A Manual Change Form is required to change the Date of Injury; Nature of Injury; and Social Security Number due to the fact that these are locked fields in the DWC electronic database. Your signed form may be faxed or mailed. Changes will be made by the DWC staff once the signed form is received. The Manual Change Form must be followed by an 02 transaction containing the updated fields. For faxed forms, the 02 can be transmitted immediately. If mailed, please allow five days before submitting the 02 change. Forms not signed will be returned for signature, thus delaying the change requested.