| ALASKA | HIO | PORTLAND, OR PORTLAND-HILLSBORO |
| ARIZONA | HII | LAKE HAVASU CITY |
| HAWAII | HI01 | KAUAI PRINCEVILLE |
| MINNESOTA | HIB | CHISHOLM-HIBBING |
| MISSOURI | HIG | HIGGINSVILLE INDUSTRIAL MUNI |
| NEW HAMPSHIRE | HIE | WHITEFIELD MOUNT WASHINGTON RGNL |
| OREGON | HIO_1 | PORTLAND-HILLSBORO |
| UTAH | HIF | HILL AFB |