Still others feel that universal testing is warranted. Many unions have negotiated testing agreements and have taken a strong position condemning drug use by union members. A few states have passed laws restricting workplace drug testing, most notably Connecticut, Iowa, Montana, Rhode Island, Maine and Vermont. You should check with your attorney or State Attorneys General regarding the specific laws that apply to your area. NIDA- certified laboratories are listed in the Federal Register on or about the first of every month.
Some states also certify laboratories for drug testing.
It is further recommended that strict procedures should be followed for supervising the chain of custody of samples and the medical review of the results. Every employer in the United States can and should have one. Elements of an Effective Policy. Sample Drug Testing Policy.