Collectively bargained plans, etc.
Application of subsection (b)
Subsection (b) applies to—
a plan maintained pursuant to an agreement which the Secretary of Labor finds to be a collective-bargaining agreement between employee representatives and one or more employers, and
each trust which is a part of such plan.
General rule
If this subsection applies to a plan, notwithstanding any other provision of this title—
Participation
Discrimination, etc.
Exclusive benefit
Vesting
Funding
Liability for funding tax
For a plan year the liability under section 4971 of each employer who is a party to the collective bargaining agreement shall be determined in a reasonable manner not inconsistent with regulations prescribed by the Secretary—
first on the basis of their respective delinquencies in meeting required employer contributions under the plan, and
then on the basis of their respective liabilities for contributions under the plan.
For purposes of this subsection and section 4971(e), an employer’s withdrawal liability under part 1 of subtitle E of title IV of the Employee Retirement Income Security Act of 1974 shall not be treated as a liability for contributions under the plan.
Deduction limitations
Employees of labor unions
Plans covering a professional employee
Plans maintained by more than one employer
In the case of a plan maintained by more than one employer—
Participation
Exclusive benefit
Vesting
Funding
In general
Other plans
Liability for funding tax
For a plan year the liability under section 4971 of each employer who maintains the plan shall be determined in a reasonable manner not inconsistent with regulations prescribed by the Secretary—
first on the basis of their respective delinquencies in meeting required employer contributions under the plan, and
then on the basis of their respective liabilities for contributions under the plan.
Deduction limitations
In general
Other plans
In general
Special rule
Allocations
In general
Assets and liabilities of plan
CSEC plans
Notwithstanding any other provision of this section, in the case of a CSEC plan—