§40.181. What does the second laboratory do with the split specimen when it is tested to reconfirm a substituted test result? — Inbound Citations

(B) Except when the request is for a test of the primary specimen and is being made to the laboratory that tested the primary specimen, follow the procedures of §§ 40.153, 40.171, 40.173, 40.179, 40.181, and 40.185, as appropriate.