For FERS Retirees:

The 2015 FERS retiree COLA is based on the increase in the third quarter average of the CPI-W index in 2014 over the 2013 third quarter average. However, if the CPI-W quarterly average increases three percent or more, the COLA is the increase less one percent. If the quarterly average increase is between two percent and three percent, the COLA is two percent. If the quarterly average increase is two percent or less, the COLA is equal to the quarterly average increase. After the fourth quarter of 2013, the first quarter of the 2015 COLA adjustment period, the quarterly index has fallen by 0.4%.