[Code of Federal Regulations]

[Title 49, Volume 1]

[Revised as of October 1, 2005]

From the U.S. Government Printing Office via GPO Access

[CITE: 49CFR40.105]



[Page 656]

 

                        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://www.dot.gov/ost/dapc). ODAPC will notify HHS who will 

take appropriate action.