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§40.83. How do laboratories process incoming specimens? — Inbound Citations

49 C.F.R. § 40.83

Cited by 5 regulations in release 2026-08-27.

Citations to 49 C.F.R. § 40.83 as a whole

  • (c) As the laboratory that tested the primary specimen, you are not authorized to open the split specimen under any circumstances (except when the split specimen is redesignated as provided in § 40.83).
  • (a) As the MRO, when the laboratory discovers a “fatal flaw” during its processing of incoming specimens (see § 40.83), the laboratory will report to you that the specimen has been “Rejected for Testing” (with the reason stated). You must always cancel such a test.
  • (a) As the MRO, when a laboratory discovers a “correctable flaw” during its processing of incoming specimens (see § 40.83), the laboratory will attempt to correct it. If the laboratory is unsuccessful in this attempt, it will report to you that the specimen has been “Rejected for Testing” (with the reason stated).

Citations to §40.83(g)

  • (d) If a test is cancelled for a correctible flaw (e.g., § 40.203 or § 40.205), only the MRO who cancelled the test can reverse the cancellation and must do so within 60 days of the cancellation. After 60 days, the MRO who cancelled the test cannot reverse the cancellation without the permission of ODAPC. For example, if an MRO cancels a test because the MRO did not receive a copy of the CCF, but later receives a copy of the CCF, the MRO may reverse the decision to cancel the test within 60 days. After 60 days, the MRO must contact ODAPC for permission to reverse the cancellation. An MRO must not reverse the cancellation of a test that the laboratory has reported as rejected for testing, as described in § 40.83(g). A laboratory is not authorized to reverse a cancellation due to a fatal flaw, as described in § 40.199.

Citations to §40.83(h)