One of the most consequential regulatory requirements a remote pilot certificate holder faces is the rule governing where an Unmanned Aircraft System (UAS) may legally fly. Under Title 14 of the Code of Federal Regulations, Part 107, a remote pilot cannot simply launch a drone anywhere in the National Airspace System (NAS) without first understanding the class of airspace overhead and, in many cases, obtaining explicit permission from the FAA. This article breaks down exactly how airspace authorization works, what the Low Altitude Authorization and Notification Capability (LAANC) system is, and how you can use both to operate legally and safely.
The FAA's core principle is that all airspace belongs to the public, is managed for the safety of all aircraft, and requires coordination whenever a UAS operation might affect manned aviation. Part 107 implements this principle with a tiered set of requirements that depend on the class of airspace you intend to enter.
Airspace Classes and the Part 107 Framework
The NAS is divided into several classes of airspace — A, B, C, D, E, and G — each carrying different communication, equipment, and clearance requirements. For manned pilots these distinctions are well-established; for UAS operators, Part 107 draws one critical dividing line: controlled versus uncontrolled airspace.
Class G (uncontrolled) airspace generally extends from the surface up to 700 feet or 1,200 feet AGL, depending on the location, before giving way to Class E. In Class G airspace, a Part 107 remote pilot may operate without any prior FAA authorization, provided all other Part 107 rules are followed — including the 400-foot AGL ceiling and visual line of sight (VLOS) requirements. No contact with ATC is required.
Controlled airspace — Classes B, C, D, and E that extends to the surface — is a different story. Section 107.41 of Part 107 prohibits UAS operations in these airspace classes without prior authorization from the FAA. This is because controlled airspace hosts manned aircraft operating under ATC guidance, and an uncoordinated drone could create a collision hazard or disrupt traffic flow. The key phrase to remember for the knowledge test is that authorization is required before the operation begins, not after the fact.
Class E airspace that begins at 700 feet or 1,200 feet AGL — rather than at the surface — does not require authorization for drone flight below that floor, because a drone operating at or below 400 feet AGL would remain in uncontrolled (Class G) airspace beneath it.
How Authorization Works: LAANC and DroneZone
Historically, remote pilots had to submit an airspace authorization request through the FAA's online portal (FAA DroneZone) and wait days or even weeks for a response. The FAA recognized this was impractical and created LAANC — the Low Altitude Authorization and Notification Capability. LAANC is a data-sharing system that connects FAA air traffic facilities with approved UAS service suppliers (USS), which are private companies whose apps remote pilots can use to request and receive near-real-time authorizations.
Here is how LAANC works in practice. The FAA has divided controlled airspace around airports into small geographic grid cells, each assigned a maximum altitude ceiling, often called the UAS Facility Map (UAS FM) altitude. These ceilings represent the maximum altitude at which the FAA has determined, in advance, that drone operations are unlikely to interfere with manned traffic. They are displayed publicly on the FAA's UAS Facility Maps. A cell might show 0 feet (meaning LAANC auto-approval is not available there at any altitude), 50 feet, 100 feet, 200 feet, 300 feet, or 400 feet, depending on proximity to runways, approach corridors, and traffic density.
When a remote pilot submits a LAANC request through an approved USS app at or below the published grid ceiling, the system can grant automatic authorization in seconds. The pilot receives a formal authorization that is tied to a specific location, altitude, date, and time window. This authorization is the legal permission required by §107.41 and must be on hand during the operation (or readily accessible on a mobile device).
If a pilot needs to fly above the published LAANC grid ceiling — for example, at 300 feet in a cell that shows a 100-foot ceiling — they cannot use automatic LAANC approval. Instead, they must submit a FAA Part 107 Airspace Authorization through FAA DroneZone and provide a detailed operational plan. This process is not instant and may take considerable time, so advance planning is essential. The FAA may approve, deny, or modify the request based on local traffic and safety considerations.
Waivers Versus Authorizations
It is important not to confuse an airspace authorization with a Part 107 waiver. These are two distinct mechanisms:
- Airspace authorization (§107.41): Grants permission to fly in controlled airspace. It does not change any other Part 107 rule — the pilot must still comply with all standard operating limitations.
