2024 49 CFR 40.87 – What validity tests must laboratories conduct on primary urine specimens?

2023 49 CFR 40.87 – What are the cutoff concentrations for drug tests?

2022 49 CFR 40.87 – What are the cutoff concentrations for drug tests?

2021 49 CFR 40.87 – What are the cutoff concentrations for drug tests?

2020 49 CFR 40.87 – What are the cutoff concentrations for drug tests?

2019 49 CFR 40.87 – What are the cutoff concentrations for drug tests?

2016 49 CFR 40.87 – What are the cutoff concentrations for drug tests?

2015 49 CFR 40.87 – What are the cutoff concentrations for drug tests?

2014 49 CFR 40.87 – What are the cutoff concentrations for drug tests?