from the state police site.
The address on my Resident Concealed Handgun Permit is no longer correct. Is my permit still valid?
Yes, but you may request a replacement permit if you wish. The clerk of a circuit court that issued a valid concealed handgun permit shall, upon presentation of the valid permit and proof of a new address of residence by the permit holder, issue a replacement permit specifying the permit holder's new address.
M1 Garand, Kimber Custom Carry II, Ruger P-95, Mossberg Persuader 12ga., Charles Daly 12ga(My gobbler gobbler)
http://www.law.cornell.edu/uscode/10/311.html