Unmanned Aircraft Geometric Altitude Accuracy

Verified from official sources
14 CFR § 89.320Version 1Effective -Verified 22 August 2026

In plain language

The remote ID system must report your drone's altitude with a vertical accuracy of 150 feet or better, 95% of the time.

Requirement as structured

The reported geometric altitude of the unmanned aircraft must be accurate to within 150 feet of the true geometric altitude, with 95 percent probability.

Original regulatory text

The reported geometric altitude of the unmanned aircraft must be accurate to within 150 feet of the true geometric altitude, with 95 percent probability.

Applies when

country
United States
equipment
remote identification broadcast module
operation
Remote identification of unmanned aircraft
regulatory area
remote_id
aircraft category
unmanned aircraft required to be registered
regulatory category
General