Can you use a crane hook for a fall protection anchor?

Todays question comes from a gentleman in the oil industry. He wants to know:

"Can I use a crane hoist hook as an anchor for fall protection?"

Here is OSHA 29 CFR 1926's response:

1926.502(d)(23)
Personal fall arrest systems shall not be attached to guardrail systems, nor shall they be attached to hoists except as specified in other subparts of this Part.

Subpart M does not mention the permissible use of hoists anywhere, and neither does the Cranes and Hoists standard. So the answer is no, that they cannot be used.