CFR /  Title 5  /  Part 591  /  Sec. 591.225 Which CPIs does OPM use?

OPM uses the following CPIs:

(a) For the Washington, DC, area--the BLS Consumer Price Index, All Urban Consumers (CPI-U);

(b) For all COLA areas in the State of Alaska--the BLS CPI-U for Anchorage, AK;

(c) For all COLA areas in the State of Hawaii and for Guam and the CNMI--the BLS CPI-U for Honolulu, HI; and

(d) For Puerto Rico and the U.S. Virgin Islands--the Puerto Rico CPI as produced by the Puerto Rico Department of Work and Human Resources.