Category 2 Operations
Category 2 is the first of the two certification-based categories in 14 CFR Part 107 Subpart D. Unlike Category 1, eligibility has nothing to do with the aircraft's weight — it depends entirely on the aircraft passing an FAA-accepted injury-severity test and being formally listed on a declaration of compliance. This lesson covers the exact operating requirements of 14 CFR 107.115, the aircraft eligibility criteria of 14 CFR 107.120, and how a remote pilot confirms a specific aircraft actually qualifies before relying on it.
What the remote pilot must confirm before relying on Category 2
Under 14 CFR 107.115(a), to conduct a Category 2 operation, the remote pilot in command must use a small unmanned aircraft that is eligible for Category 2 under 107.120(a), that is listed on an FAA-accepted declaration of compliance as eligible for Category 2 operations in accordance with 14 CFR 107.160, and that is labeled as eligible to conduct Category 2 operations in accordance with 107.120(b)(1). In plain terms: the pilot's job is verification, not creation. A specific aircraft either already has this status, established in advance by its manufacturer, or it does not, and no amount of careful piloting substitutes for that status being in place.
The aircraft eligibility test: the 11 foot-pound injury threshold
14 CFR 107.120(a) sets the actual engineering test a Category 2 aircraft must pass: it will not cause injury to a human being that is equivalent to or greater than the severity of injury caused by a transfer of 11 foot-pounds of kinetic energy upon impact from a rigid object. This is fundamentally different from the Category 1 test — it is not a weight limit at all. A relatively heavy aircraft can qualify for Category 2 if its design (energy-absorbing materials, frangible components, parachute systems, or similar mitigations) keeps the effective impact energy under this threshold, while a lighter aircraft with a rigid, poorly designed airframe could fail the same test. This is why weight alone can never tell a remote pilot whether an aircraft is Category 2 eligible.
The remaining eligibility criteria: rotating parts and safety defects
In addition to the injury-severity test, 107.120(a) also requires that the aircraft contain no exposed rotating parts that would lacerate human skin upon impact — the same rotating-parts test that appears in Category 1 — and that it contain no safety defects. All three conditions in 107.120(a) must be satisfied together for an aircraft to be eligible for a Category 2 declaration of compliance in the first place.
What the manufacturer must provide: labeling, instructions, and product support
14 CFR 107.120(b) places three obligations on the party seeking the declaration of compliance (typically the manufacturer), not directly on the remote pilot flying the aircraft, though the pilot benefits from and should verify each one: a label on the aircraft indicating eligibility for Category 2 operations that is legible, prominent, and permanently affixed, in English; operating instructions for the remote pilot covering the aircraft system, any allowable modifications, and how to verify the aircraft's mode or configuration; and ongoing product-support procedures to notify the public and the FAA of any defect that causes non-compliance or that creates a safety hazard exceeding a low probability of casualty. A remote pilot who sees the required label and has access to the operating instructions has strong evidence the aircraft is genuinely compliant — the absence of a label is a red flag that the aircraft may not actually be Category 2 eligible despite manufacturer claims.
- Labeling: Legible, prominent, permanently affixed, in English, stating Category 2 eligibility.
- Operating instructions: Cover the system description, allowable modifications, and configuration verification.
- Product support: Notification procedures for defects exceeding a low probability of casualty.
Operating restriction: sustained flight over open-air assemblies
14 CFR 107.115(b) carries forward the same restriction that applies to Category 1: no remote pilot in command may operate a Category 2 aircraft in sustained flight over open-air assemblies of human beings unless the operation meets the requirements of either 14 CFR 89.110 (Standard Remote ID) or 89.115(a) (a Remote ID broadcast module operated within visual line of sight). Meeting the Category 2 aircraft eligibility test does not, by itself, clear an aircraft for hovering over a dense outdoor crowd — the Remote ID condition applies on top of it.
Category 2 eligibility: the 11 foot-pound injury threshold, rotating-parts test, and required labeling and declaration.
