Does OSHA require a Firewatch?

Excuse me, I'm curious about the regulations enforced by OSHA regarding workplace safety. Specifically, does OSHA mandate the presence of a Firewatch in certain work environments? If so, could you elaborate on the scenarios where a Firewatch would be necessary, and what specific responsibilities they would be expected to fulfill? I'm looking to ensure that my workplace complies with all relevant safety standards and want to make sure I'm aware of any potential requirements for specialized personnel.