Prevalence of Pre- and Post-Employment Drug Testing of Workers in the US
"Drug and alcohol testing continues to be an important part of screening both before and after hire. Fifty-eight percent of respondents indicated their organization conducted drug and/or alcohol screening, and this number jumped to 62% for respondents with organizations of more than 4,000 employees.
"The vast majority of organizations (95%) that indicated they conducted drug testing, perform urine tests. Breath alcohol tests (23%), hair (9%), saliva (8%), and blood testing (6%) were also conducted, but much less frequently.
"Fifty percent of the organizations that conducted drug and alcohol screening used an electronic Chain-of-Custody (eCOC) form to track results with 10% indicating they would adopt the form if it became acceptable by federal regulation."
"Employment Screening Benchmark Report, 2014 Edition," HireRight, Inc., March 2014, pp. 21-22.