"In an effort to improve Search and Rescue Response the Coast Guard has requested all wireless providers in states other then Alaska to remove the specialized keying sequence, *CG, used to reach the Coast Guard for maritime emergency assistance."
"The Coast Guard has found through research and experience that with the multitude of wireless systems and the misalignment of cellular coverage areas with our regions for Search and Rescue response, the use of this specialized service has resulted in misdirection of emergency calls. This has often added significant delays in the Coast Guard response to those calls for assistance.
The Coast Guard has requested that the cellular companies reroute all *CG calls to the 911 Public Safety Answering Point (PSAP) nearest to where the call originated."
I suspect the USCG hasn't spent much time trying to reach the average 911 system, much less teaching the average 911 operator how to spell "b-o-a-t".