[Code of Federal Regulations]
[Title 46, Volume 7]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR197.436]

[Page 434-435]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 197_GENERAL PROVISIONS--Table of Contents
 
                 Subpart B_Commercial Diving Operations
 
Sec. 197.436  Liveboating.

    (a) During liveboating operations, the person-in-charge shall insure 
that--
    (1) Diving is not conducted in seas that impede station-keeping 
ability of the vessel;
    (2) Liveboating operations are not conducted--
    (i) From 1 hour after sunset to 1 hour before sunrise; or
    (ii) During periods of restricted visibility;
    (3) The propellers of the vessel are stopped before the diver enters 
or exits the water; and

[[Page 435]]

    (4) A boat is ready to be launched with crew in the event of an 
emergency.
    (b) As used in paragraph (a)(2)(ii) of this section, restricted 
visibility means any condition in which vessel navigational visibility 
is restricted by fog, mist, falling snow, heavy rainstorms, sandstorms 
or any other similar causes.
    (c) During liveboating operations, the diving supervisor shall 
insure that--
    (1) Diving is not conducted at depths greater than 220 fsw;
    (2) Diving is not conducted in seas that impede diver mobility or 
work function;
    (3) A means is used to prevent the diver's hose from entangling in 
the propellers of the vessel;
    (4) Each diver carries a reserve breathing gas supply;
    (5) A standby diver is available while a diver is in the water;
    (6) Diving is not conducted with in-water decompression times 
greater than 120 minutes; and
    (7) The person-in-charge is notified before a diver enters or exits 
the water.

           periodic tests and inspections of diving equipment