VOR equipment check for IFR operations

In plain English

To use VOR for IFR you must have checked its accuracy within the preceding 30 days. Acceptable checks include a VOT (±4°), a ground checkpoint (±4°), an airborne checkpoint (±6°), or a dual-VOR cross-check (within 4° of each other). Log the date, place, bearing error and your signature.

Key points

• 30-day VOR accuracy check required for IFR use.
• Tolerances: VOT/ground ±4°, airborne ±6°, dual-VOR within 4°.
• Record date, place, error and signature.

Common pitfalls

• Flying IFR on VOR with an out-of-date or undocumented check.

*This is a plain-English summary for study only. The official 14 CFR text on this page is controlling — always read the current regulation.*