Md. Code Regs. 10.09.67.20
Regulation .20A amended effective February 2, 2004 (31:2 Md. R. 82)
Regulation .20B amended effective February 9, 1998 (25:3 Md. R. 144); February 18, 2002 (29:3 Md. R. 220); April 10, 2006 (33:7 Md. R. 668); December 24, 2012 (39:25 Md. R. 1613);41:8 Md. R. 471, eff. 4/28/2014 ; amended effective 44:4 Md. R. 253, eff. 2/27/2017; amended effective 45:21 Md. R. 973, eff. 10/8/2018; amended effective 45:21 Md. R. 973, eff. 10/22/2018; recodified to 10.67.06.20 effective 46:22 Md. R. 976, eff. 11/1/2019