4-5-2
Flight Direction
JO 7110.65BB, Change 3, effective July 9, 2026 · Official text on faa.gov
Clear aircraft at altitudes according to the TBL 4-5-1.
| Aircraft Operating | On course degrees magnetic | Assign | Examples |
|---|---|---|---|
| Below 3,000 feet above surface | Any course | Any altitude | |
| At and below FL 410 | 0 through 179 | Odd cardinal altitude or flight levels at intervals of 2,000 feet | 3,000, 5,000, FL 310, FL 330 |
| 180 through 359 | Even cardinal altitude or flight levels at intervals of 2,000 feet | 4,000, 6,000, FL 320, FL 340 | |
| Above FL 410 | 0 through 179 | Odd cardinal flight levels at intervals of 4,000 feet beginning with FL 450 | FL 450, FL 490, FL 530 |
| 180 through 359 | Odd cardinal flight levels at intervals of 4,000 feet beginning with FL 430 | FL 430, FL 470, FL 510 | |
| One way routes (except in composite systems) | Any course | Any cardinal altitude or flight level below FL 410 or any odd cardinal flight level above FL 410 | FL 270, FL 280, FL 290, FL 300, FL 310, FL 410, FL 430, FL 450 |
| Within an ALTRV | Any course | Any altitude or flight level | |
| In aerial refueling tracks and anchors | Any course | Altitude blocks as requested. Any altitude or flight level | 050B080, FL 180B220, FL 280B310 |