Md. Code, Labor and Employment § 9–702

Absent substantial evidence to the contrary, in a proceeding for the enforcement of a claim under this title, it is presumed that:

(1) the claim comes within this title;

(2) sufficient notice was given to the employer; and

(3) the employer or its insurer was not prejudiced by a failure to file a claim for an accidental personal injury within 60 days after the date of the accidental personal injury.