Effective date: March 6, 1981 (8:5 Md. R. 473)

Regulation .01B amended effective August 29, 1994 (21:17 Md. R. 1439)

Regulation .02 amended effective June 7, 1993 (20:11 Md. R. 913)

Regulation .03A amended effective June 7, 1993 (20:11 Md. R. 913)

Regulation .04 amended effective June 7, 1993 (20:11 Md. R. 913)

Regulation .05 repealed and new Regulation .05 adopted effective June 7, 1993 (20:11 Md. R. 913)

Regulation .08 adopted effective August 29, 1994 (21:17 Md. R. 1439)

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Chapter revised effective July 11, 2011 (38:14 Md. R. 790)

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Chapter revised effective December 10, 2015 (42:24 Md. R. 1505)

Regulation .02A amended effective August 28, 2017 (44:17 Md. R. 835)

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Chapter revised effective July 2, 2018 (45:13 Md. R. 667)