• Part Number:
    1910
  • Part Number Title:
    Occupational Safety and Health Standards
  • Subpart:
    1910 Subpart T
  • Subpart Title:
    Commercial Diving Operations
  • Standard Number:
  • Title:
    SCUBA diving.
  • GPO Source:
1910.424(a)
General. Employers engaged in SCUBA diving shall comply with the following requirements, unless otherwise specified.
1910.424(b)
Limits. SCUBA diving shall not be conducted:
1910.424(b)(1)
At depths deeper than 130 fsw;
1910.424(b)(2)
At depths deeper than 100 fsw or outside the no-decompression limits unless a decompression chamber is ready for use;
1910.424(b)(3)
Against currents exceeding one (1) knot unless line-tended; or
1910.424(b)(4)
In enclosed or physically confining spaces unless line-tended.
1910.424(c)
Procedures.
1910.424(c)(1)
A standby diver shall be available while a diver is in the water.
1910.424(c)(2)
A diver shall be line-tended from the surface, or accompanied by another diver in the water in continuous visual contact during the diving operations.
1910.424(c)(3)
A diver shall be stationed at the underwater point of entry when diving is conducted in enclosed or physically confining spaces.
1910.424(c)(4)
A diver-carried reserve breathing gas supply shall be provided for each diver consisting of:
1910.424(c)(4)(i)
A manual reserve (J valve); or
1910.424(c)(4)(ii)
An independent reserve cylinder with a separate regulator or connected to the underwater breathing apparatus.
1910.424(c)(5)
The valve of the reserve breathing gas supply shall be in the closed position prior to the dive.