What Are The Code Requirements?
DOT 49 CFR 40.43
(c) The collection site must have a secure restroom for urine specimen collection. Access to running water (e.g., sinks or showers) must be restricted during the collection process to prevent any tampering with the specimen.

Need more info? Check out our most frequently asked questions below.
FAQs
What water time out options are available?
There are time out functions for 2 minutes, 5 minutes, and 10 minutes. It is also possible to disable this internal timer; however, this is not recommended.
How is the water shut off in the restrooms?
When the Timed Water Control (TWC) is activated to shut off the water, the connected water solenoid valve is energized, stopping the flow of water.
Is hot water also shut off, or just cold water?
The TWC is highly adaptable to meet the specific needs of any drug testing laboratory, allowing for the shut-off of both hot and cold water lines, or just one as required.