Section 13-205. Reduction of contributions by members

a. The mayor, by
  executive order adopted prior to the first day of June, nineteen hundred
  sixty-four, may direct that beginning with the first full payroll period
  following July first, nineteen hundred sixty-four and  ending  with  the
  payroll  period  immediately  prior  to  that, the first day of which is
  nearest to June thirtieth, nineteen hundred sixty-five,  the  deductions
  from  the  semi-monthly  pay, salary or compensation of each member made
  pursuant to the provisions of this subchapter shall be  reduced  by  two
  and one-half per cent of such pay, salary or compensation.
    b.  The  mayor,  by  executive order adopted prior to June nineteenth,
  nineteen hundred sixty-five, may direct that beginning  with  the  first
  full  payroll  period  following July first, nineteen hundred sixty-five
  and ending with the payroll period immediately prior to that, the  first
  day  of  which is nearest to June thirtieth, nineteen hundred sixty-six,
  the deductions from the semi-monthly pay, salary or compensation of each
  member made pursuant to the  provisions  of  this  subchapter  shall  be
  reduced   by   two  and  one-half  per  cent  of  such  pay,  salary  or
  compensation.
    c. The mayor, by executive order adopted  prior  to  June  nineteenth,
  nineteen  hundred  sixty-six,  may  direct that beginning with the first
  full payroll period following July first, nineteen hundred sixty-six and
  ending with the payroll period immediately prior to that, the first  day
  of which is nearest to June thirtieth, nineteen hundred sixty-seven, the
  deductions  from  the  semi-monthly  pay, salary or compensation of each
  member made pursuant to the  provisions  of  this  subchapter  shall  be
  reduced   by   two  and  one-half  per  cent  of  such  pay,  salary  or
  compensation.
    d. The mayor, by executive order adopted prior  to  June  seventeenth,
  nineteen hundred sixty-seven, may direct that beginning with the payroll
  period,  the  first  day  of  which  is  nearest to July first, nineteen
  hundred sixty-seven and ending with the payroll period immediately prior
  to that, the first day of which is nearest to June  thirtieth,  nineteen
  hundred sixty-eight, the deductions from the semi-monthly pay, salary or
  compensation  of  each  member  made  pursuant to the provisions of this
  subchapter shall be reduced by two and one-half per cent  of  such  pay,
  salary or compensation.
    e. (1) Subject to the provisions of paragraph two of this subdivision,
  beginning  with  the  first full payroll period following January first,
  nineteen  hundred  sixty-seven,  and  ending  with  the  payroll  period
  immediately  prior  to  that,  the first day of which is nearest to June
  thirtieth,  nineteen  hundred  sixty-eight,  the  deductions  from   the
  semi-monthly pay, salary or compensation of each member made pursuant to
  the  provisions  of this subchapter shall be reduced by two and one-half
  per cent of such pay, salary or compensation.
    (2) The reduction provided for by paragraph one  of  this  subdivision
  shall  be  in addition to any reduction made during the period mentioned
  in such paragraph one pursuant to subdivision c or d  of  this  section.
  The  amount  of  the  reduction  made  pursuant to paragraph one of this
  subdivision in the deductions of any such member for such portion of the
  period mentioned in such paragraph one as precedes the effective date of
  this subdivision shall be refunded without interest.
    (3) Beginning with the payroll  period  the  first  day  of  which  is
  nearest to June thirtieth, nineteen hundred sixty-eight, and ending with
  the  payroll period immediately prior to that, the first day of which is
  nearest to June thirtieth, nineteen hundred seventy-one, the  deductions
  from  the  semi-monthly  pay, salary or compensation of each member made
  pursuant to the provisions of this subchapter shall be reduced  by  five
  per cent of such pay, salary or compensation.

    f.  The mayor, by executive order adopted prior to the date forty-five
  days after the adjournment of the regular session of the legislature  in
  nineteen hundred seventy-one, may direct that beginning with the payroll
  period,  the  first  day of which is nearest to June thirtieth, nineteen
  hundred seventy-one and ending with the payroll period immediately prior
  to  that,  the first day of which is nearest to June thirtieth, nineteen
  hundred seventy-two, the deductions from the semi-monthly pay, salary or
  compensation of each member made pursuant  to  the  provisions  of  this
  subchapter  shall  be  reduced  by  five per cent of such pay, salary or
  compensation.
    g. The mayor, by executive order adopted prior to the date  forty-five
  days  after the adjournment of the regular session of the legislature in
  nineteen hundred seventy-two or June seventeenth of such year, whichever
  is later, may direct that beginning with the payroll period,  the  first
  day  of which is nearest to June thirtieth, nineteen hundred seventy-two
  and ending with the payroll period immediately prior to that, the  first
  day   of   which   is   nearest  to  June  thirtieth,  nineteen  hundred
  seventy-three, the deductions  from  the  semi-monthly  pay,  salary  or
  compensation  of  each  member  made  pursuant to the provisions of this
  subchapter shall be reduced by five per cent  of  such  pay,  salary  or
  compensation.