In this episode we will explain how to complete and file a Commonwealth agency new member enrollment form. Years ago, fill out "DD Form 149: Application for Correction of Military Records" and submit it to the review board agency of your branch of service.Plan) must complete Social Security Form SSA-1945. Deferred Compensation Plans. Commonwealth's 403(b) Plan gives participants the opportunity to supplement your core retirement benefits. A person seeking a personal exemption or deferral for a fiscal year must apply to the assessors for that year.