Maryland State Personnel and Pensions Section 29-412
§ 29-412.
  Subject to § 29-413 of this subtitle, each fiscal year, the Board of Trustees shall adjust an initial allowance by multiplying the initial allowance by the fraction that has:
    (1)   as its numerator, the Consumer Price Index for the calendar year ending December 31 of the preceding fiscal year; and
    (2)   as its denominator:
      (i)   for a retiree, the beneficiary of a retiree, or the surviving spouse of a member, the Consumer Price Index for the calendar year ending December 31 of the fiscal year in which the retiree or member was last employed; or
      (ii)   for a former member or the beneficiary of a former member, the Consumer Price Index for the calendar year ending December 31 of the fiscal year in which the former member reaches normal retirement age.