Volunteer Opportunities. What information do I need to fill out?You will need the volunteer's name, title, your organization name, and contact information. Listed below are documents that you may be required to provide depending on your situation. Other documents not listed may also be required:. The Tarrant Area Food Bank's volunteer opportunities range from quality control, community kitchen, community market, community gardens, mobile distributions. To prove your voluntary work, you can obtain photographed proof or receive an all-mighty reference letter. Are you legally authorized to work in the U.S.? Military. Military Affidavit. This form is used as proof to the court that a custodial or noncustodial parent is in the military.