Md. Code, Public Safety § 3-404
§3–404.
(a) The chief railroad police officer of a railroad company shall:
(1) submit to the Secretary under oath an application for appointment of each railroad police officer in a manner and format designated by the Secretary; and
(2) pay to the Secretary the application fee set by the Secretary in a method approved by the Secretary.
(b) The application fee is nonrefundable.