Unfunded vested benefits
Unfunded vested benefits means, as described in section 4213 of ERISA, the amount by which the value of nonforfeitable benefits under the plan exceeds the value of the assets of the plan.
Source
29 CFR § 4206.2
Scoping language
The following are defined in 4001.2 of this chapter: Code, employer, ERISA, multiemployer plan, PBGC, plan, and plan year.