[Code of Federal Regulations]
[Title 49, Volume 3]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR199.105]

[Page 216-218]
 
                        TITLE 49--TRANSPORTATION
 
 CHAPTER I--RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION, DEPARTMENT OF 
                       TRANSPORTATION (CONTINUED)
 
PART 199_DRUG AND ALCOHOL TESTING--Table of Contents
 
                         Subpart B_Drug Testing
 
Sec. 199.105  Drug tests required.

    Each operator shall conduct the following drug tests for the 
presence of a prohibited drug:
    (a) Pre-employment testing. No operator may hire or contract for the 
use of any person as an employee unless that person passes a drug test 
or is covered by an anti-drug program that conforms to the requirements 
of this part.
    (b) Post-accident testing. As soon as possible but no later than 32 
hours after an accident, an operator shall drug test each employee whose 
performance either contributed to the accident or cannot be completely 
discounted as a contributing factor to the accident. An operator may 
decide not to test under this paragraph but such a decision must be 
based on the best information available immediately after the accident 
that the employee's performance could not have contributed to the 
accident or that, because of the time between that performance and the 
accident, it is not likely that a drug test would reveal whether the 
performance was affected by drug use.
    (c) Random testing. (1) Except as provided in paragraphs (c)(2) 
through (4) of this section, the minimum annual percentage rate for 
random drug testing shall be 50 percent of covered employees.
    (2) The Administrator's decision to increase or decrease the minimum 
annual percentage rate for random drug

[[Page 217]]

testing is based on the reported positive rate for the entire industry. 
All information used for this determination is drawn from the drug MIS 
reports required by this subpart. In order to ensure reliability of the 
data, the Administrator considers the quality and completeness of the 
reported data, may obtain additional information or reports from 
operators, and may make appropriate modifications in calculating the 
industry positive rate. Each year, the Administrator will publish in the 
Federal Register the minimum annual percentage rate for random drug 
testing of covered employees. The new minimum annual percentage rate for 
random drug testing will be applicable starting January 1 of the 
calendar year following publication.
    (3) When the minimum annual percentage rate for random drug testing 
is 50 percent, the Administrator may lower this rate to 25 percent of 
all covered employees if the Administrator determines that the data 
received under the reporting requirements of Sec. 199.119 for two 
consecutive calendar years indicate that the reported positive rate is 
less than 1.0 percent.
    (4) When the minimum annual percentage rate for random drug testing 
is 25 percent, and the data received under the reporting requirements of 
Sec. 199.119 for any calendar year indicate that the reported positive 
rate is equal to or greater than 1.0 percent, the Administrator will 
increase the minimum annual percentage rate for random drug testing to 
50 percent of all covered employees.
    (5) The selection of employees for random drug testing shall be made 
by a scientifically valid method, such as a random number table or a 
computer-based random number generator that is matched with employees' 
Social Security numbers, payroll identification numbers, or other 
comparable identifying numbers. Under the selection process used, each 
covered employee shall have an equal chance of being tested each time 
selections are made.
    (6) The operator shall randomly select a sufficient number of 
covered employees for testing during each calendar year to equal an 
annual rate not less than the minimum annual percentage rate for random 
drug testing determined by the Administrator. If the operator conducts 
random drug testing through a consortium, the number of employees to be 
tested may be calculated for each individual operator or may be based on 
the total number of covered employees covered by the consortium who are 
subject to random drug testing at the same minimum annual percentage 
rate under this subpart or any DOT drug testing rule.
    (7) Each operator shall ensure that random drug tests conducted 
under this subpart are unannounced and that the dates for administering 
random tests are spread reasonably throughout the calendar year.
    (8) If a given covered employee is subject to random drug testing 
under the drug testing rules of more than one DOT agency for the same 
operator, the employee shall be subject to random drug testing at the 
percentage rate established for the calendar year by the DOT agency 
regulating more than 50 percent of the employee's function.
    (9) If an operator is required to conduct random drug testing under 
the drug testing rules of more than one DOT agency, the operator may--
    (i) Establish separate pools for random selection, with each pool 
containing the covered employees who are subject to testing at the same 
required rate; or
    (ii) Randomly select such employees for testing at the highest 
percentage rate established for the calendar year by any DOT agency to 
which the operator is subject.
    (d) Testing based on reasonable cause. Each operator shall drug test 
each employee when there is reasonable cause to believe the employee is 
using a prohibited drug. The decision to test must be based on a 
reasonable and articulable belief that the employee is using a 
prohibited drug on the basis of specific, contemporaneous physical, 
behavioral, or performance indicators of probable drug use. At least two 
of the employee's supervisors, one of whom is trained in detection of 
the possible symptoms of drug use, shall substantiate and concur in the 
decision to test an employee. The concurrence between the two 
supervisors may be by telephone. However, in the case of operators with 
50 or fewer employees subject

[[Page 218]]

to testing under this part, only one supervisor of the employee trained 
in detecting possible drug use symptoms shall substantiate the decision 
to test.
    (e) Return-to-duty testing. A covered employee who refuses to take 
or has a positive drug test may not return to duty in the covered 
function until the covered employee has complied with applicable 
provisions of DOT Procedures concerning substance abuse professionals 
and the return-to-duty process.
    (f) Follow-up testing. A covered employee who refuses to take or has 
a positive drug test shall be subject to unannounced follow-up drug 
tests administered by the operator following the covered employee's 
return to duty. The number and frequency of such follow-up testing shall 
be determined by a substance abuse professional, but shall consist of at 
least six tests in the first 12 months following the covered employee's 
return to duty. In addition, follow-up testing may include testing for 
alcohol as directed by the substance abuse professional, to be performed 
in accordance with 49 CFR part 40. Follow-up testing shall not exceed 60 
months from the date of the covered employee's return to duty. The 
substance abuse professional may terminate the requirement for follow-up 
testing at any time after the first six tests have been administered, if 
the substance abuse professional determines that such testing is no 
longer necessary.

[53 FR 47096, Nov. 21, 1988, as amended by Amdt. 199-2, 54 FR 51850, 
Dec. 18, 1989; 59 FR 62227, Dec. 2, 1994; Amdt. 199-15, 63 FR 13000, 
Mar. 17, 1998; Amdt 199-15, 63 FR 36863, July 8, 1998. Redesignated and 
amended by Amdt. 199-19, 66 FR 47118, Sept. 11, 2001]