qualified railroad retirement beneficiary
For purposes of this section, the term “qualified railroad retirement beneficiary” means an individual whose name has been certified to the Secretary by the Railroad Retirement Board under section 231f(d) of title 45 . An individual shall cease to be a qualified railroad retirement beneficiary at the close of the month preceding the month which is certified by the Railroad Retirement Board as the month in which he ceased to meet the requirements of section 231f(d) of title 45 .