- Part 107 waiver (§107.200): Allows a remote pilot to deviate from a specific Part 107 rule — such as flying beyond visual line of sight. A waiver requires a detailed safety case and FAA approval, and it does not by itself grant airspace authorization. If your operation occurs in controlled airspace, you may need both a waiver (if applicable) and an authorization.
Note: Night operations are permitted under standard Part 107 operating rules without a waiver, provided the remote pilot has completed the required training and the small unmanned aircraft is equipped with anti-collision lighting visible for at least 3 statute miles with a flash rate sufficient to avoid a collision hazard (14 CFR §107.29(b)). A separate waiver is not needed for night flight itself — but airspace authorization is still required if the night operation occurs in controlled airspace.
Key Numbers and Rules
- §107.41: The specific regulation requiring authorization to operate in Class B, C, D, or surface Class E airspace.
- 400 feet AGL: The standard altitude ceiling for most Part 107 operations. LAANC cells are sized relative to this ceiling.
- UAS Facility Map (UAS FM): The published grid showing the maximum LAANC auto-approval altitudes by location around airports.
- 0-foot ceiling on UAS FM: Means LAANC cannot grant automatic approval at any altitude at that location; only manual FAA DroneZone authorization or a waiver process can grant permission.
- LAANC USS apps: Only FAA-approved UAS service suppliers can provide binding LAANC authorizations. Reviewing airspace on a non-approved mapping app does not constitute authorization.
- Class G, uncontrolled airspace: No FAA authorization required for standard Part 107 operations, though all other Part 107 rules still apply.
- Recreational flyers use a different system (the FAA recreational UAS safety test and FRIA sites) and are NOT governed by Part 107 airspace authorization processes — this distinction sometimes appears on knowledge tests.
Why It Matters for Safety and Compliance
The airspace authorization requirement is not bureaucratic red tape — it reflects a genuine safety need. Airport approach and departure corridors are some of the most congested pieces of airspace in the NAS. Manned aircraft operating at low altitudes near airports are often moving fast, may be under instrument flight rules with limited outside visual scanning, and depend on ATC to maintain separation. A drone at 200 feet on final approach, even briefly, can force an emergency go-around, endanger occupants, and result in serious FAA enforcement action including civil penalties and certificate revocation.
From a legal standpoint, operating in controlled airspace without authorization is a violation of §107.41 and can result in FAA civil penalties of up to $27,500 per violation per day, in addition to potential criminal referral if the violation is willful. LAANC removes the excuse of inconvenience — authorization can be obtained in seconds on a smartphone before the aircraft ever leaves the ground.
Practical Tips for the Cockpit (or Launch Pad)
Before any flight, open your FAA-approved USS app (such as those from approved vendors) and check the airspace at your planned location and altitude. Cross-reference with the FAA's official UAS Facility Maps to understand what ceiling applies. If the LAANC ceiling is sufficient for your mission, submit the request and save or screenshot the authorization confirmation. If the ceiling is 0 or too low, plan your mission for an uncontrolled airspace location, request a manual DroneZone authorization well in advance, or adjust your operation to remain within Class G airspace where authorization is not required.
Always carry proof of your authorization during the operation — either a printout or an accessible digital copy. FAA inspectors and law enforcement may request it, and you are required to present it upon request under Part 107.
Common Test Traps
- Confusing authorization with waiver: An airspace authorization lets you fly in controlled airspace but does not let you break other Part 107 rules. A waiver lets you deviate from a specific rule but does not grant airspace access. You may need both simultaneously.
- Assuming Class E always requires authorization: Only Class E airspace that begins at the surface requires authorization. Class E starting at 700 or 1,200 feet does not, since drones under 400 feet AGL remain in Class G beneath it.
- Treating a LAANC ceiling as the maximum flight altitude: The LAANC grid ceiling is the highest altitude for automatic authorization. The standard 400-foot Part 107 ceiling is a separate, always-applicable limit. Both must be respected simultaneously.
- Believing that checking airspace on any app equals authorization: Only a formal authorization from the FAA or an approved USS counts. Reviewing airspace on a general aviation sectional app or non-approved map does not satisfy §107.41.
- Mixing up recreational and Part 107 rules: Recreational flyers are governed by §44809 and use a different authorization pathway (FRIA sites and the TRUST test). Remote pilots holding Part 107 certificates must use the Part 107 authorization process regardless of the nature of the flight.