Statement 2001 uses the following earnings information to derive the number of credits the SSN
holder has earned:
the greater of the 1947 through 1950 Quarters of Coverage (QC) total indicated on
the Master Earnings File (MEF), and the “deemed” QCs derived for the period 1937 through
the earnings indicated on the MEF after 1950 from:
military wages (after 1956), and
the earnings records for all the electronically verified SSNs provided by the requester
or located by the system.
the railroad service indicated on the railroad earnings file (if less than 120 service
for on-request Statements, the earnings amounts provided for this year and last year on the incoming request.
(For automatic Statements , the system uses postings in the last two closed tax years to determine credits
for the lag years (see RM 01310.005.))
To derive Medicare credits the system uses both Social Security-covered and Medicare-qualified government earnings
(MQGE), but it does not use MQGE earnings to derive Social Security credits.