Maryland Statutes
Subtitle 12 - Parental Leave Act
Section 3-1203 - Notice Requirements

(a)    Except as provided in subsection (b) of this section, an employer may require an eligible employee to give the employer written notice of the employee’s intention to take parental leave at least 30 days before commencing parental leave.
    (b)    An eligible employee may begin taking parental leave without prior notice following a premature birth, unexpected adoption, or unexpected foster placement.