The applicant shall not be eligible for the surviving spouse tax credit unless, in addition to meeting the ownership requirements of Rev 402.03, and the residency requirements of Rev 407.03, the applicant is the surviving spouse of any person who was killed or died while on active duty in any qualifying war or armed conflict in RSA 72:28, as established by United States Department of Defense Form 1300 (DD Form 1300).
N.H. Admin. Code § Rev 407.04