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technique and chemical principle from that of the <br />alcohol screening test. <br />Controlled In this booklet, the terms "drugs" and "controlled <br />Substances substances" are interchangeable and have the same <br />meaning. Unless otherwise provided, these terms <br />refer to: <br />* marijuana <br />* cocaine <br />* opiates <br />* phencyclidine (PCP) <br />* amphetamines, including methamphetamines. <br />Driver Any person who operates a commercial motor <br />vehicle, (CMV) including: <br />* full -time, regularly employed drivers <br />* casual, intermittent or occasional drivers <br />* leased drivers <br />* independent, owner - operator contractors who <br />are either directly employed by or under <br />contract to an employer or who operate a <br />commercial motor vehicle (CMV) at the <br />direction of or with the consent of an <br />employer. <br />Evidential A device used for alcohol breath testing that has <br />Breath been approved by the National Highway Safety <br />Testing Administration. <br />Device <br />Medical A licensed physician (medical doctor or doctor of <br />Review osteopathy) responsible for receiving laboratory <br />Officer results generated by an employer's drug testing <br />program. The MRO must have knowledge of substance <br />abuse disorders and appropriate medical training <br />to interpret and evaluate an individual's <br />confirmed positive test, medical history, and <br />other relevant biomedical information. <br />Screening In alcohol testing: the initial test to determine <br />Test if a driver has a prohibited concentration of <br />alcohol in his or her system. In controlled <br />substances testing: a screen to eliminate <br />"negative" urine specimens from further <br />consideration. <br />Substance Refers to patterns of substance use that result in <br />Abuse health consequences or impairment in social, <br />psychological and occupational functioning. <br />-2- <br />Page 54 <br />