Use for Commercial Recreational Purposes: Lifeguard Required. All hotels and property owners in the Commonwealth using swimming pools for commercial recreational purposes shall employ a qualified lifeguard who shall be on duty during the hours which the pool is held open for swimmers. A lifeguard need not be on duty during any other period so long as warning signs are prominently placed, notifying potential users of the hours that the pool is open for swimmers, that the pool is currently not open for swimmers, and that no lifeguard is on duty. Source: MIDC § 9.28.030; amended by PL 11-26, § 4. Commission Comment: See the comment to 3 CMC § 5502.