[Code of Federal Regulations]
[Title 46, Volume 1]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR4.06-1]

[Page 47-48]
 
                           TITLE 46--SHIPPING
 
         CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY
 
PART 4_MARINE CASUALTIES AND INVESTIGATIONS--Table of Contents
 
    Subpart 4.06_Mandatory Chemical Testing Following Serious Marine 
            Incidents Involving Vessels in Commercial Service
 
Sec. 4.06-1  Responsibilities of the marine employer.

    Source: CGD 86-067, 53 FR 47078, Nov. 21, 1988, unless otherwise 
noted.


    (a) At the time of occurrence of a marine casualty, a discharge of 
oil into the navigable waters of the United States, a discharge of a 
hazardous substance into the navigable waters of the United States, or a 
release of a hazardous substance into the environment of the United 
States, the marine employer shall make a timely, good faith 
determination as to whether the occurrence currently is, or is likely to 
become, a serious marine incident.
    (b) When a marine employer determines that a casualty or incident 
is, or is likely to become, a serious marine incident, the marine 
employer shall take all practicable steps to have each individual 
engaged or employed on board the vessel who is directly involved in the 
incident chemically tested for evidence of drug and alcohol use as 
required in this part.
    (c) The marine employer determines which individuals are directly 
involved in a serious marine incident (SMI). A law enforcement officer 
may determine that additional individuals are directly involved in the 
SMI. In these cases, the marine employer must take all practical steps 
to have these additional individuals tested according to this part.

[[Page 48]]

    (d) The requirements of this subpart do not prevent personnel who 
are required to be tested from performing duties in the aftermath of an 
SMI when their performance is necessary to respond to safety concerns 
directly related to the incident.
    (e) The marine employer shall ensure that all individuals engaged or 
employed on board a vessel are fully indoctrinated in the requirements 
of this subpart, and that appropriate vessel personnel are trained as 
necessary in the practical applications of these requirements.

[CGD 86-067, 53 FR 47078, Nov. 21, 1988, as amended by USCG-2000-7759, 
66 FR 42967, Aug. 16, 2001; USCG-2001-8773, 70 FR 75960, Dec. 22, 2005]