NAV CANADA Ground Traffic Phraseology: What ROC-A Candidates Should Learn

Radio Phraseology
May 03, 2026•7 min read

NAV CANADA Ground Traffic Phraseology: What ROC-A Candidates Should Learn

Ground traffic phraseology is one of the most practical aviation communication topics for ROC-A candidates, student pilots, RPAS operators, airport staff, and anyone who may operate near an aerodrome environment. It is not only about sounding professional on the radio. It is about reducing confusion, preventing misunderstandings, and supporting safe movement around aircraft, vehicles, taxiways, and runways.

Source document: NAV CANADA Ground Traffic Phraseology, Version 3, April 2022: https://storage.googleapis.com/msgsndr/86sJp8DNXAzlnwf4vQTq/media/67d484cf0f3aea59f767d381.pdf

Quick links: Free ROC-A Study Hub • Book your official ROC-A exam

Quick answer

ROC-A candidates should understand the basics of ground traffic phraseology because aviation radio communication must be clear, concise, and predictable. NAV CANADA’s Ground Traffic Phraseology guide is especially useful for learning how ground vehicle operators, aircraft maintenance engineers, and Air Traffic Services communicate around airport movement areas.

Why this topic matters

NAV CANADA explains that the Ground Traffic Phraseology document is intended as a learning tool and reference guide for ground vehicle operators and aircraft maintenance engineers. The document was created using resources such as the Canadian Aviation Regulations, the Transport Canada Aeronautical Information Manual, and input from Air Traffic Controllers, Flight Service Specialists, Flight Information Centres, and aviation industry contributors.

The document also highlights an important safety point: communication is a contributing factor to safety, and many incidents and occurrences cite communication as a primary cause. That is exactly why standardized phraseology matters. When everyone uses the same foundation, there is less room for error or misinterpretation.

Who should read this guide?

This guide is valuable for:

  • ROC-A candidates who want practical radio context
  • Student pilots learning Canadian aviation communication
  • Airport ground vehicle operators
  • Aircraft maintenance engineers working near movement areas
  • RPAS/drone operators who want better aviation-radio awareness
  • Foreign pilots adapting to Canadian phraseology
  • Aviation employees working on or near aerodromes

Even if a candidate is not planning to drive a vehicle on an airport movement area, the guide teaches important communication habits that apply across aviation radio work.

What the NAV CANADA guide covers

The table of contents shows a strong practical focus. Topics include:

  • Phonetic alphabet
  • Numbers and Roman numerals
  • Standard words and phrases
  • Air Traffic Service units
  • Radio operation
  • Recommended practices
  • Driving on the airfield
  • Hot spots
  • General radio communication format
  • Initial contact
  • Radio checks
  • Reporting position
  • Proceed via
  • Give way
  • Hold position
  • Hold short
  • Crossing a runway
  • Say again
  • Unsure of position
  • Progressive instructions
  • Operating on a runway
  • Runway protected areas
  • ILS critical areas
  • Towing aircraft
  • Low visibility and night operations
  • Wildlife, FOD, and communication failure

For ROC-A candidates, the most important lesson is not to memorize every airport ground scenario. The most important lesson is to understand the structure and discipline of radio communication.

The general format of radio communication

A strong aviation radio call normally follows a predictable order. The exact words may vary by scenario, but the logic is usually similar:

  1. Who are you calling?
  2. Who are you?
  3. Where are you?
  4. What do you want or intend to do?
  5. What instruction, clearance, or information must be confirmed?

This structure prevents rambling. It also helps the other station understand the message quickly.

Key phraseology concepts ROC-A candidates should learn

1. Initial contact

Initial contact should be clear and complete enough for the receiving station to understand who is calling and why. Avoid starting with a vague or incomplete call. A weak call creates extra transmissions.

2. Radio check

A radio check confirms that transmissions are readable. Candidates should understand that radio clarity matters and should avoid unnecessary testing unless a check is actually required.

3. Report your position

Position reports help others build situational awareness. A good position report is specific, brief, and relevant to the operation.

