The Patuxent River encompasses all the waters of the Patuxent River and its tributaries westerly of a line beginning at a point, at or near Lat. 38° 19.15’ N., Long. 76° 25.27’ W., then running 120° (True) to a point, at or near Lat. 38° 18.57’ N., Long. 76° 23.97’ 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 .02 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 March 14, 1994 (21:5 Md. R. 403)

Regulation .03B amended effective April 13, 2026 (53:7 Md. R. 326)

Regulation .03D amended effective May 27, 2002 (29:10 Md. R. 825)

Regulation .03E amended effective March 30, 1992 (19:6 Md. R. 672)

Regulation .03F adopted effective March 14, 1994 (21:5 Md. R. 403)

Regulation .03G adopted effective May 27, 2002 (29:10 Md. R. 825)

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

Regulation .04A amended and F adopted effective June 5, 1995 (22:11 Md. R. 820)

Regulation .04A, G adopted effective May 18, 1998 (25:10 Md. R. 745)

Regulation .04C, D amended effective August 19, 2002 (29:16 Md. R. 1287)

Regulation .04E amended effective August 22, 2011 (38:17 Md. R. 1012)

Regulation .04H adopted effective August 2, 2004 (31:15 Md. R. 1185)