38 CFR 20.1508 - Rule 1508. Waiver.
(a) General. When requested by VA, a participant will waive, in writing, identified procedural processing issues and actions relating to covered claims. VA will provide the participant with a clear explanation, in writing, as to what rights he or she may be waiving. If a hearing on appeal is conducted, the waiver may be formally and clearly entered on the record at the time of hearing. A response to a written waiver request from VA must be filed within the 30-day period prescribed in § 20.1504(a)(3) of this part. Such waiver is not required for matters that have already been waived by virtue of electing participation in the Initiative.
(b) Evidence obtained or submitted after the Statement of the Case - (1) Evidence obtained by VA. If new evidence is obtained by VA following issuance of a Statement of the Case under §§ 19.29 and 19.30 of this chapter, and the claim(s) is not otherwise granted in full based on this new evidence, VA will provide a copy of such evidence to the participant and representative, and request a waiver of review by the agency of original jurisdiction of such evidence and issuance of a Supplemental Statement of the Case pursuant to the provisions set forth in § 20.1304(c) of this part. A response to a written waiver request from VA must be filed within the 30-day period prescribed in § 20.1504(a)(3) of this part. The failure of the participant to agree to a waiver of initial consideration by the agency of original jurisdiction of any evidence obtained by VA will constitute an implied revocation of participation in the Initiative, as provided by § 20.1509(c)(2).
(2) Evidence submitted by participant or representative. If new evidence is submitted by the participant or representative following issuance of a Statement of the Case under §§ 19.29 and 19.30 of this chapter, the participant, by virtue of executing a valid Agreement and Waiver of Rights, is deemed to have knowingly and voluntarily waived agency of original jurisdiction review of such evidence and issuance of a Supplemental Statement of the Case, which permits the Board to review such evidence in the first instance.