404.311—When does my entitlement to old-age benefits begin and end?
(1)
If you have attained full retirement age (as defined in § 404.409 ), the first month covered by your application in which you meet all requirements for entitlement; or
(2)
If you have attained age 62, but have not attained full retirement age (as defined in § 404.409 ), the first month covered by your application throughout which you meet all requirements for entitlement.