M-F: 8:30am-5:00pm
Saturday:Closed
Sunday: Closed
Holidays: By Appointment:Closed Thanksgiving,Christmas Eve and Day, New Years Eve and Day.

Conveniently located behind Historical La Hacienda
Ranch Restaurant on Preston and JohnHickman Pkwy.

• Walk-ins Welcome!
• In-and-Out in about 15 minutes
• We do not close for lunch
• Weekends: By Appointment
• Holidays: By Appointment
• On-Site and Mobile Testing Available
• Student Random Testing Programs
• Same Day Results on many tests
• Court Admissible Results