Does Taft-Hartley "carve out" work to protect plans?

In some instances, state legislatures attempt to expressly “carve out” ERISA plans, thus implying that if legislation doesn’t contain the “carve out” language ERISA plans are included. We believe that such efforts, if implemented, would serve to dangerously erode the scope of ERISA preemption with devastating consequences to unions and other ERISA plan sponsors of self-insured health and retirement plans.