Section Apply to Plan Years That Begin on or after January 1, 2012. * * * * * Department of Labor Occupational Safety and Health Administration Interpretation of Osha's Provisions for Feasible Administrative or Engineering Controls of Occupational Noise

(d) of this section to another interest crediting rate (the new rate) that satisfies the requirements of paragraph (d) of this section, the plan’s effective interest crediting rate is not in excess of a market rate of return for purposes of paragraph (d) of this section merely because the plan provides for the benefit of any participant who is benefiting under the plan (within the meaning of § 1.410(b)–3(a)) on the applicable amendment date to never be less than what it would be if the old rate had continued but without taking into account any principal credits (as defined in paragraph (d)(1)(ii)(D) of this section) after the applicable amendment date.