20.50.03.9999

Administrative History
Effective date: May 22, 1942 (Order No. 38330)

Chapter revised effective May 18, 1960 (Order No. 54348)

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Chapter revised effective June 1, 1965 (Order No. 55819)

Regulation .02 amended effective January 1, 1972 (Order No. 59734); March 12, 2007 (34:5 Md. R. 561)

Regulation .04 amended effective September 21, 2009 (36:19 Md. R. 1438)

Regulation .04H amended effective September 18, 1989 (16:18 Md. R. 2024)