929 

Federal Aviation Administration, DOT 

§ 107.37 

§ 107.27

Alcohol or drugs. 

A person manipulating the flight 

controls of a small unmanned aircraft 
system or acting as a remote pilot in 
command or visual observer must com-
ply with the provisions of §§ 91.17 and 
91.19 of this chapter. 

§ 107.29

Daylight operation. 

(a) No person may operate a small 

unmanned aircraft system during 
night. 

(b) No person may operate a small 

unmanned aircraft system during peri-
ods of civil twilight unless the small 
unmanned aircraft has lighted anti-col-
lision lighting visible for at least 3 
statute miles. The remote pilot in com-
mand may reduce the intensity of the 
anti-collision lighting if he or she de-
termines that, because of operating 
conditions, it would be in the interest 
of safety to do so. 

(c) For purposes of paragraph (b) of 

this section, civil twilight refers to the 
following: 

(1) Except for Alaska, a period of 

time that begins 30 minutes before offi-
cial sunrise and ends at official sunrise; 

(2) Except for Alaska, a period of 

time that begins at official sunset and 
ends 30 minutes after official sunset; 
and 

(3) In Alaska, the period of civil twi-

light as defined in the Air Almanac. 

§ 107.31

Visual line of sight aircraft op-

eration. 

(a) With vision that is 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 con-
trol of the small unmanned aircraft 
system must be able to see the un-
manned aircraft throughout the entire 
flight in order to: 

(1) Know the unmanned aircraft’s lo-

cation; 

(2) Determine the unmanned air-

craft’s attitude, altitude, and direction 
of flight; 

(3) Observe the airspace for other air 

traffic or hazards; and 

(4) Determine that the unmanned air-

craft does not endanger the life or 
property of another. 

(b) Throughout the entire flight of 

the small unmanned aircraft, the abil-

ity described in paragraph (a) of this 
section must be exercised by either: 

(1) The remote pilot in command and 

the person manipulating the flight con-
trols of the small unmanned aircraft 
system; or 

(2) A visual observer. 

§ 107.33

Visual observer. 

If a visual observer is used during the 

aircraft operation, all of the following 
requirements must be met: 

(a) The remote pilot in command, the 

person manipulating the flight controls 
of the small unmanned aircraft system, 
and the visual observer must maintain 
effective communication with each 
other at all times. 

(b) The remote pilot in command 

must ensure that the visual observer is 
able to see the unmanned aircraft in 
the manner specified in § 107.31. 

(c) The remote pilot in command, the 

person manipulating the flight controls 
of the small unmanned aircraft system, 
and the visual observer must coordi-
nate to do the following: 

(1) Scan the airspace where the small 

unmanned aircraft is operating for any 
potential collision hazard; and 

(2) Maintain awareness of the posi-

tion of the small unmanned aircraft 
through direct visual observation. 

§ 107.35

Operation of multiple small 

unmanned aircraft. 

A person may not operate or act as a 

remote pilot in command or visual ob-
server in the operation of more than 
one unmanned aircraft at the same 
time. 

§ 107.36

Carriage of hazardous mate-

rial. 

A small unmanned aircraft may not 

carry hazardous material. For purposes 
of this section, the term hazardous ma-
terial is defined in 49 CFR 171.8. 

§ 107.37

Operation near aircraft; right- 

of-way rules. 

(a) Each small unmanned aircraft 

must yield the right of way to all air-
craft, airborne vehicles, and launch and 
reentry vehicles. Yielding the right of 
way means that the small unmanned 
aircraft must give way to the aircraft 
or vehicle and may not pass over, 
under, or ahead of it unless well clear. 

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