Maryland Statutes
Part VI - Registration, Enforcement, and Modification of Support Order
Section 10-348 - Procedure to Register Child Support Order of Another State for Modification

A party or support enforcement agency seeking to modify, or to modify and enforce, a child support order issued in another state shall register that order in this State in the same manner provided in §§ 10–340 through 10–347 of this subtitle if the order has not been registered. A complaint for modification may be filed at the same time as a request for registration, or later. The pleading must specify the grounds for modification.