Public pension plans, also referred to as governmental plans, are generally plans that provide retirement or deferred income to employees of the U.S. government, a state government or its political subdivision, or any agency or instrumentality of those governments. According to a 2010 GAO report, approximately 20 million employees and over 7 million retirees and survivors are covered by state and local government pension plans, typically through a traditional defined-benefit plan. Recently, questions have been raised about the funded status of many public pension plans, as it has been reported that many of these plans are facing substantial future funding shortfalls. Concerns have been raised that these liabilities could jeopardize the fiscal stability of some state and local governments. There is considerable debate over whether this is a problem that needs to be addressed and if so, the cause and the extent of public pension plan underfunding. While it has been reported that public pension funds experienced recent gains, some of the estimates have placed the combined unfunded liabilities anywhere from hundreds of billions of dollars to over $3 trillion. In an effort to address these issues, some legislators and others have argued to reform public pension plans and the benefits they offer. In 2011 alone, over 20 states introduced or passed legislation aimed to reduce or otherwise modify pension plan benefits for current or future retirees, and more proposals have been introduced this year. This report provides an overview of how public pension plans are regulated at the federal and state levels. It discusses selected legal issues that may arise if attempts are made to remedy or prevent public pension plan underfunding, in particular, by changing plan benefits. This report will also briefly address possible federal regulation of state and local public pension plans. Employment-based retirement benefits are governed at the federal level by two main laws, the Employee Retirement Income Security Act (ERISA) and the Internal Revenue Code. In general, these two laws address two types of pension plans: defined benefit and defined contribution plans. Under a defined benefit plan, an employee is promised a specified future benefit, traditionally an annuity beginning at retirement. Benefits often are based on average pay and years of service. To fund the plan, an employer makes contributions to the common pension fund that are actuarially expected to grow through investment to cover the promised benefits. Under the terms of the plan, employees may make contributions as well. Most public pension plans are traditional defined benefit plans. A defined contribution plan (e.g., a 401(k) plan) is one in which the contributions are specified, but not the benefits. A defined contribution plan (also called "an individual account" plan) is one that provides an individual account for each participant that accrues benefits based solely on the amount contributed to the account and any income, expenses, and investment gains or losses to the account. The employee bears the investment risk in a defined contribution plan. Some state and local governments maintain defined contribution plans, and there have been proposals in various states to switch from a defined benefit to a defined contribution plan. Enacted in 1974, ERISA provides a comprehensive federal scheme for the regulation of pension and other employee benefit plans offered by private-sector employers. While ERISA does not require an employer to offer employee benefits, it does mandate compliance with its provisions if such benefits are offered. Title I of ERISA imposes various federal standards aimed at protecting the interests of plan participants and beneficiaries, including reporting and disclosure, vesting, participation, funding, fiduciary duty, and civil enforcement requirements. Title IV of ERISA created a plan termination insurance program, under which pension benefits are paid to plan participants and beneficiaries up to a statutory maximum if the benefits cannot be paid by the employer. Public pension plans are generally exempt from these provisions of ERISA, but may be subject to federal regulation under the Internal Revenue Code. The Internal Revenue Code grants certain tax benefits to "qualified" retirement plans. Among these tax advantages, employer contributions to a qualified plan on behalf of its employees are tax deductible for the employer. In addition, qualified retirement plan participants do not pay tax on employer contributions or the benefits they accrue in the pension plan until the participant (or beneficiary) takes a distribution. Given that state and local governments do not pay federal taxes, the tax benefit for employer contributions is irrelevant to them. However, public pension plans must be qualified so that the plan participants can avoid paying taxes on their pension benefits until the benefits are actually received. In order to be a qualified plan under the Internal Revenue Code, pension plans must meet several requirements. Governmental plans, however, are only subject to a subset of the qualification requirements that private-sector pension plans must meet. In many cases, public pension plans are subject to different requirements under the Internal Revenue Code than private-sector plans, including certain less stringent pre-ERISA requirements for vesting and funding. Aside from the requirements set out in the Internal Revenue Code, public pension plans are primarily regulated under state statutes, local ordinances, and state constitutions. These laws typically address the basic features of public pension plans, including eligibility, contributions, and types of benefits provided, and the laws vary widely from jurisdiction to jurisdiction. While public