(a) An employer shall establish a program that provides testing for prohibited drugs and drug metabolites in the following circumstances: pre-employment, post-accident, reasonable suspicion, random, and return to duty/follow-up.

(b) When administering a drug test, an employer shall ensure that the following drugs are tested for:

(1) Marijuana;

(2) Cocaine;

(3) Opioids;

(4) Amphetamines; and

(5) Phencyclidine.

(c) Consumption of these products is prohibited at all times.