Maryland Labor and Employment Section 9-708
§ 9-708.
  (a)   This section does not apply to:
    (1)   a partner whom a partnership elects to be a covered employee under § 9-219 of this title;
    (2)   a sole proprietor who elects to be a covered employee under § 9-227 of this title; or
    (3)   an officer of a corporation who:
      (i)   is a covered employee under § 9-206(a) of this title; and
      (ii)   is eligible but does not elect to be exempt from coverage under § 9-206(b) of this title.
  (b)   In the case of an accidental personal injury, the claim limitation period in § 9-709(b)(3) of this subtitle does not begin to run until the employer files a report with the Commission in accordance with § 9-707 of this subtitle if:
    (1)   the employer has been notified in accordance with § 9-704 of this subtitle; or
    (2)   the employer or a designated representative of the employer at the place where the accidental personal injury occurred knows about the disability or death of the covered employee.