pension plans have no guarantor of plan benefits, states generally have constitutional or statutory provisions that dictate how pension plans are to be funded, protected, managed, or governed. In evaluating whether pension plan benefits may be modified, requirements for benefit accrual and vesting are implicated. Under federal law, both ERISA and the Internal Revenue Code provide requirements for benefit accrual, which generally refers to the rate at which benefits are earned by a plan participant. Both federal laws prohibit private-sector pension plan amendments that eliminate or reduce benefits already accrued by plan participants. This prohibition is commonly referred to as the "anti-cutback rule." However, private-sector pension plans may be free to freeze accrued benefits, reduce the rate at which benefits will accrue in the future, or eliminate future benefit accruals altogether. In other words, under the anti-cutback rule, past benefit accruals are protected, but future benefits accruals can be modified. Governmental plans are exempt from the anti-cutback rule. Therefore, analysis of the changes that may be made to accrued benefits under a public plan is a state-by-state inquiry. While accrued benefit refers to the amount of benefits earned, vesting occurs under federal law when a plan participant's accrued benefit is considered to be non-forfeitable. ERISA and the Internal Revenue Code impose two general vesting requirements on private-sector defined benefit pension plans: one depending on age and one depending on length of service. Governmental plans are exempt from these federal vesting requirements. However, in order to be qualified, governmental plans must meet pre-ERISA vesting standards under the Internal Revenue Code, which include the requirement that upon plan termination or complete discontinuance of contributions, employees' rights to benefits accrued as of the date of the termination or discontinuance are non-forfeitable, but only to the extent that the benefits are funded. States may also impose additional vesting requirements for pension benefits, and these can vary by state. Recently, in an effort to alleviate pension plan underfunding and protect state and local government budgets, governors and legislators in several states have proposed and enacted various modifications to their pension plans. Over the past few years, almost two-thirds of states have made some form of benefit and/or contribution change to their plans (e.g., reducing benefit levels, requiring higher employee contributions, or amending age and service requirements to lengthen the accumulation and shorten the distribution period of pension benefits). While the majority of changes are directed at future participants and/or benefit accruals, some of the changes affect current employees and retirees. Although states may not face obstacles in changing the pension benefits available for new employees, the issue is not as clear with respect to existing ones. As discussed below, certain legal parameters may affect the ability of state and local governments to amend their pension plans. These parameters vary by state and depend on each state's laws and constitutional provisions governing its retirement system, what these laws provide with respect to the protection of an individual's pension benefits, and when any right to a pension benefit attaches. Courts have conceptualized the legislative modification of public employee pension plan benefits in different ways. Historically, most courts viewed public pensions as gratuities that could be amended at any time. Although it may not be controlling in the interpretation of a state law, the Supreme Court has historically found that statutes providing retirement benefits to pensioners create a mere "expectancy" that may be modified, revoked, or suspended by the authority granting it through subsequent legislation. However, this view has now been abandoned in most states, and public employee pension benefits are generally afforded greater protection under current state and constitutional law. This is, at least in part, because many courts now characterize public plan pensions as deferred compensation--that an employee is entitled to these benefits for work that has already been performed. In rejecting the gratuity approach to public pensions, many state courts have found that based on common law, state statute, or state constitution, public pension benefit plans create a contract between the state and plan participant. If a contract is found to exist between the state or local government and pension plan participants, then this can limit the ability of a state to amend its pension plans. In some states, there is a specific constitutional provision addressing protection for public pensions as contractual obligations. At least six states have a constitutional provision that, in general, explicitly provides that membership in, or accrued benefits from, a state's retirement system creates a contract between the state and its employees that cannot be impaired. One lawsuit demonstrating the effect of this type of pension protection is McDermott v. Regan . In this case the New York legislature, in response to a state fiscal crisis, changed the funding method for the state's retirement systems. The change had the effect of reducing the government's contribution to the system. In finding that the state law violated the New York constitution, the court explained that the amendment depleted money in the fund and arguably destabilized the retirement system. Thus, it was an unconstitutional impairment of the pension funds. In the absence of a state constitutional provision expressly prohibiting the modification of pension benefits, a state's statutes or case law may be found to provide contractual rights for