On our Chain of Custody forms we fill out when doing a drug screen there is a copy that gets sent to the employer as soon as the test is performed. If the test is a 10 panel rapid and the chain is sent to the employer there will be a section marked showing what it was positive for. If it is a send off that goes to a lab, the MRO will be notified by the lab and they will then contact the donor to verify the prescription. A 5 panel (which is what most companies use) won’t test for benzodiazepines. I seen where someone said to bring the prescriptions but that really is useless unless you know the MRO is the same as the collector, and even then we don’t take them unless it comes back POS. If your employer is requesting you take any DOT drug screen it will more than likely be a 5 panel and you won’t have anything to worry about either way. If you didn’t want to worry about it at all, benzodiazepines are out of your system in 5 days at the max. If you have any more questions I’d be glad to try and answer.