ACS code reference

Commercial Pilot ACS codes

11 Areas of Operation and 60 tasks from FAA-S-ACS-7B. Codes beginning CA belong to this standard.

Written by the FlightWay team. Regulations checked against the eCFR and faa.gov on 11 November 2026. Not a substitute for the regulation itself or your instructor.

CA.I Preflight Preparation

• CA.I.A Pilot Qualifications
• CA.I.B Airworthiness Requirements
• CA.I.C Weather Information
• CA.I.D Cross-Country Flight Planning
• CA.I.E National Airspace System
• CA.I.F Performance and Limitations
• CA.I.G Operation of Systems
• CA.I.H Human Factors
• CA.I.I Water and Seaplane Characteristics, Seaplane Bases, Maritime Rules, and Aids to Marine Navigation (ASES, AMES)

CA.II Preflight Procedures

• CA.II.A Preflight Assessment
• CA.II.B Flight Deck Management
• CA.II.C Engine Starting
• CA.II.D Taxiing (ASEL, AMEL)
• CA.II.E Taxiing and Sailing (ASES, AMES)
• CA.II.F Before Takeoff Check

CA.III Airport and Seaplane Base Operations

• CA.III.A Communications, Light Signals, and Runway Lighting Systems
• CA.III.B Traffic Patterns

CA.IV Takeoffs, Landings, and Go-Arounds

• CA.IV.A Normal Takeoff and Climb
• CA.IV.B Normal Approach and Landing
• CA.IV.C Soft-Field Takeoff and Climb (ASEL)
• CA.IV.D Soft-Field Approach and Landing (ASEL)
• CA.IV.E Short-Field Takeoff and Maximum Performance Climb (ASEL, AMEL)
• CA.IV.F Short-Field Approach and Landing (ASEL, AMEL)
• CA.IV.G Confined Area Takeoff and Maximum Performance Climb (ASES, AMES)
• CA.IV.H Confined Area Approach and Landing (ASES, AMES)
• CA.IV.I Glassy Water Takeoff and Climb (ASES, AMES)
• CA.IV.J Glassy Water Approach and Landing (ASES, AMES)
• CA.IV.K Rough Water Takeoff and Climb (ASES, AMES)
• CA.IV.L Rough Water Approach and Landing (ASES, AMES)
• CA.IV.M Power-Off 180° Accuracy Approach and Landing (ASEL, ASES)
• CA.IV.N Go-Around/Rejected Landing

CA.V Performance Maneuvers and Ground Reference Maneuvers

• CA.V.A Steep Turns
• CA.V.B Steep Spiral (ASEL, ASES)
• CA.V.C Chandelles (ASEL, ASES)
• CA.V.D Lazy Eights (ASEL, ASES)
• CA.V.E Eights on Pylons (ASEL, ASES)

CA.VI Navigation

• CA.VI.A Pilotage and Dead Reckoning
• CA.VI.B Navigation Systems and Radar Services
• CA.VI.C Diversion
• CA.VI.D Lost Procedures

CA.VII Slow Flight and Stalls

• CA.VII.A Maneuvering During Slow Flight
• CA.VII.B Power-Off Stalls
• CA.VII.C Power-On Stalls
• CA.VII.D Accelerated Stalls
• CA.VII.E Spin Awareness

CA.VIII High-Altitude Operations

• CA.VIII.A Supplemental Oxygen
• CA.VIII.B Pressurization

CA.IX Emergency Operations

• CA.IX.A Emergency Descent
• CA.IX.B Emergency Approach and Landing (Simulated) (ASEL, ASES)
• CA.IX.C Systems and Equipment Malfunctions
• CA.IX.D Emergency Equipment and Survival Gear
• CA.IX.E Engine Failure During Takeoff Before VMC (Simulated) (AMEL, AMES)
• CA.IX.F Engine Failure After Liftoff (Simulated) (AMEL, AMES)
• CA.IX.G Approach and Landing with an Inoperative Engine (Simulated)(AMEL, AMES)

CA.X Multiengine Operations

• CA.X.A Maneuvering with One Engine Inoperative (AMEL, AMES)
• CA.X.B VMC Demonstration (AMEL, AMES)
• CA.X.C One Engine Inoperative (Simulated) (solely by Reference to Instruments) During Straight-and- Level Flight and Turns (AMEL, AMES)
• CA.X.D Instrument Approach and Landing with an Inoperative Engine (Simulated) (AMEL, AMES)

CA.XI Postflight Procedures

• CA.XI.A After Landing, Parking, and Securing (ASEL, AMEL)
• CA.XI.B Seaplane Post-Landing Procedures (ASES, AMES)

Last updated 11 November 2026.