The Patapsco River encompasses all the waters of the Patapsco River and its tributaries westerly of a line beginning at North Point, at or near Lat. 39° 11.72’ N., Long. 76° 26.52’ W., then running 172° (True) to Bodkin Point, at or near Lat. 39° 7.95’ N., Long. 76° 25.83’ W.

Authority: Natural Resources Article, §§8-703 and 8-704, Annotated Code of Maryland

Effective date: February 3, 1992 (19:2 Md. R. 153)

Regulation .01 amended effective March 17, 2014 (41:5 Md. R. 342)

Regulation .02B amended effective March 17, 2014 (41:5 Md. R. 342)

Regulation .03 amended effective March 17, 2014 (41:5 Md. R. 342)

Regulation .03A amended effective June 6, 2000 (27:12 Md. R. 1138)

Regulation .03B amended effective May 24, 1993 (20:10 Md. R. 850); April 11, 2005 (32:7 Md. R. 678)

Regulation .03C amended effective October 8, 2007 (34:20 Md. R. 1736); March 9, 2009 (36:5 Md. R. 422); October 29, 2012 (39:21 Md. R. 1378)

Regulation .03D amended effective May 24, 1993 (20:10 Md. R. 850)

Regulation .03E adopted effective June 5, 1995 (22:11 Md. R. 819)

Regulation .03F adopted effective June 26, 2000 (27:12 Md. R. 1138)

Regulation .04 amended effective March 17, 2014 (41:5 Md. R. 342)

Regulation .04B amended as an emergency provision effective April 7, 1995 (22:9 Md. R. 641); emergency status extended at 22:20 Md. R. 1539; emergency status expired April 7, 1996

Regulation .04B amended effective June 3, 1996 (23:11 Md. R. 809); March 9, 2009 (36:5 Md. R. 422)

Regulation .05 adopted effective August 4, 2025 (52:15 Md. R. 811)