5 CFR § 591.225 - Which CPIs does OPM use?

---
identifier: "/us/cfr/t5/s591.225"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "5 CFR § 591.225 - Which CPIs does OPM use?"
title_number: 5
title_name: "Administrative Personnel"
section_number: "591.225"
section_name: "Which CPIs does OPM use?"
chapter_name: "OFFICE OF PERSONNEL MANAGEMENT"
subchapter_number: "B"
subchapter_name: "CIVIL SERVICE REGULATIONS"
part_number: "591"
part_name: "ALLOWANCES AND DIFFERENTIALS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
cfr_part: "591"
---


# 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.