4. Hold position and hold short

“Hold position” and “hold short” are not casual phrases. These instructions can be safety-critical, especially near runways or protected areas. A candidate should understand the seriousness of these instructions and the importance of accurate readback where required.

5. Crossing a runway

Runway crossing is a high-attention communication moment. The NAV CANADA guide includes runway crossing as a dedicated topic, which reinforces how important it is to avoid assumptions near runways.

6. Say again

If a transmission is missed or unclear, “say again” is better than guessing. Guessing creates risk. Asking for repetition is a professional radio habit.

7. Unsure of position

If a vehicle operator or pilot is unsure of position, the priority is to communicate clearly and stop the situation from becoming more confusing. Plain language may be appropriate when standard phraseology is not enough.

8. Progressive instructions

Progressive instructions can help when a person needs step-by-step guidance. This is especially useful in unfamiliar airport environments.

What ROC-A candidates can learn from ground traffic examples

The ROC-A exam is about aeronautical radio operator knowledge, but practical examples make the material easier to understand. Ground traffic phraseology teaches candidates:

  • Why standard words reduce confusion
  • Why readbacks matter
  • Why location awareness matters
  • Why runway-related communication must be precise
  • Why plain language is acceptable when standard phraseology is not enough
  • Why silence, hesitation, or guessing can increase risk

These lessons apply broadly to aviation radio communication.

Connection to ROC-A and ISED study material

ISED explains that ROC-A is a radio operator certificate intended for aircraft pilots, drone operators, airport radio operators, and ground staff who operate radios using aeronautical band frequencies. ISED also directs candidates to RIC-21 as the official ROC-A study guide.

For ROC-A preparation, use this order:

  1. Read the ISED ROC-A overview.
  2. Study RIC-21 for official exam scope.
  3. Use ROCALicence.com’s Study Hub to organize your preparation.
  4. Read NAV CANADA phraseology material for practical examples.
  5. Practise speaking radio calls out loud.

Official references:

Practical study exercise

Try this exercise before your ROC-A exam:

Scenario

You are operating near an aerodrome and need to request movement from one point to another. You must make the call clearly and avoid unnecessary words.

Practice structure

  • Station called
  • Your identification
  • Your position
  • Your request
  • Readback or confirmation if instructed

Self-check questions

  • Did the call identify who you were calling?
  • Did the call identify who you were?
  • Did the call explain where you were?
  • Did the call clearly explain what you wanted?
  • Did the call avoid filler words?
  • Did you ask for repetition if uncertain?

Common mistakes to avoid

Mistake 1: Talking too much

Long radio calls can hide the important information. Keep calls concise.

Mistake 2: Guessing instead of asking

If unsure, ask. “Say again” is better than acting on a misunderstood instruction.

Mistake 3: Treating runway instructions casually

Runway-related instructions require attention and precision.

Mistake 4: Ignoring plain language

NAV CANADA’s guide notes that examples are not exhaustive and that plain language should be used when standard phraseology falls short. That is an important practical lesson.

Mistake 5: Studying silently only

Radio communication is spoken communication. Practise out loud.

How this helps before booking your ROC-A exam

Candidates who read phraseology examples usually feel more confident because the exam material becomes less abstract. Instead of memorizing terms, the candidate starts to understand why aviation communication is structured the way it is.

If you are preparing for ROC-A, use the free Study Hub first, then book when ready.

Final takeaway

NAV CANADA’s Ground Traffic Phraseology guide is a high-value reference for anyone learning Canadian aviation radio communication. ROC-A candidates should use it to understand practical communication structure, especially around position reporting, hold short instructions, runway crossing, radio checks, and what to do when uncertain.

Study RIC-21 for official ROC-A exam scope. Use NAV CANADA phraseology guides to understand practical radio communication. Then practise out loud until your calls are clear, brief, and organized.

Ready to complete your ROC-A? Book your official ROC-A exam here.

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Lesley Pinto

Lesley Pinto

ISED-appointed ROC-A examiner helping candidates complete aviation radio licensing in Canada.

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