Where Do I Return My Carnet?

Carnets must be returned to:

boomerang carnets®
8715 Cary Algonquin Rd.
2nd Floor
Cary, IL 60013-2401
USA

Make a copy of all pages of the carnet including unused and blank pages. Send the carnet using a method that tracks the package and provides a return receipt. There is a US$400 fee for any carnet that is not returned.