Choptop84, I am not trying to be disrespectful, but I was not asking about the law, just interference between the two. I have not seen very many Coast Guards here in Oklahoma. Lake Patrol maybe, but not Coast Guard. I know that is illegal to use, but so is speeding, cheating on your taxes as well as boosting your CB.
On a side note, what good is a Radio on your boat if you can not speak to anyone on land. All I have read was "get a Marine for your boat so you can call for help or communicate with other boaters and marinas, don't trust a Cell Phone". If I need my wife to meet me at another ramp, I need to get the info to her somehow, as well as telling her I may not make it for supper or I need fuel. Kinda like a scanner in Oklahoma. You can have one and you can listen to one, but you can not use it to aid in illegal activity or interfere with Public Safety.
Some of the locations we were thinking of going, Hand Held CBs are worthless. 300 Yards and don't even think about Cell Phones or Walkie Talkies. When you get into the Mountains, you need something that can go further without line of site. The use is for safety.
There are people around here that go Coyote hunting and Yes they Spot and Chase, dropping Dogs to get the Coyote, then spend an Hour trying to find the Dogs. You can use motor vehicles to track your dogs in the "act of hunting". As for Coyote Hunting in Oklahoma, no restrictions except for the use of artificial Light or sight dog. Hounds are fine.
Maybe I should have asked the question like this "If I have a CB and happen to have a marine hand held that was accidentally left on, will it cause interference?" or "I have a boat with a CB, I Like it so I can communicate with my Family, but if I run into Trouble, I am told to have a Marine radio on my boat. Will the two radios work properly on the Boat at the same time?"
Again this is not a question of law and who will come get me if I am breaking the law, this is a question about interference.