Part 107 Visual Observer Rules on a Commercial Job

On a commercial Part 107 job, a Part 107 visual observer is not a casual “spotter with binoculars.” Under 14 CFR § 107.3, a visual observer is a person designated by the remote pilot in command to assist the remote pilot in command and the person manipulating the flight controls of the small UAS to see and avoid other air traffic or objects aloft or on the ground. This article is an educational map of how §§ 107.31 and 107.33 fit a paid flight—not legal advice, and it invents no fines. Confirm the live eCFR text before you fly.

Visual line of sight is the floor (§ 107.31)

14 CFR § 107.31 requires that, with vision unaided by any device other than corrective lenses, the remote pilot in command, the visual observer (if one is used), and the person manipulating the flight controls must be able to see the unmanned aircraft throughout the entire flight in order to know its location; determine its attitude, altitude, and direction of flight; observe the airspace for other air traffic or hazards; and determine that the aircraft does not endanger the life or property of another.

Throughout the flight, that ability must be exercised by either (1) the remote pilot in command and the person manipulating the flight controls, or (2) a visual observer. In plain field language: someone who meets § 107.31 must actually be doing the see-and-avoid work for the whole flight—not hoping the camera feed is enough.

FPV goggles, tablets, and binoculars do not replace the unaided-eye VLOS rule in § 107.31. Corrective lenses are allowed; other vision aids are not a substitute for the regulatory “see” standard described there.

When you use a VO, § 107.33 adds duties

You are not required to use a visual observer on every Part 107 flight. When you do use one, 14 CFR § 107.33 requires all of the following:

• The remote pilot in command, the person manipulating the flight controls, and the visual observer must maintain effective communication with each other at all times
• The remote pilot in command must ensure the visual observer can see the unmanned aircraft in the manner specified in § 107.31
• Those people must coordinate to scan the airspace where the small unmanned aircraft is operating for any potential collision hazard, and to maintain awareness of the aircraft’s position through direct visual observation

A VO who cannot raise the PIC on the radio, who loses the aircraft behind a building, or who is also trying to run client hospitality is not meeting the coordination and observation frame § 107.33 describes.

Commercial job patterns where a VO earns their keep

Typical paid scenarios:

• PIC is heads-down on a mapping grid app while another person holds VLOS and scans for traffic
• Long linear corridor where a second set of eyes covers approach sectors the PIC cannot glass continuously
• Training or crew flights where one certificated remote pilot manipulates controls and another acts as PIC with a VO in the communication loop—as your crew roles are actually assigned
• Sites with mixed manned traffic, tower cranes, or busy approach paths where scan discipline matters

A VO is not a waiver. Operating beyond visual line of sight, over people, at night, or in other constrained ways still follows the Part 107 rule that applies—or a waiver/authorization that expressly covers the operation. Do not treat “we brought a friend” as BVLOS permission.

What the VO is not

• Not automatically a second remote pilot in command
• Not a substitute for the PIC’s overall responsibility under Part 107
• Not a loophole to stare only at a video feed
• Not optional communication—“wave if you see a plane” fails § 107.33’s effective-communication requirement when a VO is used
• Not a reason to invent fine amounts or “typical ticket” stories; this site does not publish invented penalties

If roles are fuzzy on the ramp, write them down before launch: who is PIC, who manipulates controls, who is VO, what callouts mean (traffic clock position, lose-sight, land now).

Field checklist (high level)

1. Confirm whether this flight relies on PIC/manipulator VLOS or on a designated VO under § 107.31(b)
2. If a VO is used, brief effective communication (radio/phones, dead-man phrases, lose-sight abort)
3. Walk the VO’s vantage: can they see the aircraft per § 107.31 for the whole planned flight box?
4. Coordinate scan sectors so airspace and aircraft position stay covered under § 107.33(c)
5. Keep the client and curious bystanders out of the VO’s primary scan duty
6. Log who served as VO and where they stood—ops hygiene for the job file

Soft ops note

Crew role clarity is operations hygiene as much as regulatory reading. Some commercial teams keep PIC, VO, and flight notes on the same job record in tools such as Pilot Ledger; the controlling text remains the eCFR sections linked above.

Bottom line

A Part 107 visual observer is a defined crew role under § 107.3. Section 107.31 sets the unaided VLOS see-and-avoid standard; § 107.33 adds communication, VO visual capability, and coordinated scan duties when a VO is used. This article invents no fines and authorizes no flight—read the live eCFR Part 107 before you launch.