Average monthly remuneration (AMR) means the amount obtained by adding together the creditable compensation and wages earned by the employee after 1936 and before the LSDP closing date and dividing that sum by three times the number of calendar quarters in that period. (Refer to part 211 of this chapter for a definition of creditable compensation and section 209 of the Social Security Act for a definition of creditable wages.)
Closing date means whichever of the following produce the highest AMR:
20 C.F.R. § 234.20