Webwhy drug test does costco use during their pre screening? Is it a urine or saliva test? Webto ensure compliance withthe policy, costco will conduct drug and alcohol testing for unauthorized substances in the following situations: Webrather than risky quick fixes, altogether avoiding illegal and impairing substances proves the only surefire way to pass costco’s drug screening. Yes, costco drug tests for all company positions, but whether a drug test is performed also depends on the job location. Webcostco requires drug screening for all applicants. Every candidate, whether applying for.
