The NEC Revitalization Plan is a guiding document that describes the goals and strategies for encouraging reinvestment in the NEC. Your NEC will not be considered complete without the payment voucher.And digitally sign DD Form 1172-2. • For an assignment of a new address or for an Address Verification Letter, you can submit the form by. The NEC manual is published quarterly (JAN, APR, JUL and OCT) to provide updated NEC information in a timely manner.