Part 107 Proficiency
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Part 107 Cram Sheet

One-page quick reference. Press Ctrl+P / Cmd+P to print.

Part 107 Operating Limits

Max altitude: 400 ft AGL; structure allowance requires remaining within 400 ft and no more than 400 ft above the structure's uppermost limit
Max speed: 100 mph (87 knots)
VLOS: Must maintain visual line of sight
Right of way: Yield to all aircraft, airborne vehicles, and launch and reentry vehicles
Alcohol: No use within 8 hours; no operation while under the influence or at an alcohol concentration of 0.04 or greater
Drugs: No drug that affects faculties contrary to safety
Max weight: Less than 55 lb on takeoff, including everything on board or otherwise attached
Registration: All drones operated under Part 107 must be registered
Night ops: Anti-collision light visible 3 SM
Safety event report: Report within 10 days after a qualifying serious injury or loss of consciousness, or damage to property other than the small unmanned aircraft when repair cost or fair-market value exceeds $500
Remote ID: Required for most operations

Operations Over People — Category Snapshot

Category 1: 0.55 lb or less on takeoff and throughout the operation, including attachments; no exposed rotating parts that would lacerate skin. Sustained flight over open-air assemblies requires Remote ID compliance.
Category 2: Must not cause injury equivalent to or greater than a rigid-object impact transferring 11 foot-pounds; no exposed lacerating rotating parts or safety defect; FAA-accepted declaration, label, and instructions required. Sustained flight over open-air assemblies requires Remote ID compliance.
Category 3: Must not cause injury equivalent to or greater than a rigid-object impact transferring 25 foot-pounds; no exposed lacerating rotating parts or safety defect; FAA-accepted declaration, label, and instructions required. No open-air assemblies; closed/restricted-access site where everyone is on notice, or no sustained flight over unprotected nonparticipants.
Category 4: Part 21 airworthiness certificate; follow approved operating limitations and maintenance requirements. Sustained flight over open-air assemblies requires Remote ID compliance.

Source: FAA Operations Over People

Airspace Quick Reference

Class B
Description: Major-airport layered airspace
Chart: Solid blue
Rule: FAA authorization required
Class C
Description: Two-tier airport airspace
Chart: Solid magenta
Rule: FAA authorization required
Class D
Description: Towered-airport surface area
Chart: Dashed blue
Rule: FAA authorization required
Class E
Description: Controlled (not B/C/D)
Chart: Dashed magenta / shaded blue or magenta
Rule: FAA authorization is required before Part 107 operations in Class B, C, or D airspace, or within the lateral boundaries of the Class E surface area designated for an airport (Class E2). A dashed magenta boundary can also depict a Class E extension area, so the symbol alone does not establish an authorization requirement; verify the applicable airspace and UAS Facility Map.
Class G
Description: Uncontrolled
Chart: Not separately bounded
Rule: No ATC authorization
TRSA: Terminal Radar Service Area — optional radar services
MOA: Military Operations Area — VFR allowed, watch for military
Restricted: Artillery, bombing — requires permission when active
Prohibited: No flight ever (White House, Camp David)
TFR: Check NOTAMs before every flight (tfr.faa.gov)
5 NM ring: Class C inner ring radius
Class E floor: 700 ft AGL (shaded magenta), 1,200 ft AGL (shaded blue)

Weather & Performance

METAR Decode

METAR KATL 161552Z 31012G18KT 10SM FEW030 BKN050 22/14 A3012 RMK AO2
KATL = station | 161552Z = 16th at 15:52 Zulu | 31012G18KT = wind 310° at 12 kts gusting 18
10SM = visibility 10 statute miles | FEW030 = few clouds at 3,000 ft | BKN050 = broken at 5,000 ft
22/14 = temp 22°C / dewpoint 14°C | A3012 = altimeter 30.12 inHg | RMK = remarks | AO2 = automated with precip sensor

TAF Decode

TAF KATL 161720Z 1618/1724 31010KT P6SM SCT040
161720Z = issued 16th at 17:20 Zulu | 1618/1724 = valid 16th 18Z to 17th 24Z
P6SM = visibility greater than 6 SM | SCT040 = scattered at 4,000 ft
Density altitude: ↑ hot/high/humid = ↑ DA = ↓ performance
Standard lapse: 2°C per 1,000 ft
Inversion: Temp increases w/ altitude — traps fog/pollution
Stable air: Stratus, steady precip, poor vis, smooth ride
Unstable air: Cumulus, showery precip, good vis, rough ride
Wind shear: Sudden change in wind direction/speed — avoid
3-1-1 rule: 3 days, 1 hr of fire, 1 hr of flight. LiPo storage charge
IMSAFE: Illness, Medication, Stress, Alcohol, Fatigue, Emotion — preflight self-check

ACS Test Breakdown

Area I
Topic: Regulations
Weight: 15–25%
Questions: 9–15
Area II
Topic: Airspace & Operating Requirements
Weight: 15–25%
Questions: 9–15
Area III
Topic: Weather
Weight: 11–16%
Questions: 7–10
Area IV
Topic: Loading & Performance
Weight: 7–11%
Questions: 4–7
Area V
Topic: Operations
Weight: 35–45%
Questions: 21–27

Test Format

Questions: 60 multiple-choice questions
Time: 120 minutes (2 hours)
Passing: 70% (42/60 correct)
Test code: UAG — Unmanned Aircraft General — Small
Aeronautical knowledge recency: The certificate does not expire; to exercise its privileges, complete a qualifying § 107.65 event within the previous 24 calendar months (initial knowledge test, or applicable recurrent training: ALC-677 for all Part 107 pilots; ALC-515 for Part 107 pilots who hold a Part 61 pilot certificate other than a student pilot certificate and have a current flight review)
Age: 14 for the UAG knowledge test; 16 for Remote Pilot Certificate eligibility

Source: FAA-S-ACS-10B

Cloud Clearance & Visibility

Part 107 minimum visibility: 3 SM from the control station
Part 107 cloud distance: At least 500 ft below and 2,000 ft horizontally

Source: 14 CFR § 107.51

Chart Symbols to Know

MEF: Maximum Elevation Figure — bold blue number, 100s of ft MSL, includes 100-200 ft margin
Airport symbol colors: Blue indicates a towered airport; magenta indicates a non-towered airport. Color does not state whether IFR procedures exist.
Obstacle: Man-made > 200 ft AGL. Triangle = <1,000 ft AGL. Taller = taller symbol
Isogonic line: Dashed magenta — shows magnetic variation
Victor airway: V-####, 8 nm wide, 1,200 ft AGL to FL180
AWOS/ASOS: Circle with frequency — automated weather at airport