I get a bunch every year and turn them in. Here is a link to a recovery form, fill that out, put it in a small zip lock to protect it and then put it in the same bag as the head. There is a list of drop off locations in the link too. They will send you a letter on where it was planted and give out free lures too as a reward. Now that they are tagging all planted fish, not sure if they will have lures for every head turned in. I keep the forms, a tape measure and scale with my cleaning tools so I can package the heads and forms when cleaning fish. http://www.michigan.gov/dnr/0,1607,7-153-10364_52259_48361-180624--,00.html