5 C.F.R. § 842.406 Members of Congress and Congressional employees.
Title 5 - Administrative Personnel
The annuity of an employee or Member who has had at least 5 years of service as a congressional employee, Member, or any combination thereof totaling 5 years is— (a) One and seven-tenths percent of average pay multiplied by the total number of years of service as a Member and/or congressional employee not exceeding 20 years: plus (b) One percent of average pay multiplied by the years of service other than that of a Member and/or congressional employee.
Title 5: Administrative Personnel
PART 842—FEDERAL EMPLOYEES RETIREMENT SYSTEM—BASIC ANNUITY
Subpart D—Computations
§ 842.406 Members of Congress and Congressional employees.
