I was browsing through the GMRS rules and I came across this:
Does this permit a licensed GMRS station to contact any other (GMRS or non-GMRS) station in the event of a true emergency involving the safety of someone's life (as defined elsewhere in the rules)? I imagine that it probably does not, but it isn't worded that way...95.143 Managing a GMRS system in an emergency.
(b) If necessary to communicate an emergency message from a station in a GMRS system, the licensee may permit:
(1) Anyone to be the station operator (see 95.179); and
(2) The station operator to communicate the emergency message to any radio station.