Md. Code, Fam. Law § 10-134

(a) On motion of the obligor or the recipient that may be filed on a form which shall be prepared by the court, the court shall terminate the withholding if: (1) the support obligation is terminated and the total arrearages are paid; (2) all of the parties join in a motion for termination of the withholding; or (3) within 60 days of the withholding order being served, the court finds: (i) no history of child support arrearages; and (ii) the arrearage which gave rise to the withholding order was the result of a bona fide medical emergency involving hospitalization of the obligor or the death of the obligor’s parents, spouse, children, or stepchildren. (b) The Administration shall notify the employer to terminate the withholding without the necessity of a further order when: (1) the support obligation is fulfilled; and (2) no arrearage exists.