Designated Primary and Commercial Service Airports in Idaho, Oregon and Washington Covered by 24 CFR Part 51D CY 2013 Enplanements (As of 1/26/15) Attached is a revised list of designated primary and commercial service airports covered by 24 CFR Part 51D. A primary airport is one that serves at least .01 percent of all passengers enplaned at commercial service airports. Airports with scheduled service of 2,500 or more passengers enplaned are listed as ‘Other Commercial Service Airports.’ For a link directly to the Federal Aviation Administration’s data, please visit: http://www.faa.gov/airports_airtraffic/airports/planning_capacity/passenger_a llcargo_stats/passenger Please note that all military airports must be considered under HUD's regulations at 24 CFR 51(D); they are not included on this list. REGION/ AIRPORT STATE LOCATION AIRPORT NAME IDAHO Primary Airports Location Name Boise Boise Air Terminal - Gowen Field Hailey Friedman Memorial Idaho Falls Idaho Falls Regional Lewiston Lewiston-Nez Perce County Pocatello/Arbon Valley Pocatello Regional Twin Falls Joslin Field-Magic Valley Regional Other Commercial Service Airports None OREGON Primary Airports Location Name Eugene Mahlon Sweet Field Klamath Falls Klamath Falls Medford Rogue Valley International North Bend Southwest Oregon Regional Portland Portland International Redmond Roberts Field Other Commercial Service Airports Pendleton Eastern Oregon Regional WASHINGTON Primary Airports Bellingham Bellingham International Friday Harbor Friday Harbor Pasco Tri-Cities Pullman/Moscow, ID Pullman-Moscow Regional Seattle Boeing Field/King County-Intl Seattle Seattle-Tacoma International Spokane Spokane International Walla Walla Walla Walla Regional Wenatchee Pangborn Memorial Yakima Yakima Air Terminal WA Other Commercial Service Airports None .