Except as provided in subsection (b) of this section and the Internal Revenue Code of 1986 [
26 U.S.C. 1 et seq.], notwithstanding any other law of the United States, or of any State, territory, or the District of Columbia, no annuity or supplemental annuity shall be assignable or be subject to any tax or to garnishment, attachment, or other legal process under any circumstances whatsoever, nor shall the payment thereof be anticipated
1
So in original. Probably should be followed by a period.