Maryland Code, Business Occupations and Professions § 6.5-306.1

(1) a Grade 1 stationary engineer license if the individual lawfully provided stationary engineering services in the State in accordance with § 6.5-302(e) of this subtitle for 5 or more consecutive years immediately prior to the date of application;

(2) a Grade 2 stationary engineer license if the individual lawfully provided stationary engineering services in the State in accordance with § 6.5-302(d) of this subtitle for 3 or more consecutive years immediately prior to the date of application;

(3) a Grade 3 stationary engineer license if the individual lawfully provided stationary engineering services in the State in accordance with § 6.5-302(c) of this subtitle for 2 or more consecutive years immediately prior to the date of application; or

(4) a Grade 4 stationary engineer license if the individual lawfully provided stationary engineering services in the State in accordance with § 6.5-302(b) of this subtitle for 6 or more consecutive months immediately prior to the date of application.

(1) an examination application on the form that the Board provides;

(2) an application fee set by the Board;

(3) proof of eligibility for the applicable application; and

(4) an application for the applicable license in accordance with the provisions of this title.