This group will be responsible for reviewing proposed changes, including but not limited to those that will be incorporated into the NAACCR Volume II Data Dictionary.  The workgroup will review, evaluate and approve requests for change through an assessment process intended to determine the feasibility of the change and assess the impact on the cancer surveillance community. Members of the CMB will represent their organizations in the approval and implementation planning for the changes approved. Their support will maximize efficiency and coordination in the integration of the changes.