fstbttms
Contributor
Hookah which can only technically considered surface supplied diving (certainly not by any real commercial diving governing body IMCA, DCBC, ADCI, ETC) still would require a 4 man team at a minimum to be lawful. I understand these regulations as they affect my daily life as a commercial diver. Not hating on the practice. I did it myself for quite some time. It's just damn unsafe.
Again, OSHA regs don't apply to most hull cleaning companies. And whether or not you believe it's "damn unsafe," I guarantee the hull cleaning industry has a better safety record than the hard hat industry.