Pendergast v. Arizona State Retirement System, 323 P.3d 1186

Background

Bonnie Pendergast joined ASRS in 1984, taught out-of-state (Minnesota) 1996–2006, returned to Arizona, and sought in 2012 to purchase 9.89 years of prior public service credit under A.R.S. § 38-743.
The Public Service Credit Purchase Program (A.R.S. § 38-743) was adopted in 1987 and expanded by 1996 to allow active ASRS members to purchase unlimited prior public service credit (payment then by normal cost). Proposition 100 (1998) later enshrined pension protections in the Arizona Constitution.
In 2004 the purchase cost returned to actuarial present value; in 2009 the legislature added a 5-year ASRS service eligibility prereq; in 2011 the legislature capped purchasable out-of-state service at 60 months (five years).
ASRS denied Pendergast’s request to purchase 9.89 years under the post-2011 statute; she administratively appealed, then sued. The superior court ruled the 2011 amendment violated Article XXIX, § 1(C) of the Arizona Constitution; ASRS appealed.
The court framed the core legal question as whether the ability to purchase credited service under the Program is a “public retirement system benefit” protected by Article XXIX, § 1(C) (Pension Clause) and, if so, whether the 2011 amendment unconstitutionally diminished that benefit.

Issues

Issue	Plaintiff's Argument	Defendant's Argument	Held
Whether the ability to purchase credited service under § 38-743 is a "public retirement system benefit" protected by Article XXIX, § 1(C)	The Program existed and had been expanded before Proposition 100 (1998); the term “may” in § 38-743(A) allows members the option to purchase credit, so that option is a protected benefit.	The statute’s use of “may” and other indicia (e.g., sunset clauses) show the legislature retained power to modify or revoke the Program, so it is not a constitutionally protected benefit.	The court held the purchase option was a protected public retirement system benefit because the Program, as expanded by 1996, existed when voters approved Proposition 100 and “may” is read permissively as a member’s option.
Whether the 2011 amendment (60-month cap) unconstitutionally diminishes or impairs Pendergast’s vested pension benefit under the Pension Clause	Limiting purchasable service to 60 months diminishes the pre-1998 right to purchase unlimited prior public service and thus impairs protected pension benefits.	The legislature may amend retirement statutes; the change is a permissible legislative modification of program terms.	The court held the 2011 cap unconstitutionally diminishes Pendergast’s protected pension benefit because it reduces the amount of prior service she could purchase under the version of the Program in effect in 1998.
Whether a separate Contract Clause analysis is required	Pendergast relies primarily on the Pension Clause; contract protections apply too but Pension Clause suffices.	ASRS argued broader legislative authority; but not separately urged.	The court did not need an independent Contract Clause analysis because the Pension Clause provided independent protection and resolved the case.

Key Cases Cited

Yeazell v. Copins, 98 Ariz. 109, 402 P.2d 541 (1965) (recognizes vested contractual theory of public employee pensions)
Norton v. Arizona Dep’t of Pub. Safety Local Ret. Bd., 150 Ariz. 303, 723 P.2d 652 (1986) (explains impairment/contract analysis for public retirement benefits)
Proksa v. Arizona State School for the Deaf & the Blind, 205 Ariz. 627, 74 P.3d 939 (2003) (states that employee acceptance of employment forms a contractual promise of retirement benefits)
Thurston v. Judges’ Retirement Plan, 179 Ariz. 49, 876 P.2d 545 (1994) (amendments beneficial to employees become part of the contract by presumption of acceptance)
Buddell v. Board of Trustees, State Univ. Retirement Sys. of Illinois, 514 N.E.2d 184 (Ill. 1987) (holding a member’s right to purchase credited military service is a constitutionally protected retirement-system benefit)