(a) General. Employers engaged in diving operations involving liveboating shall comply with the following requirements.
(b) Limits. Diving operations involving liveboating shall not be conducted:
(1) With an inwater decompression time of greater than 120 minutes;
(2) Using surface-supplied air at depths deeper than 190 fsw, except that dives with bottom times of 30 minutes or less may be conducted to depths of 220 fsw;
(3) Using mixed gas at depths greater than 220 fsw;
(4) In rough seas which significantly inpede diver mobility or work function; or
(5) In other than daylight hours.
(c) Procedures. (1) The propeller of the vessel shall be stopped before the diver enters or exits the water.
(2) A device shall be used which minimizes the possibility of entanglement of the diver's hose in the propeller of the vessel.
(3) Two-way voice communication between the designated person-in-charge and the person controlling the vessel shall be available while the diver is in the water.
(4) A standby diver shall be available while a diver is in the water.
(5) A diver-carried reserve breathing gas supply shall be carried by each diver engaged in liveboating operations.
authority: 33 U.S.C. 941;
29 U.S.C. 653,
655,
657; Secretary of Labor's Order No. 12-71 (36 FR 8754); 8-76 (41 FR 25059), 9-83 (48 FR 35736), 1-90 (55 FR 9033), 6-96 (62 FR 111), 3-2000 (65 FR 50017), 5-2002 (67 FR 65008), 5-2007 (72 FR 31160), 4-2010 (75 FR 55355), 1-2012 (77 FR 3912), or 08-2020 (85 FR 58393);
29 CFR part 1911; and
5 U.S.C. 553,
as
source: 39 FR 23502, June 27, 1974, unless otherwise noted.
cite as: 29 CFR 1910.427