38 CFR §6.21

1. (a)Definition. For the purpose of this section, the term guardian includes any fiduciary certified by the appropriate Veterans Service Center Manager under § 13.55 of this title to receive benefits in a fiduciary capacity for an insured or beneficiary.
2. (b)Authority. For the purpose of this part, a guardian of an insured or beneficiary shall have authority to: Apply for conversion of a policy or change of plan; reinstate a policy; withdraw dividends held on deposit or credit; select or change a dividend option; obtain a policy loan; cash surrender a policy; authorize a deduction from benefits or allotment from military retired pay to pay premiums; apply for and receive payment of the proceeds on a matured policy; select or change the premium payment option; apply for waiver of premiums; select or change the settlement option for beneficiaries; assign a beneficiary's interest as provided under section 1953 of title 38 U.S.C.