38 C.F.R. § 4.69 Dominant hand.
Title 38 - Pensions, Bonuses, and Veterans' Relief
Handedness for the purpose of a dominant rating will be determined by the evidence of record, or by testing on VA examination. Only one hand shall be considered dominant. The injured hand, or the most severely injured hand, of an ambidextrous individual will be considered the dominant hand for rating purposes. (Authority: 38 U.S.C. 1155) [62 FR 30239, June 3, 1997]
Title 38: Pensions, Bonuses, and Veterans' Relief
PART 4—SCHEDULE FOR RATING DISABILITIES
Subpart B—Disability Ratings
The Musculoskeletal System
§ 4.69 Dominant hand.

