20 C.F.R. § 404.232 Computing your average monthly wage under the guaranteed alternative.
Title 20 - Employees' Benefits
(a) General. With the exception described in paragraph (b) of this section, we follow the rules in §404.221 to compute your average monthly wage. (b) Exception. We do not use any year after the year you reach age 61 as a computation base year in computing your average monthly wage for purposes of the guaranteed alternative.
Title 20: Employees' Benefits
PART 404—FEDERAL OLD-AGE, SURVIVORS AND DISABILITY INSURANCE (1950– )
Subpart C—Computing Primary Insurance Amounts
Guaranteed Alternative for People Reaching Age 62 After 1978 but Before 1984
§ 404.232 Computing your average monthly wage under the guaranteed alternative.