View LargerScenario: using a manufacturer-declared Category 2 aircraft for a downtown inspection
A remote pilot is contracted to inspect the exterior of an office building in a downtown area where the flight path will briefly transit over pedestrians on the sidewalk who are not participants. The pilot's own aircraft is well over 0.55 lb, so Category 1 is not available. Instead, the pilot rents an aircraft from the manufacturer's declared Category 2 fleet. Before the flight, the pilot confirms the required Category 2 label is present, permanently affixed, and legible on the airframe, reviews the provided operating instructions to confirm the aircraft is in its declared configuration (no unauthorized modifications), and avoids any sustained hovering directly over the sidewalk, keeping the overflight transient rather than sustained. Because the pedestrians below are moving individuals rather than a dense, stationary open-air assembly, the added Remote ID condition of 107.115(b) does not come into play for this particular flight.
Category Classifier Helper
Confirming Category 2 eligibility before a job
Since Category 2 eligibility is a property of the aircraft's certification, not something the pilot can establish on the spot, verification is entirely a documentation and inspection exercise.
Inspect the aircraft for the required Category 2 label
Confirm the label is present, legible, prominent, and permanently affixed, in English, and specifically states eligibility for Category 2 operations as required by 107.120(b)(1).
Confirm the aircraft is in its declared configuration
Review the manufacturer's operating instructions and verify the aircraft has not been modified beyond what those instructions allow — an unauthorized modification can invalidate the declaration of compliance for that specific aircraft.
Plan the flight path to avoid sustained flight over open-air assemblies, or confirm Remote ID compliance
If the flight path can avoid hovering or circling over a dense, stationary crowd, do so. If it cannot, confirm the aircraft and operation meet 14 CFR 89.110 or 89.115(a) before conducting that portion of the flight.
| Mistake | Why it happens | Correct understanding | Regulation / source |
|---|---|---|---|
| Assuming a heavier aircraft can never qualify for a category besides Category 4 | Category 1's weight limit gets outsized attention, leading people to assume weight governs every category | Category 2 eligibility is based on an 11 foot-pound impact-energy test, not weight; a heavier, well-designed aircraft can still qualify | 14 CFR 107.120(a)(1) |
| Confusing the Category 2 injury threshold (11 ft-lbs) with the Category 3 threshold (25 ft-lbs) | Both are stated in the same units and the numbers are easy to transpose under test pressure | Category 2 allows up to 11 foot-pounds of transferred kinetic energy; Category 3 allows up to 25, a higher, less restrictive threshold paired with tighter site restrictions | 14 CFR 107.120(a)(1); 14 CFR 107.130(a)(1) |
| Believing a manufacturer's marketing claim of "Category 2 ready" is sufficient without checking the aircraft itself | Marketing language can precede or overstate actual FAA acceptance | The remote pilot must confirm the specific aircraft is listed on an FAA-accepted declaration of compliance and bears the required label, not just rely on marketing claims | 14 CFR 107.115(a)(2)-(3) |
| Thinking Category 2 has no restriction on flying over crowds since it already passed a safety test | Passing the injury-severity test feels like it should be the complete safety picture | Sustained flight over an open-air assembly still requires Remote ID compliance under 89.110 or 89.115(a), the same added condition that applies to Category 1 | 14 CFR 107.115(b) |
Is Category 2 eligibility based on the aircraft's weight?
No. Category 2 eligibility depends on the aircraft passing an FAA-accepted impact-energy test showing it will not cause injury equivalent to or greater than a transfer of 11 foot-pounds of kinetic energy, not on its weight. Weight is only relevant to Category 1.
Can a remote pilot get an aircraft declared Category 2 eligible on their own?
No. A declaration of compliance is obtained by the party responsible for the aircraft's design, typically the manufacturer, and accepted by the FAA under 14 CFR 107.160. A remote pilot verifies this status through the aircraft's label and documentation; they do not create it.
Does a Category 2 aircraft need Remote ID to fly over a crowd?
For sustained flight over a dense, stationary open-air assembly, yes — the operation must comply with 14 CFR 89.110 or 89.115(a), the same condition that applies to Category 1 aircraft. Brief, transient overflight of a moving or scattered group does not trigger this condition.
Test Your Knowledge
Answer the questions below to check your understanding. Every answer can be found in the lesson above.