| Name | Data Type | Definition | |
|---|---|---|---|
| PT | string | The holding pattern is used as a procedure turn. (Commonly referred to as Holding in Lieu of Procedure Turn.) | |
| ARRIVAL | string | Arrival holding. A holding pattern provided at any Initial Approach Fix (IAF) and should be aligned with the initial segment track. | |
| MISSED_APPROACH | string | Missed Approach Holding. A holding pattern provided at the end of the missed approach | |
| CLIMB | string | A holding pattern used in conjunction with climb and hold instructions. | |
| ATC | string | A holding pattern defined specifically for ATC use. | |
| OTHER | string | Other |