As further evidence of regulators' heighted interest in retirement income solutions, on February 3, 2011, U.S. Senators, Bingaman (D-NM), Isakson (R-GA) and Kohl (D-WI) reintroduced the Lifetime Income Disclosure Act, Senate Bill No. 267 ("SB267"), which would require defined contribution plan sponsors subject to ERISA to provide an annual "lifetime income disclosure" to each participant, outlining the monthly annuity payment the participant could expect to receive if the participant's total account balance was used to buy a life annuity that commenced payments at the plan's normal retirement age, referred to as the " lifetime income stream equivalent of the total benefits accrued." Under SB267, within a year of enactment, the Department of Labor (the "DOL") must provide assumptions that plan administrators can use to convert a participant's lump sum benefit amount into both single life annuity and qualified joint and survivor annuity equivalents, issue related interim final rules and develop a "model disclosure" for the benefit of plan sponsors. Plans offering lifetime income investment options to participants can use the amounts payable under such options as the applicable annuity equivalent. Plan sponsors, or the applicable plan administrator, must provide the proposed disclosure one year after the DOL has issued all required deliverables. See also Senator Bingaman's "Background on Lifetime Disclosure Act."