Versions of See prior versions of a law on LawServer 2024 49 CFR 40.181 – What does the second laboratory do with the split specimen when it is tested to reconfirm a substituted test result? 2023 49 CFR 40.181 – What does the second laboratory do with the split specimen when it is tested to reconfirm a substituted test result? 2022 49 CFR 40.181 – What does the second laboratory do with the split specimen when it is tested to reconfirm a substituted test result? 2021 49 CFR 40.181 – What does the second laboratory do with the split specimen when it is tested to reconfirm a substituted test result? 2020 49 CFR 40.181 – What does the second laboratory do with the split specimen when it is tested to reconfirm a substituted test result? 2019 49 CFR 40.181 – What does the second laboratory do with the split specimen when it is tested to reconfirm a substituted test result? 2016 49 CFR 40.181 – What does the second laboratory do with the split specimen when it is tested to reconfirm a substituted test result? 2015 49 CFR 40.181 – What does the second laboratory do with the split specimen when it is tested to reconfirm a substituted test result? 2014 49 CFR 40.181 – What does the second laboratory do with the split specimen when it is tested to reconfirm a substituted test result?