For CSRS retirees:

(05/21/14) The 2015 CSRS retiree COLA is based on the third quarter (July, August, September) average CPI-W index in 2014 over the 2013 third quarter average. After the first quarter of 2014, the first quarter of the 2015 COLA adjustment period, the quarterly index has risen by 0.4%.

For FERS retirees:

(05/21/14) 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 first quarter of 2014, the first quarter of the 2015 COLA adjustment period, the quarterly index has risen by 0.4%.

For Social Security recipients:

(05/21/14) The 2015 Social Security COLA is based on the third quarter (July, August, September) average CPI-W index in 2014 over the 2013 third quarter average. After the After the first quarter of 2014, the second quarter of the 2015 COLA adjustment period, the quarterly index has risen by 0.4%.

via Pay | APWU.