Md. Code, Family Law § 10–1A–01

(a) In this subtitle the following words have the meanings indicated.

(b) “Child support order” means:

(1) any support order for a child issued by a tribunal; or

(2) an executed affidavit of support.

(c) “Party” means:

(1) the legal parent of a child;

(2) a caretaker with whom the child resides; or

(3) the Administration when:

(i) it has accepted an assignment of support under § 5–312(b)(2) of the Human Services Article; or

(ii) the child has been placed in the care and custody of the State.

(d) “Tribunal” has the meaning stated in § 10–301(dd) of this title.