The Internal Revenue Service has updated the static mortality tables for the years 2009 through 2013.

Pension plan sponsors and administrators can use the tables to calculate funding targets and other items, IRS officials write in IRS Notice 2008-85.

The notice also includes a modified “unisex” version of the mortality tables for use in determining minimum present value under the rules governing some distributions with annuity starting dates that occur during stability periods beginning in calendar years 2009 through 2013, officials say.