state and local government employees to their pension benefits. As noted above, if a contract is found to exist between the state or local government and pension plan participants, then this can limit the ability of a state to amend its pension plans. A public employee's contractual right to an unaltered pension benefit may be protected under the Contract Clause of the U.S. Constitution or an analogous state constitutional provision. The Federal Contract Clause provides, "No state shall ... pass any ... Law impairing the Obligation of Contracts." Although the language of the Contract Clause appears straightforward, its prohibition against state impairment of contracts is not absolute but rather "must be accommodated to the inherent police power of the state 'to safeguard the vital interests of its people.'" The Contract Clause applies to contracts between private parties, as well as those where the state is a party to the contract. However, in general, instances where the state is impairing a contract for its own benefit invite more judicial scrutiny. Based on Supreme Court jurisprudence, courts typically evaluate whether a state law violates the Contract Clause under a multi-pronged test. With respect to a public contracts, as a preliminary matter, courts may look at whether there is a contractual obligation that has been impaired. In order to determine whether a contractual relationship exists, a court may look to legislative intent to create a contract between the state and a private party. As the Supreme Court has explained, In determining whether a law tenders a contract to a citizen it is of first importance to examine the language of the statute. If it provides for the execution of a written contract on behalf of the state the case for an obligation binding upon the state is clear.... The presumption is that such a law is not intended to create private contractual or vested rights but merely declares a policy to be pursued until the legislature shall ordain otherwise. He who asserts the creation of a contract with the state in such a case has the burden of overcoming the presumption. State statutes that establish retirement plans generally do not address whether a contract is created; thus, ascertaining whether a contract exists for a public plan pensioner can, in some cases, be difficult. However, if it is established that a contract exists, one must then ascertain whether a plaintiff's contractual rights are "substantially impaired." Factors that courts have taken into account in determining whether a substantial impairment exists include whether a statute applies prospectively, or retroactively; disrupts a party's "reasonable expectations" regarding an agreement; or "alters its terms, imposes new conditions, or lessens [a contract's] value." In the context of public pensions, benefit formula changes, changes in plan funding sources or methodology, and the elimination of cost of living supplement payments have all been found by courts in certain instances to be substantial impairments of the pension contract. But, in general, state law amendments that were not anticipated to have an effect on pension benefits or on employer rights and responsibilities may not be considered impairments. If a substantial impairment exists, however, the state law may still be constitutional if "it is reasonable and necessary to serve an important public purpose." This rule ensures that in impairing a contract, the state is protecting the broad public interest, rather than its own self-interest. As the Supreme Court has explained with respect to the impairment of public contracts, reasonableness must be considered "in light of the surrounding circumstances." Necessity depends upon two considerations: first, whether the impairment was essential or whether a less "drastic modification" was available, and also whether a state could have adopted an alternative means to bring about the desired end without impairing contract obligations. As the Supreme Court noted in U.S. v . New Jersey , "a State is not completely free to consider impairing the obligations of its own contracts on a par with other policy alternatives. Similarly, a State is not free to impose a drastic impairment when an evident and more moderate course would serve its purposes equally well." While some courts have found that a state's desire to reduce spending and avoid financial crisis is an important public purpose under which a modification of a contractual right is acceptable under the Contract Clause, others have found to the contrary. In addition, a number of state courts, such as in California, permit reasonable modifications to an individual's pension benefits. However, "the modification must bear some material relationship to the purpose of the pension system and its successful operation; and any disadvantage to employees must be accompanied by comparable new advantages" (e.g., an increased pension amount). Thus, as explained by one commentator, the idea is that public employees are not entitled to any particular terms of a pension, but of the substance of the benefit which they could reasonably expect to receive. It should be noted that courts may reach varying conclusions as to whether a more financially sound pension plan is a comparable advantage that may accompany a modification of pension benefits. While states that protect public pensions under contract principles typically evaluate a case under the legal standard discussed above, they reach varying conclusions based on when the contract is deemed to be formed, and what terms and conditions the contract includes. While courts generally find that the pension benefits of individuals who have already retired may not be diminished or impaired, this outcome is not as clear for current employees. The ability of