Main Stop Testing SVCS

       City of Houston Taxi Cab

  •  Physical & Drug Test
  •  Prove services for Uber, Taxi Cab and Limousine Drivers

Alcohol Testing & Physicals

Dna Paternity Testing in Houston

DOT Testing

  • Breath Alcohol – which entails blowing into a alcohol machine
  • Saliva – which entails taking saliva from the mouth and getting a instant result
  • ETG Alcohol Testing- Entails taking a urine sample and determines the presence of urine from 30-90 days used for court testing.

DOT Drug Testing

  • Regulated 5 panel test includes Marijiana, Cocaine, Opiates, Amphentamines,and Phencyclidine (PCP)
  • Medical Reviews are included by DOT Regulations 
  • Required test for FAA-FMCSA-FRA-FTA-PHMSA-USCG
  • Test Reasons include: Pre-Employment/ Random/ Reasonable Suspicion/ Cause/ Post-Accident/ Return To Duty/ Follow-Up

Onsite Testing

Drug Testing

Consulting Services                                        Background Checks & Assessment Testing

Main Stop Testing SVCS Drug Testing provides full service onsite drug testing, alcohol, hair follicle drug test and DNA Paternity testing in Houston. Our laboratories deliver fast and accurate results within 24 hours for some tests.

Onsite Collections for Pre-Employment, Random, Post-Accident, and Follow ups.

NON-DOT Drug Testing

  • Non Regulated test which includes test panels from 5-10 which included: Codiene, Marijuana, Methadone, Methamphetamine, Methaqualone, Morphine, Nordiazepam, Opiates, Phencyclidine, and Propoxyphene
  • Medical Reviews are optional depending on the circumstances of the test.
  • Test Reasons include Pre-Employment/Ramdoms/Reasonable Suspicion-Cause/Post-Accident/Return to Duty/Follow-Up
  • Instant Testing – Rapid result test ( 4Min. Results) used for Court/School/Personal/Employment
  • Hair Testing- Cutting of hair from head, Under Arms, Chest, Or Eye Brows
  • Saliva Testing – which test saliva from mouth for instant result or lab testing
  • Unknown Substances – Pills/Powers/Liquids/Substances

12401 S. Post Oak, Ste 235, Houston TX 77045

Phone: 713.551.8743 | Fax: 713.551.8744


  • Notary Public                                                                                                                 Criminal Records
  • Administrating Oath or Affirmation                                                                           DMV Records                         
  • Certificates under Oath                                                                                                Verifications
  • Swearing a witness depositions                                                                                  Credit Bureau Reporting
  • Protesting - bills, note of non-accept or non-payment
  • All other notary documents
  • Drug Policy Reviews and Law Regulations
  • Random Selection Process
  • Regulatory compliance Assistance
  • Management of Outsourced Services – MRO/LABS/DNA TESTING