Md. Code, Health - General § 17–103

(a) Except as otherwise provided, the Secretary may set a fee for any service of a public health and clinical laboratory in accordance with § 2–104 of this article.

(b) Except as provided in subsection (c) of this section, the Secretary may not impose any fee for any service of a public health and clinical laboratory in connection with:

(1) An examination or analysis of a water supply;

(2) An examination or analysis of milk; or

(3) An inquiry that any health officer or physician makes about a communicable disease.

(c) Subsection (b)(2) of this section does not apply to the production of farmstead cheese.