The "two-thirds" number is derived from the number of states which have interpreted federal or state constitutional nonimpairment of benefits provisions as affecting pension benefits. It is taken from statistics in
Protecting Retirees’ Money: Fiduciary Duties and Other Laws Applicable to State Retirement Systems, Third Edition, by
Cynthia Moore of the
National Council on Teacher Retirement. The book is a few years old, but it contains a state-by-state analysis of fiduciary standards applicable to governmental plans, with appropriate citations, and I've found it an excellent starting point for research in the governmental plans area.
Extensive support for the concept that if the nonimpairment of benefits provisions apply to pension plans, they would affect cutbacks in future benefit accruals, is found in California law. The vesting concept has been developed and firmly embedded in California law through a long line of cases starting with
Kern v. City of Long Beach, 29 Cal.2d 848 (1947), with two of the more important of such cases being
Allen v. City of Long Beach, 45 Cal.2d 128 (1955) and
Betts v. Board of Administration, 21 Cal.3d 859 (1978).
In
Kern, it was decided that a public employee's pension constitutes an element of compensation, that a vested contractual right to pension benefits accrues upon acceptance of employment and that such a pension right may not be destroyed once vested without impairing a contractual obligation of the employing public entity.
Kern, supra, at 852-853.
In
Allen v. City of Long Beach, which is considered to be the landmark case in this area, the vesting concept was described as follows:
"An employee's vested contractual pension rights may be modified prior to retirement for the purpose of keeping a pension system flexible to permit adjustments in accord with changing conditions and at the same time maintain the integrity of the system. [Citations.] Such modifications must be reasonable, and it is for the courts to determine upon the facts of each case what constitutes a permissible change. To be sustainable as reasonable, alterations of employees' pension rights must bear some material relation to the theory of a pension system and its successful operation, and changes in a pension plan which result in disadvantage to employees should be accompanied by comparable new advantages. [Citations]. . ."
Allen, supra, at 131.
See also Carman v. Alvord, 31 Cal.3d 318 (1982) and
Miller v. State of California, 18 Cal.3d 808 (1977).
In
Betts, it was affirmed that vesting applies not only to benefits that are in effect when an employee's employment commences but also to improvements in benefits that occur during his or her service.
Betts, supra, at 866.
Betts also reaffirmed the holding in
Abbott v. City of Los Angeles, 50 Cal.2d 438 (1958), that the comparative analysis of disadvantages and compensating advantages in any modifications to a plan must focus on the particular employee or employees whose vested pension rights are involved.
Betts, supra at 864.
See also Olson v. Cory, 27 Cal.3d 532 (1980).
Because the law is so well developed in California, many other states have cited it as to cases arising in their own states. Thus, I would suggest starting with those cases and checking out citations to them in whatever state you are interested in.
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Employee benefits legal resource site
[This message has been edited by CVCalhoun (edited 09-24-1999).]