Md. Code, Health - General § 20–303

(a) The Secretary may adopt rules and regulations to govern the character and location of:

(1) Plumbing;

(2) Drainage;

(3) Water supply;

(4) Offensive trades; and

(5) Disposal of any waste material, including sewage or garbage.

(b) The Secretary may adopt rules and regulations to govern the sanitary condition of:

(1) Streets;

(2) Cesspools;

(3) Outhouses; and

(4) Any sanitary feature connected with any of these.