Maryland Labor and Employment Section 9-221
§ 9-221.
  (a)   A prisoner is a covered employee while the prisoner is:
    (1)   working for a board of county commissioners, a county council, or a county roads board if:
      (i)   the county pays the prisoner a wage or stipulated sum; and
      (ii)   the prisoner sustains permanent partial or permanent total disability or dies, as a result of an accidental personal injury; or
    (2)   engaged in work while under the supervision of Maryland Correctional Enterprises in the Federal Prison Industry Enhancement Program as provided in § 10-308(d) of the Correctional Services Article.
  (b)   In Allegany, Anne Arundel, Charles, Montgomery, Washington, and Wicomico counties, payment of a stipend or other money into an account that a correctional institution administers for a prisoner does not constitute payment of a wage or stipulated sum under subsection (a)(1)(i) of this section.