What is the difference which way they test? As CDL holders we still are not supposed to indulge in drugs. Therefore I dont see what the difference is whether we are required to submit a urine or hair sample.
Hair testing shows a history of drug use while urinalysis shows recency of drug use. Under federal regulations, only urinalysis is mandated, any other test(s) have to be done in addition to the required tests. Hair testing is being done post-offer on a prospective employee, and that's after the standard pre-employment drug screen which is required. It is also more expensive, so yes, drug testing labs are all over this.
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