Employee benefits are such things as pensions, life insurance benefits,
disability insurance benefits, health benefits and the like. If these
benefits are obtained through a "Plan" created by an employer
or an employee organization (like a labor union) then, with some exceptions,
ERISA applies. This means that federal law--ERISA--governs whether
a worker is entitled to the benefits, what rights the worker has to
obtain information, and what remedies the worker has if his (or her)
claim for benefits is denied.
When ERISA was first passed, it was believed
to apply just to funded plans. Funded plans are those where
the employer (or employee organization) maintains a fund, with real
assets, to pay benefits. However the Supreme Court has since
determined that ERISA applied to plans where the benefits are
provided through a policy of insurance, or an HMO. That means
that life, medical and disability benefits will (generally) be covered
by ERISA even where the "Plan" is just a group insurance policy, and
the "ERISA fiduciary" is just the insurance company's claims
adjuster.
It is difficult to overstate the impact of ERISA
application. ERISA essentially sweeps away state laws which
would normally govern whether there was a right to benefits.
ERISA replaces these state laws with a comprehensive set of Federal
regulations. This includes remedies; state laws involving breaches
of insurance contract and bad faith do not apply to ERISA plans.
Instead, there is a federal remedy, available in the federal courts.