Md. Code, Labor and Employment § 4–110

Within 5 days after the National Labor Relations Board or other public or private unit certifies or recognizes a bargaining representative, the bargaining representative shall submit to the Mediation Service a report that contains:

(1) notice of the certification or recognition;

(2) the name and address of the employer;

(3) the total number of employees in the business establishment;

(4) the total number of employees in the bargaining unit; and

(5) if known, the date on which negotiations to establish a collective bargaining agreement are to begin.