Flying a small unmanned aircraft system (sUAS) after dark is one of the most common operations that commercial drone pilots want to add to their repertoire — think real estate twilight shots, film productions, search-and-rescue missions, and infrastructure inspections. Under Title 14 of the Code of Federal Regulations (14 CFR) Part 107, night operations are permitted but come with specific equipment requirements and, in some circumstances, waiver considerations that every Remote Pilot Certificate holder must understand thoroughly before launching after civil twilight.
This article walks you through exactly what Part 107 says about night operations, the lighting requirements that make them legal, the waiver process for operations that push beyond standard rules, and the practical judgment calls you need to make as pilot in command. Whether you are studying for the FAA Aeronautical Knowledge Test or preparing for real-world night flights, mastering this material is essential.
Defining Night Under Part 107
Before you can comply with night rules, you need to know precisely when "night" begins and ends. Part 107 defines night as the time between the end of evening civil twilight and the beginning of morning civil twilight. Civil twilight is not the same as sunset or sunrise. Evening civil twilight ends when the center of the sun is 6 degrees below the horizon after sunset; morning civil twilight begins when the center of the sun reaches 6 degrees below the horizon before sunrise.
In practical terms, civil twilight typically extends roughly 30 minutes after official sunset and 30 minutes before official sunrise, though the exact duration varies by latitude and time of year. The FAA publishes civil twilight times, and pilots can also find them in the Aeronautical Information Manual (AIM) or via official sunset/twilight calculators. Knowing the exact end of civil twilight at your specific location on the day of your flight is a pre-flight planning requirement — not an approximation to be guessed.
The Core Night Operations Rule
Prior to a 2021 FAA rulemaking update, Part 107 required a waiver for any night operation. That changed significantly. The FAA amended Part 107 so that night operations are now permitted without a waiver, provided the remote pilot meets all applicable requirements. This is a commonly tested distinction: you do NOT need a waiver simply to fly at night under Part 107 — but you absolutely must comply with the anti-collision lighting requirement.
The key regulatory provision is found in 14 CFR 107.29. It states that during night operations, the sUAS must be equipped with anti-collision lighting that is visible for at least 3 statute miles and has a flash rate sufficient to avoid a collision. The remote pilot must be able to see that lighting throughout the operation. This is not optional equipment — it is a hard regulatory requirement for every night flight conducted under Part 107 without a waiver.
Anti-Collision Lighting Requirements in Detail
The anti-collision light requirement deserves close attention because it is a favorite topic on the FAA knowledge test. Here is what the rule demands:
- Visibility distance: The light must be visible for a minimum of 3 statute miles. This ensures that manned aircraft in the vicinity can detect the drone.
- Flash rate: The lighting must flash at a rate adequate to prevent mid-air collision. The FAA does not specify a precise flashes-per-minute number in Part 107 itself, but the intent is that the strobing or flashing pattern is clearly distinguishable as an aircraft and perceptible to pilots of manned aircraft at the required distance.
- Remote pilot visibility: The remote pilot in command (RPIC) must be able to maintain awareness of where the aircraft is. While Part 107 does not require that the RPIC see the aircraft's exact position at all times the way visual line of sight (VLOS) does during daylight, the anti-collision light supports the RPIC's situational awareness during the flight.
- Positioning: Many commercially available drone anti-collision lights are designed to be mounted to the top or belly of the aircraft to maximize omnidirectional visibility.
It is worth noting that many consumer drones come with navigation lights (position lights showing red/green/white) but these are often not bright enough or do not flash in a manner that satisfies the 3-statute-mile requirement. Remote pilots should verify their lighting system meets the regulatory standard before conducting night operations — relying on standard indicator lights is a common and dangerous mistake.
Visual Line of Sight at Night
Part 107's visual line of sight requirement does not disappear at night. The RPIC and any required visual observer must still be able to see the sUAS throughout the operation. At night, maintaining unaided visual contact with a small drone can be genuinely difficult. The anti-collision lighting is the primary tool for satisfying this requirement in low-light conditions, which is precisely why the 3-statute-mile brightness standard exists.
