1. A. Definitions. In this regulation, the following terms have the meanings indicated:

   1. (1) “Component” means equipment which has the potential to leak VOC, including process equipment, storage tanks, pumps, compressors, valves, flanges and other pipeline fittings, pressure relief valves, process drains, and open-ended pipes.
   2. (2) “Leak” means an unintended liquid or vapor release of VOC from a component into the ambient air or into a building.
2. B. Applicability. A person subject to any VOC emission standard or limitation established in this chapter and not otherwise subject to more specific VOC leak requirements of another regulation is subject to the requirements of this regulation.

3. C. General Requirements. A person subject to this regulation shall comply with all of the following requirements:

   1. (1) Visually inspect all components on the premises for leaks at least once each calendar month.
   2. (2) Tag any leak immediately so that the tag is clearly visible. The tag shall be made of a material that will withstand any weather or corrosive conditions to which it may be normally exposed. The tag shall bear an identification number, the date the leak was discovered, and the name of the person who discovered the leak. The tag shall remain in place until the leak has been repaired.
   3. (3) Take immediate action to repair all observed VOC leaks that can be repaired within 48 hours.
   4. (4) Repair all other leaking components not later than 15 days after the leak is discovered. If a replacement part is needed, the part shall be ordered within 3 days after discovery of the leak, and the leak shall be repaired within 48 hours after receiving the part.
   5. (5) Maintain a supply of components or component parts that are recognized by the source to wear or corrode, or that otherwise need to be routinely replaced, such as seals, gaskets, packing, and pipe fittings.
   6. (6) Maintain a log that includes the name of the person conducting the inspection and the date on which leak inspections are made, the findings of the inspection, and a list of leaks by tag identification number. The log shall be made available to the Department upon request. Leak records shall be maintained for a period of not less than 2 years from the date of their occurrence.
4. D. Exceptions. Components that cannot be repaired as required in this regulation because they are inaccessible, or that cannot be repaired during operation of the source, shall be identified in the log and included within the source's maintenance schedule for repair during the next source shutdown.

Authority: Environment Article, §§1-101, 1-404, 2-101—2-103, 2-301—2-303, 10-102, and 10-103, Annotated Code of Maryland

Effective date: July 18, 1980 (7:12 Md. R. 1148)

Regulations .01C and .10 amended effective June 8, 1981 (8:9 Md. R. 800)

Regulations .12—.14 adopted effective June 8, 1981 (8:9 Md. R. 800)

Regulations .01—.14 repealed effective August 16, 1983 (10:14 Md. R. 1262)

Regulations .01—.14 adopted effective August 16, 1983 (10:14 Md. R. 1262)

Regulation .01B amended effective August 10, 1987 (14:14 Md. R. 1572)

Regulation .02B amended effective August 19, 1984 (11:14 Md. R. 1250)

Regulation .02B—F amended effective August 10, 1987 (14:14 Md. R. 1572)

Regulation .03 repealed and new Regulation .03 adopted effective August 10, 1987 (14:14 Md. R. 1572)

Regulation .10B amended effective August 10, 1987 (14:14 Md. R. 1572)

Regulation .13 amended effective August 10, 1987 (14:14 Md. R. 1572)

Regulation .15 adopted effective August 10, 1987 (14:14 Md. R. 1572)

For the history of this subtitle before June 18, 1980, see the Administrative History of COMAR 26.11.01.

Chapter recodified from COMAR 10.18.21 to COMAR 26.11.19

Regulation .01B amended effective May 8, 1991 (18:6 Md. R. 688); April 26, 1993 (20:8 Md. R. 726); May 8, 1995 (22:9 Md. R. 653); June 5, 1995 (22:11 Md. R. 823)

Regulation .02 amended effective May 8, 1991 (18:6 Md. R. 688); April 26, 1993 (20:8 Md. R. 726)

Regulation .02A amended effective May 8, 1995 (22:9 Md. R. 653)

Regulation .02B amended effective May 4, 1998 (25:9 Md. R. 680)

Regulation .02D amended effective August 19, 1991 (18:16 Md. R. 1813); February 17, 1992 (19:3 Md. R. 306); March 5, 2012 (39:4 Md. R. 339)

Regulation .02E amended effective March 5, 2012 (39:4 Md. R. 339)

Regulation .02G amended effective May 8, 1995 (22:9 Md. R. 653); ; March 5, 2012 (39:4 Md. R. 339)

Regulation .02I amended effective December 10, 2001 (28:24 Md. R. 2131)

Regulation .03 repealed and new Regulation .03 adopted effective September 22, 1997 (24:19 Md. R. 1344)

Regulation .06 amended effective November 1, 2010 (37:22 Md. R. 1555)

Regulation .07 amended effective May 8, 1991 (18:6 Md. R. 688); June 5, 1995 (22:11 Md. R. 823); August 24, 1998 (25:17 Md. R. 1362); effective April 19, 2010 (37:8 Md. R. 622)

Regulation .07A amended adopted effective August 19, 1991 (18:16 Md. R. 1813); February 15, 1993 (20:3 Md. R. 260)

Regulation .07D adopted effective August 19, 1991 (18:16 Md. R. 1813)

Regulation .07F adopted effective September 8, 1997 (24:18 Md. R. 1288)

Regulation .07-1 adopted effective June 15, 1998 (25:12 Md. R. 949)

Regulation .08 amended effective May 26, 2014 (41:10 Md. R. 566)

Regulation .09B amended effective February 17, 1992 (19:3 Md. R. 306)

Regulation .09 repealed and new Regulation .09 adopted effective June 5, 1995 (22:11 Md. R. 823)

