If the primary laboratory must redesignate bottle B for bottle A, can the laboratory test the specimen if only 15 mL of urine is present in the redesignated bottle A?

• The Department permits specimen redesignation only in limited circumstances – one such occurrence would be if the A specimen has leaked in transit, leaving only the B specimen to be tested. 

• In such a case, the laboratory should test the redesignated specimen despite the fact that, under normal circumstances, a sufficient amount of specimen would not have been available for testing.

DOT Part 40 Questions and Answers 1/2002