I am a member of a kayaking group - Great Lakes region.
We are curious as to what the information that is collected during routine "boardings"/"safety inspections" is used for. They take information, such as your birth date and address, they don't ask for ID, and they check your life jacket. They also take the hull ID. (They do ask for ID when they inspect a boat w/motor that has to be registered.)
In one instance a member lost his kayak (left camping, bad weather, came back, and it apparently got washed out). He had been inspected the previous summer. He reported the kayak lost to the IL police, not the CG. A couple days later the Sheriff (not the PD) contacted him - as it turned up and someone reported it, and they had located him through a very round-about method, while the CG had his current address. (He gave the PD the Hull ID, which the Sheriff didn't know about. Not a lot of information sharing.)
In another instance, one of our members had an out-of-state warrant for failure to pay child support. He had been dodging it for a few years, which we didn't know about. He was with us, and he gave the CG his address (would he have given incorrect info if we weren't listening - who knows). We found out several months later he was worried they'd come knocking on his door, but they never did. He told us about it months later, after he got an attorney, paid up, and got the warrant cleared.
So we are wondering what exactly is done with the information that's collected. Form CG-4100 "Report of Boarding" is the receipt that is given. A Google search on this says the form is "scanned" into their database.
The back of the form gives a list of things the CG enforces, which is all water, immigration, and fishing related. It appears the CG is only interested in that, and the info is collected for internal use only.
Maybe with some recent events regarding missing boaters, and the CG public promotion of giving out Kayak owner ID stickers to fill out, they are doing more to share Kayak ownership data.
Thanks for any clarification.