Md. Code, Family Law § 9–307

(a) A person who violates any provision of § 9–304 of this subtitle is guilty of a misdemeanor and on conviction is subject to a fine not exceeding $250 or imprisonment not exceeding 30 days.

(b) If the child is out of the custody of the lawful custodian for not more than 30 days, a person who violates any provision of § 9–305(a) of this subtitle is guilty of a felony and on conviction is subject to a fine not exceeding $1,000 or imprisonment not exceeding 1 year, or both.

(c) If the child is out of the custody of the lawful custodian for more than 30 days, a person who violates any provision of § 9–305(a) of this subtitle is guilty of a felony and on conviction is subject to a fine not exceeding $2,500 or imprisonment not exceeding 3 years, or both.

(d) A person who violates any provision of § 9–305(b) of this subtitle is guilty of a felony and on conviction is subject to a fine not exceeding $5,000 or imprisonment not exceeding 5 years or both.