5 CFR 841.403 - Categories of employees for computation of normal cost percentages.
Normal cost percentages will be determined for each of the following groups of employees:
(b) Congressional employees;
(c) Law enforcement officers, members of the Supreme Court Police, firefighters, nuclear materials couriers, customs and border protection officers, and employees under section 302 of the Central Intelligence Agency Retirement Act of 1964 for Certain Employees.
(d) Air traffic controllers;
(e) Military reserve technicians;
(g) All other employees.