The Department of Transportation is making a series of minor or technical amendments to its drug and alcohol testing procedures. The most significant of these include revising the initial test cutoff level for marijuana metabolites, changing split specimen collection procedures to be consistent with those of the Department of Health and Human Services, revising the temperature range for urine drug specimens, revising the drug testing custody and control form and modifying the alcohol testing form, clarifying laboratory reporting procedures to consortiums, deleting a requirement for a second "air blank" after alcohol confirmation tests, specifying procedures related to the display of the sequential number for alcohol tests, and clarifying chain of custody requirements. The changes have the purposes of updating the procedures to be consistent with Department of Health and Human Services guidelines and addressing implementation problems of which the Department has become aware.