(1) General. Employers engaged in diving operations involving liveboating shall comply with the following requirements.
(2) Limits. Diving operations involving liveboating shall not be conducted:
(a) With an inwater decompression time of greater than 120 minutes;
(b) 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;
(c) Using mixed gas at depths greater than 220 fsw;
(d) In rough seas which significantly impede diver mobility or work function; or
(e) In other than daylight hours.
(3) Procedures.
(a) The propeller of the vessel shall be stopped before the diver enters or exits the water.
(b) A device shall be used which minimizes the possibility of entanglement of the diver's hose in the propeller of the vessel.
(c) 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.
(d) A standby diver shall be available while a diver is in the water.
(e) A diver-carried reserve breathing gas supply shall be carried by each diver engaged in liveboating operations.
[Statutory Authority: Chapter
49.17 RCW and RCW
49.17.040, [49.17].050 and [49.17].060. WSR 92-22-067 (Order 92-06), § 296-37-565, filed 10/30/92, effective 12/8/92. Statutory Authority: RCW
49.17.040 and
49.17.050. WSR 87-02-002 (Order 86-44), § 296-37-565, filed 12/26/86. Statutory Authority: RCW
49.17.040,
49.17.050,
49.17.240, and chapters
42.30 and
43.22 RCW. WSR 78-10-094 (Order 78-18), § 296-37-565, filed 10/2/78.]