(a) Responsibility for deductions. If an enrollee is entitled to railroad retirement benefits, his or her SMI premiums are deducted from those benefits by the Railroad Retirement Board (RRB) even though he or she is also entitled to social security benefits or a civil service annuity, or both.

(b) Action when benefits are suspended. If the railroad retirement benefits are suspended, the RRB sends premium notices requesting direct remittance, to be made in accordance with the rules set forth in Subpart D of this part.