Regulation .09-1 adopted effective April 19, 2010 (37:8 Md. R. 622)

Regulation .10 amended effective May 8, 1991 (18:6 Md. R. 688); June 5, 1995 (22:11 Md. R. 823); adopted effective April 19, 2010 (37:8 Md. R. 622)

Regulation .10C amended effective April 26, 1993 (20:8 Md. R. 726)

Regulation .10-1 adopted effective April 19, 2010 (37:8 Md. R. 622)

Regulation .11 adopted effective May 8, 1991 (18:6 Md. R. 688)

Regulation .11 amended effective June 5, 1995 (22:11 Md. R. 823); October 31, 2011 (38:22 Md R. 1347)

Regulation .11B and C amended effective August 19, 1991 (18:16 Md. R. 1813)

Regulation .12 amended effective June 20, 1989 (16:9 Md. R. 995); July 16, 1990 (17:11 Md. R. 1344); September 22, 1997 (24:19 Md. R. 1344)

Regulation .12F amended effective August 19, 1991 (18:16 Md. R. 1813); February 17, 1992 (19:3 Md. R. 306)

Regulation .13 amended effective May 16, 2011 (38:10 Md. R. 617)

Regulation .13B amended effective May 8, 1991 (18:6 Md. R. 688); September 22, 1997 (24:19 Md. R. 1344); August 24, 1998 (25:17 Md. R. 1362)

Regulation .13B amended effective May 8, 1991 (18:6 Md. R. 688)

Regulation .13-1 adopted effective September 22, 1997 (24:19 Md. R. 1344)

Regulation .13-1 repealed and new Regulation .13-1 adopted effective October 2, 2000 (27:19 Md. R. 1732)

Regulation .13-1 amended effective October 15, 2001 (28:20 Md. R. 1783)

Regulation .13-2 adopted effective August 24, 1998 (25:17 Md. R. 1362)

Regulation .13-3 adopted effective June 29, 1998 (25:13 Md. R. 997)

Regulation .14B amended effective May 8, 1991 (18:6 Md. R. 688)

Regulation .15 amended effective May 8, 1991 (18:6 Md. R. 688)

Regulation .15A amended effective March 22, 1999 (26:6 Md. R. 488); adopted effective April 19, 2010 (37:8 Md. R. 623)

Regulation .15C amended effective February 15, 1993 (20:3 Md. R. 260); May 4, 1998 (25:9 Md. R. 680); adopted effective April 19, 2010 (37:8 Md. R. 623)

Regulation .16 adopted effective August 19, 1991 (18:16 Md. R. 1813)

Regulation .17 adopted effective November 7, 1994 (21:22 Md. R. 1879)

Regulation .17 amended effective June 21, 2004 (31:12 Md. R. 914); September 12, 2005 (32:18 Md. R. 1522)

Regulation .17C, D amended effective June 5, 1995 (22:11 Md. R. 823)

Regulation .18 adopted effective November 7, 1994 (21:22 Md. R. 1879)

Regulation .18 amended effective August 24, 1998 (25:17 Md. R. 1362); June 10, 2002 (29:11 Md. R. 890)

Regulation .18A, C, E, I amended effective June 5, 1995 (22:11 Md. R. 824)

Regulation .19 adopted effective July 3, 1995 (22:13 Md. R. 970)

Regulation .19 repealed and new Regulation .19 adopted effective October 2, 2000 (27:19 Md. R. 1732)

Regulation .20 adopted effective March 9, 1998 (25:5 Md. R. 371)

Regulation .20 amended effective March 22, 1999 (26:6 Md. R. 488)

Regulation .20 repealed effective June 12, 2023 (50:11 Md. R. 446)

Regulation .21 adopted effective July 3, 1995 (22:13 Md. R. 970)

Regulation .22 adopted effective August 11, 1997 (24:16 Md. R. 1161)

Regulation .23 adopted effective May 22, 1995 (22:10 Md. R. 709)

Regulation .23 repealed and new Regulation .23 adopted effective April 16, 2012 (39:7 Md. R. 496)

Regulation .24 adopted effective August 11, 1997 (24:16 Md. R. 1161)

Regulation .25 adopted effective August 11, 1997 (24:16 Md. R. 1161)

Regulation .26 adopted effective August 11, 1997 (24:16 Md. R. 1162)

Regulation .26A amended effective September 28, 2015 (42:19 Md. R. 1229)

Regulation .26-1 adopted effective September 28, 2015 (42:19 Md. R. 1229)

Regulation .27 adopted effective October 20, 1997 (24:21 Md. R. 1453)

Regulation .27-1 adopted effective November 12, 2012 (39:22 Md. R. 1430)

Regulation .28 adopted effective October 2, 2000 (27:19 Md. R. 1732)

Regulation .29 adopted effective October 2, 2000 (27:19 Md. R. 1732)

Regulation .29 amended effective October 15, 2001 (28:20 Md. R. 1783)

Regulation .30 adopted effective January 8, 2001 (27:26 Md. R. 2359)

Regulation .30 amended effective December 10, 2001 (28:24 Md. R. 2131); November 11, 2002 (29:22 Md. R. 1724)

Regulation .30 amended as an emergency provision effective January 11, 2008 (35:3 Md. R. 287); amended permanently effective April 21, 2008 (35:8 Md. R. 809)

Regulation .31 adopted effective June 5, 2006 (33:11 Md. R. 951)

Regulation .32 adopted effective April 21, 2008 (35:8 Md. R. 809); adopted effective April 19, 2010 (37:8 Md. R. 623)

Regulation .33 adopted effective April 19, 2010 (37:8 Md. R. 623)