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24 TABLE 15 PHMSA 2008 ALCOHOL TEST RESULTS Refusals Number of Confirma- Confirmation Tests Confirmation Tests BAC 0.0200.039 tion Test Results Total Number of Cancelled Tests Screening Test Other Refusals BAC 0.020 BAC 0.020 BAC 0.040 Test Reason "Shy Lung" Results Postaccident 385 385 0 2 0 0 0 0 0 Reasonable Cause 85 70 15 13 0 13 0 0 0 Return-to-Duty 73 73 0 1 0 0 0 0 0 Follow-up 1,265 1,250 14 12 2 8 0 1 0 Total 1,808 1,778 29 28 2 21 0 1 0 FIGURE 5 PHMSA 2008 drug and alcohol unweighted positivity rates by test type. TABLE 16 FTA 2008 DRUG TEST RESULTS Refusals Total Number of Test Positive for Cocaine Positive for Opiates Verified Negative Verified Positive Tests for One or Cancelled Tests Amphetamines Other Refusals "Shy Bladder" Phencyclidine Test Reason More Drugs Adulterated Positive for Positive for Positive for Substituted Marijuana Results Tests Pre-employment 89,406 87,482 1,792 1,351 344 49 25 64 9 6 9 108 180 Random 97,546 96,742 715 448 234 4 16 31 5 4 20 60 207 Postaccident 14,630 14,450 168 87 64 1 10 12 0 0 1 11 41 Reasonable Suspicion 561 500 45 19 20 1 4 4 1 0 2 13 6 Return-to-Duty 761 747 12 10 1 0 0 1 0 0 0 2 3 Follow-up 6,154 6,071 75 29 40 0 2 5 0 0 4 4 6 Total 209,058 205,992 2,807 1,944 703 55 57 117 15 10 36 198 443 unweighted positivity rate. Marijuana was the most com- PUBLIC TRANSIT monly detected drug. The FTA collects and receives data from all regulated grant- For alcohol, reasonable cause tests had the highest number ees and all subrecipients from the grantees and any safety- of positives, with follow-up tests second. Reasonable cause sensitive contractors who are considered to be covered was the type of test with the highest unweighted positivity rate. employers by FTA.