TN 20 (05-11)
RS 00301.131 Use of Railroad (RR) Compensation and Military Service (MS) Credits for Freeze Insured Status
A. Policy for the use of RR compensation and MS credits for freeze insured status
For freeze-insured status, include quarters of coverage based on certain RR compensation or MS credits that are not creditable for other Retirement, Survivors, and Disability Insurance purposes.
RS 01601.260, Use of Earnings By RRB and SSA