. "In addition, until the effective date of further guidance, taxpayers may continue to rely on the change in family status rules in the existing proposed regulations (at Sec. 1.125-2, Q&A-6(c)) with respect to benefits other than accident and health coverage and group-term life insurance coverage, and on the cost or coverage change rules in the existing proposed regulations (at Sec. 1.125-2, Q&A-6(b" . . . .