Section 4043.21 - Tax disqualification and Title I noncompliance(a)Reportable event. A reportable event occurs when the Secretary of the Treasury issues notice that a plan has ceased to be a plan described in section 4021(a)(2) of ERISA, or when the Secretary of Labor determines that a plan is not in compliance with title I of ERISA.(b)Waiver. Notice is waived for this event.