Effective date: November 24, 1969 Regulations .01—03, .04C, .05C, and .06 amended effective January 23, 1981 (8:2 Md. R. 110) Chapter revised effective August 6, 1990 (17:15 Md. R. 1854) Regulation .04B amended effective June 25, 2001 (28:12 Md. R. 1103) Regulation .07 adopted effective July 4, 1994 (31:13 Md. R. 1154) Regulation .07 amended effective April 1, 2002 (29:6 Md. R. 566) Regulation .07C amended effective May 29, 2000 (27:10 Md. R. 964) Regulation .08 adopted effective June 17, 1999 (26:12 Md. R. 925) Chapter recodified to new chapter COMAR 14.23.02 effective December 26, 2022 (49:26 Md. R. 1080)