42 

14 CFR Ch. I (1–1–19 Edition) 

§ 120.109 

of this section before putting the indi-
vidual to work in a safety-sensitive 
function; 

(ii) The employer removed the indi-

vidual from the employer’s random 
testing program conducted under this 
subpart for reasons other than a 
verified positive test result on an FAA- 
mandated drug test or a refusal to sub-
mit to such testing; and 

(iii) The individual will be returning 

to the performance of a safety-sen-
sitive function. 

(5) Before hiring or transferring an 

individual to a safety-sensitive func-
tion, the employer must advise each in-
dividual that the individual will be re-
quired to undergo pre-employment 
testing in accordance with this sub-
part, to determine the presence of 
marijuana, cocaine, opiates, 
phencyclidine (PCP), and amphet-
amines, or a metabolite of those drugs 
in the individual’s system. The em-
ployer shall provide this same notifica-
tion to each individual required by the 
employer to undergo pre-employment 
testing under paragraph (a)(4) of this 
section. 

(b) 

Random drug testing. 

(1) Except as 

provided in paragraphs (b)(2) through 
(b)(4) of this section, the minimum an-
nual percentage rate for random drug 
testing shall be 50 percent of covered 
employees. 

(2) The Administrator’s decision to 

increase or decrease the minimum an-
nual percentage rate for random drug 
testing is based on the reported posi-
tive rate for the entire industry. All in-
formation used for this determination 
is drawn from the statistical reports 
required by § 120.119. In order to ensure 
reliability of the data, the Adminis-
trator considers the quality and com-
pleteness of the reported data, may ob-
tain additional information or reports 
from employers, and may make appro-
priate modifications in calculating the 
industry positive rate. Each year, the 
Administrator will publish in the F

ED

-

ERAL

R

EGISTER

the minimum annual 

percentage rate for random drug test-
ing 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 per-

centage rate for random drug testing is 
50 percent, the Administrator may 
lower this rate to 25 percent of all cov-
ered employees if the Administrator 
determines that the data received 
under the reporting requirements of 
this subpart for two consecutive cal-
endar years indicate that the reported 
positive rate is less than 1.0 percent. 

(4) When the minimum annual per-

centage rate for random drug testing is 
25 percent, and the data received under 
the reporting requirements of this sub-
part for any calendar year indicate 
that the reported positive rate is equal 
to or greater than 1.0 percent, the Ad-
ministrator 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 Secu-
rity numbers, payroll identification 
numbers, or other comparable identi-
fying numbers. Under the selection 
process used, each covered employee 
shall have an equal chance of being 
tested each time selections are made. 

(6) As an employer, you must select 

and test a percentage of employees at 
least equal to the minimum annual 
percentage rate each year. 

(i) As an employer, to determine 

whether you have met the minimum 
annual percentage rate, you must di-
vide the number of random testing re-
sults for safety-sensitive employees by 
the average number of safety-sensitive 
employees eligible for random testing. 

(A) To calculate whether you have 

met the annual minimum percentage 
rate, count all random positives, ran-
dom negatives, and random refusals as 
your ‘‘random testing results.’’ 

(B) To calculate the average number 

of safety-sensitive employees eligible 
for random testing throughout the 
year, add the total number of safety- 
sensitive employees eligible for testing 
during each random testing period for 
the year and divide that total by the 
number of random testing periods. 
Only safety-sensitive employees are to 
be in an employer’s random testing 

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