38 C.F.R. § 3.953
(a) In receipt of or entitled to receive benefits on December 31, 1958. Any person receiving or entitled to receive benefits under any public law administered by the Department of Veterans Affairs on December 31, 1958, may, except where there was fraud, clear and unmistakable error of fact or law, or misrepresentation of material facts, continue to receive such benefits as long as the conditions warranting such payment under those laws continue. The greater benefit under the previous law or the corresponding section of title 38 U.S.C., will be paid in the absence of an election to receive the lesser benefit.
(Authority: Section 10, Pub. L. 85-857)
(b) Emergency officers' retirement pay. Any person who was receiving, or entitled to receive, emergency officers' retirement pay, or other privileges or benefits as a retired emergency officer of World War I, on December 31, 1958, under the laws in effect on that day, will, except where there was fraud, clear and unmistakable error as to conclusion of fact or law, or misrepresentation of material facts, continue to receive, or be entitled to receive, emergency officers' retirement pay at the rate otherwise payable on December 31, 1958, and such other privileges and benefits, so long as the conditions warranting such pay, privileges, and benefits under those laws continue.
(Authority: Section 11, Pub. L. 85-857)
[26 FR 1608, Feb. 24, 1961, as amended at 26 FR 8561, Sept. 13, 1961; 26 FR 12766, Dec. 30, 1961]