[Code of Federal Regulations]
[Title 49, Volume 1]
[Revised as of October 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR40.105]

[Page 608-609]
 
                        TITLE 49--TRANSPORTATION
 
          SUBTITLE A--OFFICE OF THE SECRETARY OF TRANSPORTATION
 
PART 40--PROCEDURES FOR TRANSPORTATION WORKPLACE DRUG AND ALCOHOL TESTING PROGRAMS--Table of Contents
 
                  Subpart F--Drug Testing Laboratories
 
Sec. 40.105  What happens if the laboratory reports a result different from that expected for a blind specimen?

    (a) If you are an employer, MRO, or C/TPA who submits a blind 
specimen, and if the result reported to the MRO is different from the 
result expected, you must investigate the discrepancy.
    (b) If the unexpected result is a false negative, you must provide 
the laboratory with the expected results (obtained from the supplier of 
the blind specimen), and direct the laboratory to determine the reason 
for the discrepancy.
    (c) If the unexpected result is a false positive, you must provide 
the laboratory with the expected results (obtained from the supplier of 
the blind specimen), and direct the laboratory to determine the reason 
for the discrepancy. You must also notify ODAPC of the discrepancy by 
telephone (202-366-3784) or e-mail (addresses are listed on the ODAPC 
web site, http://

[[Page 609]]

www.dot.gov/ost/dapc). ODAPC will notify HHS who will take appropriate 
action.