Pilots should also understand that human vision changes at night. The eye's foveal (central) vision is less effective in darkness, while peripheral (off-center) vision picks up light more effectively at night — a concept called off-center viewing that is well established in aviation physiology. Practically, this means that during a night drone flight, you may actually see the aircraft's lights more clearly when looking slightly to one side of the aircraft rather than directly at it. This is not unique to drone flying — manned aircraft pilots are taught the same technique for spotting other aircraft at night.
Why Night Operations Matter — Safety and Practical Considerations
Night operations introduce hazards that simply don't exist in full daylight. Reduced ambient light makes it harder to judge the aircraft's altitude, distance, and orientation. Obstacles such as power lines, towers, trees, and terrain features that are easily spotted in daylight become nearly invisible. The RPIC's own vision degrades, and fatigue effects are often more pronounced late in the evening.
Beyond the pilot's own physiology, manned aircraft operating at lower altitudes — such as helicopters on medical flights, agricultural aircraft returning from late-season work, or aircraft in the traffic pattern — may be harder to hear or see in time to take evasive action. The 3-statute-mile lighting requirement is designed to address this collision risk by giving manned aircraft crews maximum opportunity to spot a sUAS before a conflict occurs.
Waivers for Night Operations Beyond Standard Rules
Even though Part 107 now allows night operations without a waiver (given proper lighting), there are scenarios where a waiver remains necessary. If a proposed night operation would also deviate from another Part 107 rule — for example, flying beyond visual line of sight at night, operating over people at night, or flying from a moving vehicle at night — then a waiver addressing those specific rule deviations is required.
Waivers are requested through the FAA's DroneZone portal. The applicant must provide a detailed safety case explaining: the specific rule(s) being waived, the operational environment, risk mitigation strategies, crew qualifications, equipment specifications (including lighting), and contingency procedures. The FAA evaluates waiver requests on a case-by-case basis and may take weeks to months to process complex applications. There is no fee, but the burden of demonstrating safety is entirely on the applicant.
Key Numbers and Rules
- Night defined: End of evening civil twilight to beginning of morning civil twilight (roughly 30 min after sunset to 30 min before sunrise, varies by location and date).
- Anti-collision light visibility: Minimum 3 statute miles.
- Waiver required? No — for standard night operations with proper lighting. Yes — if any other Part 107 rule is also being deviated from during the night flight.
- Regulatory citation: 14 CFR 107.29 (Operation at night).
- VLOS requirement: Still fully in effect at night; anti-collision lighting is how the RPIC maintains awareness of the aircraft's position.
- Knowledge test requirement: Remote pilot certificate applicants must pass an aeronautical knowledge test that includes night operations questions.
Common Test Traps
- Confusing sunset with end of civil twilight: The FAA test frequently asks about night operations timing. Remember that civil twilight ends approximately 30 minutes after sunset — flying right at sunset is NOT a night operation, but flying 35 minutes after sunset almost certainly is. Always look up the actual civil twilight time for your location.
- Assuming a waiver is always required at night: This was true before the 2021 rule change. Under current Part 107, a waiver is NOT required solely because it is nighttime — as long as you have compliant anti-collision lighting and follow all other rules.
- Thinking any drone light satisfies the requirement: Standard navigation or indicator lights on a drone do not automatically meet the 3-statute-mile visibility standard. The RPIC must verify the lighting system's actual output meets regulatory minimums.
- Forgetting VLOS still applies: Some candidates mistakenly believe that because it is dark, visual line of sight is effectively waived. It is not — the anti-collision light is how VLOS compliance is maintained at night.
- Misidentifying civil twilight as the same at all locations: The duration of civil twilight changes with latitude and season. A time that is still civil twilight in one city may already be night at a more northerly or southerly location on the same calendar date. Always use location-specific data.