NAV CANADA assessment centre, language testing and the offer
The last three gates of NAV CANADA controller selection — the half-day assessment centre with group and individual exercises, phone-based language testing, and the pre-employment conditions on an offer.
Clear the six-hour testing day and three gates remain. They test different things from everything before them — the aptitude question is settled by this point, and what follows is about judgement, communication and clearance.
The assessment centre
NAV CANADA publishes that this is a half-day session containing group and individual exercises as well as an interview, designed to assess skills, abilities and attitudes. Bilingual candidates in some locations complete additional assessments.
The three-year reapplication wait attached to this stage is the longest in the process — longer than the online assessment’s one year and the in-person test’s two.
| Stage | Reapplication wait if unsuccessful |
|---|---|
| Online assessment | 1 year |
| In-person test | 2 years |
| Assessment centre | 3 years |
Group exercises: what is actually marked
Group exercises are widely misread as competitions. They are not — assessors are marking how you operate with other people, and the candidate who dominates a group discussion usually scores worse than the one who moves it forward.
- Bring other people in by name. Noticing the person who has not spoken is marked; talking over them is also marked.
- Make your reasoning audible. An assessor cannot credit a conclusion you reached silently.
- Change your mind out loud when someone makes a better point. Updating on evidence is a controller trait, not a weakness.
- Watch the clock for the group. Someone has to, and it is rarely the loudest person.
- Disagree with the argument, never with the person.
The interview
Expect competency questions — evidence from your own history rather than opinions about the job. Answer in STAR: the situation, the task you held, the action you personally took, and the result.
The most common failure is the missing result. Candidates give a situation and an action and then stop, which loses the part that actually shows judgement. Say ‘I’ rather than ‘we’: the assessor is marking you, not the team you were in.
Have concrete examples ready for: working under pressure, catching your own mistake, handling a difficult colleague, making a decision without complete information, and holding to a procedure when it was inconvenient.
Language testing
Where a role requires it, NAV CANADA runs language testing by phone with a third party. English is required for all regions; English and French are required for Quebec and Ottawa positions.
It is a real assessment of operational communication, not a formality. Speak clearly and at a measured pace — a phone line strips out everything you would normally get from a face-to-face conversation, which is exactly the point.
Selection and pre-employment conditions
An offer comes with conditions attached, and NAV CANADA publishes them: medical and licensing requirements, security clearance, and drug testing — which includes cannabis. Legal status in Canada does not exempt it from the testing regime for a safety-critical role.
Passing one stage does not guarantee an invitation to the next, and meeting the pre-employment conditions does not guarantee training completion, licensing or employment. NAV CANADA is explicit about both.
How long the whole process takes
Commonly reported as up to around four months end to end, and longer where the next training intake is further out. NAV CANADA’s general recruitment timelines for other roles do not apply to controller hiring — do not plan against them.
Try a real item
Written to the same standard as the live tests — same format, same difficulty, and where it matters, the same trap that catches people in the real thing. Pick an answer to see the reasoning.
Situational Judgement
A workplace situation from a safety-critical operation, then four possible responses. No ATC knowledge needed — Stage 2 candidates have not been trained yet.
You are under training on a live position. A pilot reads back a clearance and you are not certain the readback matched what you issued. Your supervisor is occupied with another position. Which response would be the MOST effective?
Practise what this guide covers
These are live now. Reading about a timed test is not the same as sitting one.
Common questions
What happens at the NAV CANADA assessment centre?
NAV CANADA publishes that it is a half-day session with group exercises, individual exercises and an interview, assessing skills, abilities and attitudes. Bilingual candidates in some locations complete additional assessments.
How long before I can reapply if I fail the assessment centre?
Three years — the longest wait in the process, against one year for the online assessment and two for the in-person test.
Do I need French to be a NAV CANADA controller?
English is required for all regions. English and French are both required for Quebec and Ottawa positions, tested by phone with a third party.
Does NAV CANADA drug test for cannabis?
Yes. NAV CANADA publishes that pre-employment conditions include drug testing, including cannabis.
How long does NAV CANADA controller hiring take?
Commonly reported as up to around four months, and longer depending on when the next training intake runs. NAV CANADA does not guarantee a timeline.
Keep reading
Last updated 2026-09-10. ATC Ready is an independent practice tool and is not affiliated with, endorsed by or associated with NATS Holdings, EUROCONTROL, the Federal Aviation Administration, NAV CANADA or any other air navigation service provider or testing authority. Always confirm current details on the provider's own recruitment pages.