Operations Over Moving Vehicles
A person sitting inside a moving car is still a human being who could be struck by a falling aircraft, so 14 CFR Part 107 Subpart D adds a dedicated rule, 14 CFR 107.145, specifically for operating over a human being located inside a moving vehicle. This rule does not replace the four categories covered in the previous four lessons — it layers additional conditions on top of whichever category the aircraft already qualifies for. This closing lesson of the module covers exactly how that layering works and what the added conditions require.
The base rule: operating over a human being inside a moving vehicle
14 CFR 107.145 states that no person may operate a small unmanned aircraft over a human being located inside a moving vehicle unless specific conditions are met. This is a distinct concern from operating over a pedestrian: a moving vehicle adds its own hazards, since a startled driver or a falling aircraft striking a moving vehicle's windshield could contribute to a traffic incident well beyond the immediate impact zone of the aircraft itself. The rule applies regardless of whether the vehicle is a car, truck, bus, or similar conveyance carrying a person.
Step one: the aircraft must already meet its applicable category
Under 107.145(a), before any of the added moving-vehicle-specific conditions even come into play, the operation must comply with whichever category already governs that aircraft — Category 1 (107.110), Category 2 (107.115), Category 3 (107.125), or Category 4 (107.140). This is the layering principle at the heart of this lesson: 107.145 does not create a fifth, independent category. A remote pilot first establishes which of the four categories the aircraft qualifies for, exactly as covered in the previous four lessons, and only then applies the additional conditions below.
Step two, for Categories 1 through 3: closed-site notice, or no sustained flight
107.145(b) gives Category 1, 2, and 3 aircraft two possible paths to legally operate over a human being inside a moving vehicle. The first path: the aircraft remains within or over a closed- or restricted-access site, and all human beings located inside a moving vehicle within that site must be on notice that a small unmanned aircraft may fly over them — the same closed-site-with-notice concept used in the Category 3 open-air-assembly restriction, applied here specifically to occupants of vehicles. The second path, usable outside such a site: the aircraft must not maintain sustained flight over moving vehicles. A brief, transient overflight of traffic on a public road is treated differently from hovering or repeatedly circling directly above a lane of moving cars.
- Closed/restricted-access site with notice: All occupants of vehicles inside the site must be on notice that overflight may occur.
- No sustained flight (outside such a site): Brief, transient overflight of moving vehicles is treated differently from sustained flight directly above them.
Step two, for Category 4: airworthiness certificate and Flight Manual limitations
107.145(c) sets a separate path specific to Category 4: the aircraft must have an airworthiness certificate issued under 14 CFR Part 21, and it must be operated in accordance with the operating limitations specified in its approved Flight Manual, and that Flight Manual's limitations must not prohibit operations over human beings located inside moving vehicles. This mirrors the general Category 4 structure from the previous lesson — the aircraft's own certificated Flight Manual, rather than a fixed rule like "no sustained flight," is what defines what is and is not permitted for that specific aircraft over moving vehicles.
Operations over moving vehicles for Categories 1–3: the closed/restricted-access-site path versus the no-sustained-flight path.
View LargerScenario one: monitoring public road traffic for a news client
A remote pilot is contracted to capture brief aerial footage of highway traffic conditions for a local news segment, using a Category 1-eligible aircraft. The flight plan calls for the aircraft to transit over several lanes of moving traffic briefly, capturing footage while continuing to move along the route rather than stopping to hover over any single stretch of road. Because the aircraft already meets Category 1 under 107.110, and the operation does not maintain sustained flight over the moving vehicles, this satisfies the second path of 107.145(b) without needing a closed site.
