Authorized Learning Centers: To ensure success in redeeming CWNP Training Vouchers and to expedite reimbursements, please follow these voucher validation steps. Enter the voucher number(s) in the space provided below. The system will validate the voucher as "active" or notify you that it has already been used. Valid numbers will enable you to register the voucher, assign your ALC to the voucher, and begin the process for reimbursement.