A recent ruling by the US Court of Appeals for the Third Circuit serves provides a valuable reminder for multiemployer pension funds and contributing employers regarding ERISA’s withdrawal liability notice and demand requirements. Specifically, the case presents a recap of what it means for a notice and demand to be provided “as soon as practicable” under ERISA Section 4219(b)(1) and the interplay of that timing requirement with common defenses raised for withdrawal liability demands that are allegedly less than timely.