Scenario two: filming a stunt-driving sequence at a private test track
A production company hires a remote pilot to film a stunt-driving sequence at a private, fenced test track using a Category 3-declared aircraft, where extended, sustained overhead shots are needed as the vehicles perform maneuvers. The test track qualifies as a closed- or restricted-access site, and every driver has been briefed and signed acknowledgment that aerial overflight will occur throughout filming, satisfying the notice requirement. Because the site qualifies under 107.145(b)'s first path, sustained flight over the moving vehicles on the track is permitted, something that would not be legal over an ordinary public road with no site control and no notice given to passing drivers.
| Aircraft category | Base requirement | Added moving-vehicle condition | Source |
|---|---|---|---|
| Category 1, 2, or 3 | Must already meet that category's requirements (107.110, 107.115, or 107.125) | Closed/restricted-access site with notice to vehicle occupants, OR no sustained flight over moving vehicles | 14 CFR 107.145(a), (b) |
| Category 4 | Must already meet 107.140 (airworthiness certificate) | Approved Flight Manual limitations that do not prohibit operations over people inside moving vehicles | 14 CFR 107.145(a), (c) |
Checking moving-vehicle compliance before a flight
Work through the aircraft's base category first, then apply the moving-vehicle-specific condition — skipping the first step is the most common source of error here.
Confirm which category (1 through 4) the aircraft already qualifies for
Use the same verification steps covered in Lessons B through E — weight and rotating-parts test for Category 1, declaration of compliance and label for Category 2 or 3, or airworthiness certificate for Category 4.
For Category 1, 2, or 3: decide between the closed-site path and the no-sustained-flight path
If the operation occurs on a closed- or restricted-access site, confirm every vehicle occupant within the site is on notice that overflight may occur. If not, plan the flight so it does not maintain sustained flight directly over moving vehicles.
For Category 4: review the approved Flight Manual for this specific condition
Confirm the aircraft's Flight Manual limitations do not prohibit operations over human beings located inside moving vehicles, in addition to the general Category 4 requirements already reviewed.
Reassess if the operation also involves an open-air assembly
A busy public road with heavy pedestrian and vehicle traffic can trigger both 107.145 and the applicable category's open-air-assembly restriction at the same time — both sets of conditions must be satisfied together, not just one.
| Mistake | Why it happens | Correct understanding | Regulation / source |
|---|---|---|---|
| Treating 107.145 as a fifth, independent operating category | It has its own dedicated section number and its own conditions, which makes it look like a standalone rule | 107.145 layers additional conditions on top of whichever of the four existing categories the aircraft already meets — it is not a substitute for Category 1 through 4 eligibility | 14 CFR 107.145(a) |
| Assuming a Category 1 or 2 aircraft that is cleared to fly over pedestrians is automatically cleared to fly over moving vehicles the same way | Both rules apply to "operations over people," inviting the assumption that meeting one automatically satisfies the other | Moving vehicles carry their own added condition under 107.145(b) — a closed site with notice, or no sustained flight — separate from the general operating-over-people restrictions in each category | 14 CFR 107.145(b) |
| Believing "no sustained flight" means any brief pass over traffic is automatically legal with no other consideration | The rule's plain language focuses specifically on sustained flight, inviting the assumption that non-sustained flight has no other conditions | The aircraft must still meet its underlying category requirements under 107.145(a), and other restrictions such as the open-air-assembly rule can still apply if the road is also crowded with pedestrians | 14 CFR 107.145(a), (b) |
| Assuming the closed-site notice requirement only applies to pedestrians on foot, not people inside vehicles | The Category 3 open-air-assembly notice concept is easy to recall only in its pedestrian context | 107.145(b)'s notice requirement specifically covers human beings located inside a moving vehicle within the closed/restricted-access site, not just pedestrians on foot | 14 CFR 107.145(b) |
Does 107.145 replace the need to qualify for Category 1 through 4?
No. 107.145 requires the operation to already comply with the applicable category (1 through 4) first, and then adds further conditions specific to operating over a human being inside a moving vehicle.
Can a Category 1, 2, or 3 aircraft fly over cars on a public road?
Yes, as long as it does not maintain sustained flight over the moving vehicles. Brief, transient overflight of moving traffic is treated differently from hovering or repeatedly circling directly above it, which would require operating within a closed- or restricted-access site with notice instead.
Does Category 4 use the same "no sustained flight" rule for moving vehicles as Categories 1 through 3?
No. Category 4 instead follows whatever operating limitations are specified in that aircraft's approved Flight Manual, which must not prohibit operations over human beings located inside moving vehicles.
Test Your Knowledge
Answer the questions below to check your understanding. Every answer can be found in the lesson above.