Section 13-580. Miscellaneous provisions

a.  Benefits  payable under the
  variable annuity program shall be in addition to other benefits  payable
  pursuant to this chapter.
    b.  In  the case of a contributor who is a participant in the variable
  annuity program,  an  election,  pursuant  to  section  13-523  of  this
  chapter,  to  leave  his  or her accumulated deductions with the annuity
  savings fund and to continue to contribute to such fund shall be  deemed
  to  be  an  election  to continue as a participant. If all of his or her
  accumulated deductions have already been credited to his or her  account
  in  the  variable  annuity  savings  fund, he or she may, subject to the
  provisions of such section, elect to continue as a participant.
    c. In applying the provisions of paragraphs two,  three  and  four  of
  section  13-525  of  this  chapter  in  the case of a participant in the
  variable annuity program, the value of any units credited to his or  her
  account  in  the variable annuity savings fund shall, for the purpose of
  determining his or her entitlement to, and the amount of, a  withdrawal,
  be  deemed  to  be  part  of  his or her accumulated deductions, and the
  determination       of       the        amount        of        annuity,
  pension-providing-for-increased-take-home-pay,  and retirement allowance
  shall be made as if he or she were not a participant.
    d. The provisions of section 13-561 of this chapter shall apply in the
  case of benefits under the variable annuity program.