We provide Drug Testing Service to Companies anywhere U.S.A. wanting to keep drugs & alcohol out of their work place. Our Programs are supported by the fastest and most reliable nationally known substance abuse approved laboratories; (SAMHSA) Substance Abuse & Mental Health Services Administration. These SAMHSA certified laboratories offer the most accurate specimen screening, using state of the art technology. Confirmation of non-negative screens are by GCMS; Gas Chromatography Mass Spectrometry, The most reliable and accepted confirmation method. All your results are reviewed by our Medical Review Officer (MRO). Whether your company requires pre-employment, a random program, post-accident, reasonable suspicion, return to duty or follow-up testing,, Mainline offers convenience for all y