USTR has principal responsibility for administering U.S. trade agreements. This involves monitoring our trading partners' implementation of trade agreements with the United States, enforcing America's rights under those agreements, and negotiating and signing trade agreements that advance the President's trade policy.
A urine drug test, also known as a urine drug screen or a UDS, is quick and painless. It tests your urine for the presence of certain illegal drugs and prescription medications. The urine drug test usually screens for alcohol, amphetamines, benzodiazepines, marijuana, cocaine, PCP, and opioids (narcotics).
Urine Drug Testing. Urine drug testing (UDT) is widely used for testing for opioids and illicit drugs. There are two types of UDT: a screening test and a confirmatory test. The screening test uses an immunoassay to look for the parent drug and/or metabolite.