Tag: 25th anniversary


Drug use among American workers declined 74% over the past 25 years

November 18, 2013

Today marks the 25th anniversary of the Drug-Free Workplace Act and the Quest Diagnostics Drug Testing Index. Drug testing continues to be a deterrent of drug use.


Gain insights from 25 years of drug testing data

November 13, 2013

Our webinar features milestones and lessons learned from an unprecedented analysis of more than 125 million urine drug tests from the past 25 years.


Celebrating 25 years of the Drug Testing Index

October 1, 2013

Quest Diagnostics celebrates 25 years of the Drug Testing Index™ and proudly shares this anniversary timeline, highlighting drug testing milestones.