are No. 2 or lighter—viscosity less than or equal to 5.82 C St—and which meet the sulfur content requirements of § 123.22 (relating to combustion units). Combustion units converting to fuel oils which are No. 3 or heavier—viscosity greater than 5.82 C St—or contain sulfur in excess of the requirements of § 123.22 require approval. For the purpose of this section, commercial fuel oil shall be virgin oil which has no reprocessed, recycled or waste material added.
(4) Sources used in residential premises designed to house four or less families.
(5) Space heaters which heat by direct heat transfer.
(6) Mobile sources.
(7) Laboratory equipment used exclusively for chemical or physical analyses.
(8) Other sources and classes of sources determined to be of minor significance by the Department.
(9) Physical changes to sources when the Department has determined the physical changes to be of minor significance.
(b) When the Department allows de minimis emission increases under § 127.449 (relating to de minimis emission increases), approval is not required for the construction, modification, reactivation or installation of the source creating the de minimis emission increases.
(c) For physical changes requested under subsection (a)(9), the Department will process requests for determinations as follows:
(1) For physical changes of minor significance that would not violate the terms of an operating permit, the act, the Clean Air Act or the regulations adopted under the act or the Clean Air Act and which would not result in emission increases above the emissions allowable in the operating permit or result in an increased ambient air quality impact for an air contaminant and which does not add new equipment, the applicant shall request approval, in writing, from the Department and the change may be made within 7 days of receipt by the Department of a written request unless the Department requests additional information or objects to the change within the 7- day period.
(2) For physical changes of minor significance that would not violate the terms of an operating permit, the act, the Clean Air Act or the regulations thereunder, and which would not result in emission increases above the emissions allowable in the operating permit or result in an increased ambient air quality impact for an air contaminant and which adds new equipment, the applicant shall request approval, in writing, from the Department and the change may be made within 15 days of receipt of the written request unless the Department requests additional information or objects to the change within the 15-day period.
(3) For physical changes of minor significance that would violate the terms of an operating permit, the plan approval exemption may be processed contemporaneously with the minor operating permit modification under § 127.462 (relating to minor operating permit modifications) unless precluded by the Clean Air Act or the regulations thereunder, or the applicant may request approval, in writing, from the Department for the plan approval exemption. The change may not be made until written approval is obtained from the Department and the necessary permit modification procedure has been completed.
(d) The Department may establish a list of sources and physical changes meeting the requirements of subsections (a)(8) and (9). The Department will publish notice of its intention to establish or modify the list in the Pennsylvania Bulletin and will establish a comment period of at least 30 days. After the close of the comment period, the Department will publish the final list or any modifications to the final list in the Pennsylvania Bulletin.
Source The provisions of this § 127.14 adopted September 10, 1971, effective September 11, 1971, 1 Pa.B. 1804; amended March 3, 1972, effective March 20, 1972, 2 Pa.B. 383; amended August 12, 1983, effective August 13, 1983, 13 Pa.B. 2478; amended March 17, 1989, effective March 18, 1989, 19 Pa.B. 1169; amended November 25, 1994, effective November 26, 1994, 24 Pa.B. 5899. Immediately preceding text appears at serial pages (173551) to (173552).
Notes of Decisions Minor Significance
A rock quarry is not a source of minor significance within the meaning of 25 Pa. Code § 127.14 (relating to exemptions) if nothing in the record supports such a determination and the DER has not so determined. Mignatti Construction Co., Inc. v. Environmental Hearing Board, 411 A.2d 860 (Pa. Cmwlth. 1980).
Cross References This section cited in 25 Pa. Code § 127.3 (relating to operational flexibility); 25 Pa. Code § 127.462 (relating to minor operating permit modifications); and 25 Pa. Code § 127.709 (relating to fees for requests for determination).
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