Md. Code, Criminal Law § 13–202

Except as otherwise provided in this title, this subtitle applies in the following counties:

(1) Allegany County;

(2) Anne Arundel County;

(3) Baltimore County;

(4) Calvert County;

(5) Caroline County;

(6) Carroll County;

(7) Dorchester County;

(8) Frederick County;

(9) Garrett County;

(10) Howard County;

(11) Prince George’s County;

(12) St. Mary’s County;

(13) Somerset County;

(14) Talbot County; and

(15) Washington County.