states to modify their pension plans for current employees varies depending upon when a contract is deemed to exist, and this varies from state to state. For example, in some states, courts have held that an employee's right to a pension cannot be changed in any way that reduced the benefit that would be payable upon the day of hire or the first day the employee could participate in the plan. This view entitles plan participants to the most generous amount of protection for their pension benefits, as employees have a right to accrue benefits in the future. States may, however, alter the benefits available to new hires. In other states, reductions in pension plan benefits could be prohibited when, under the terms of a state statute, a participant is eligible to receive a pension (e.g., the employee has fulfilled the plan's service requirement). This approach is in line with federal requirements for private sector pension benefits. Under this view, retirement benefits must be provided for service already performed, but prospective plan modifications may still be acceptable. It is also possible that based on interpretation of a state statute, contractual rights to a pension take effect at other times. For example, interpreting an Ohio statute, one court found that the right to a pension benefit attached at retirement. Despite the variation in when a contractual right to a public plan pension benefit begins, as noted above, state courts generally find that the benefits of individuals who have already retired may not be diminished or impaired. However, modifications affecting post-retirement benefits have recently been challenged by retired state workers. For example, litigation in Minnesota, North Dakota, and Colorado was initiated based on adjustments that the state legislatures made to post-retirement cost of living adjustments (COLA) in an attempt to address pension plan underfunding. Plaintiffs have claimed, among other things, that they have a contractual right to a certain level of future post-retirement increases. On the other hand, the state defendants have argued that nothing supports the idea that the public employees are entitled to a specific cost of living adjustment formula. So far, these plaintiffs' claims in the Colorado and Minnesota cases have been dismissed by lower courts, finding no contractual right to a specific COLA level. In order to address the issue of public pension plan underfunding, some have called for federal action. In the past, there have been efforts to regulate public pension plans similar to ERISA. In particular, following enactment of ERISA, various proposals were introduced that would have required public plans to meet various federal standards, such as reporting, disclosure, and fiduciary duty requirements. Legislative history indicates that Congress intentionally exempted these plans from ERISA for various reasons, most of which center around the differences inherent in regulating a private pension plan versus one sponsored by a state or local government. Because of these differences, it was concluded that additional data and study were necessary before attempting to regulate public plans. Federalism concerns were also raised, based on the idea that regulating state and local pension plans would constitute impermissible federal interference in the affairs of state and local government. However, the legal landscape has changed due to Supreme Court decisions issued after ERISA's enactment in 1974. While it appears that to date no proposals have been introduced in the 112 th Congress to comprehensively regulate public pension plans, there had been discussion of possible federal legislation to allow states to declare bankruptcy, something that states cannot currently do, in order to avoid or reduce certain financial obligations, such as pension obligations. Another proposal addressing public pension plans, the Public Employee Pension Transparency Act, would require public pension plan sponsors to file various plan financial data with the Treasury Secretary, including plan assets at fair market value and plan liabilities at an interest rate based on the U.S. Treasury obligation yield curve. The bonds issued by governmental entities that did not comply with the disclosure requirements would lose their federal tax exemption. Among other things, the legislation also states that the federal government would not be liable for any obligation related to a shortfall in any public pension plan.

Summary:
Controversy has arisen over the funded status of some state and local government pension plans. It has been reported that several of these plans have not fully funded their future obligations and they could face substantial future shortfalls. While there is considerable debate over whether this is a problem that needs to be addressed, and if so, the extent and the possible causes of these shortfalls, some estimates have placed the combined unfunded liabilities anywhere from hundreds of billions of dollars to over $3 trillion. Governments facing investment losses combined with lower revenues are looking at ways to address these shortfalls and protect their fiscal stability. State governors and legislators in several states have proposed and enacted various modifications to their pension plans. There have been calls for modification of federal, state, and local laws affecting these pension plans and the benefits provided to participants and beneficiaries. This report provides an overview of how public pension plans are regulated at the federal and state levels, discusses selected legal issues that may arise if attempts are made to remedy or prevent public pension plan underfunding by modifying public pension plan benefits, and addresses possible federal regulation of state and local public pension plans.