1. A. The primary goals of the State and local stormwater management programs are to maintain after development, as nearly as possible, the predevelopment runoff characteristics, and to reduce stream channel erosion, pollution, siltation and sedimentation, and local flooding by implementing environmental site design to the maximum extent practicable and using appropriate structural best management practices only when necessary.
2. B. These regulations for stormwater management apply to the development or redevelopment of land for residential, commercial, industrial, or institutional use, but do not apply to agricultural land management practices. This chapter specifies the minimum content of county and municipal ordinances, responsibilities of the Administration regarding the review of the county and municipal stormwater management programs, and approval of State-constructed projects for stormwater management by the Department of the Environment.
3. C. This chapter applies to all new development and redevelopment projects that do not have final approval for erosion and sediment control and stormwater management plans by May 4, 2010.
4. D. The provisions of these regulations may not be construed to affect the requirements for a project located in an Intensely Developed Area of the Chesapeake and Atlantic Coastal Bays Critical Area to comply with the 10 percent Pollution Reduction Requirement under COMAR 27.01.02.03D(3).

Authority: Environment Article, §§4-201 and 4-203, Annotated Code of Maryland

Effective date: July 18, 1983 (10:14 Md. R. 1260)

Regulations .03A, and .08A, C, and G amended effective June 4, 1984 (11:11 Md. R. 962)

Chapter recodified from COMAR 08.05.05 to COMAR 26.09.02

Chapter recodified from COMAR 26.09.02 to COMAR 26.17.02, June 1996

Chapter revised effective October 2, 2000 (27:19 Md. R. 1733)

Regulation .01 amended effective May 4, 2009 (36:9 Md. R. 652)

Regulation .01D adopted as an emergency provision effective April 7, 2010 (37:10 Md. R. 719); adopted permanently effective July 26, 2010 (37:15 Md. R. 1001)

Regulation .01-1B amended effective May 4, 2009 (36:9 Md. R. 652)

Regulation .01-2 adopted as an emergency provision effective April 7, 2010 (37:10 Md. R. 719); adopted permanently effective July 26, 2010 (37:15 Md. R. 1001)

Regulation .02B amended effective May 4, 2009 (36:9 Md. R. 652)

Regulation .03 amended effective May 4, 2009 (36:9 Md. R. 652)

Regulation .04B amended effective May 4, 2009 (36:9 Md. R. 652)

Regulation .05 amended effective May 4, 2009 (36:9 Md. R. 652)

Regulation .05C, D amended as an emergency provision effective April 7, 2010 (37:10 Md. R. 719); amended permanently effective July 26, 2010 (37:15 Md. R. 1001)

Regulation .06A, B amended effective May 4, 2009 (36:9 Md. R. 652)

Regulation .08 amended effective May 4, 2009 (36:9 Md. R. 652); July 29, 2019 (46:15 Md. R. 656)

Regulation .09E amended effective May 4, 2009 (36:9 Md. R. 652)

Regulation .09F adopted effective July 29, 2019 (46:15 Md. R. 656)

Regulation .10 amended effective May 4, 2009 (36:9 Md. R. 652)

Regulation .11A, B amended effective May 4, 2009 (36:9 Md. R. 652)