20 CFR § 234.42
How the employee may designate beneficiaries
February 18, 2021
The employee may designate one or more persons as beneficiaries of the RLS on a form available at any Board office. The employee may specify the share that each beneficiary is to receive. Also, the employee may designate alternate beneficiaries in the event that all primary beneficiaries die before the RLS becomes payable.
(Approved by the Office of Management and Budget under Control No. 3220-0031)