Maryland Code, Transportation § 23-401

(a) In this subtitle the following words have the meanings indicated.

(b) “Diesel vehicle” means a motor vehicle that:

(c) “Emissions inspector” means a person who is certified by the Department of State Police to perform an emissions test.

(d) “Emissions standard” means a measurement of acceptable diesel emissions.

(e) “Emissions test” means the sampling and measurement of certain components of diesel vehicle exhaust to determine if the diesel vehicle complies with an emissions standard.

(f) “Police officer” means any uniformed law enforcement officer.