Pilots have TEA and a crowd of national tests; controllers have ELPAC. Built specifically for the ATC working environment, the English Language Proficiency Assessment for aeronautical communication rates controllers on the same ICAO 1 to 6 scale as every other aviation English test, but does it through the controller's own material: radiotelephony, unusual situations on frequency, and face-to-face interaction about operational scenes. This guide covers the reported structure, what raters listen for, and preparation per paper.
What is the ELPAC Test?
ELPAC, the English Language Proficiency Assessment for aeronautical communication, was developed under EUROCONTROL for licensing air traffic controllers against ICAO's language requirements, and is delivered through approved organisations. Its result is an ICAO level per the six skills, with Level 4 as the operational minimum and the same lowest-skill rule explained in our ICAO Level 4 guide: your certificate carries your weakest skill's level.
Candidates commonly report two papers. The listening paper plays recordings of pilot transmissions and radio situations, routine and decidedly non-routine, and checks comprehension of what was said and what it operationally means. The speaking paper is interactive: responding to pilot transmissions in an ATC-style setting, handling unusual situations where standard phraseology runs out, and discussing aviation-related material with an interlocutor. Delivery details vary by test centre and version, so treat specifics as candidate-reported guidance; Aviation Aptitude is an independent platform with no affiliation to EUROCONTROL or any ELPAC provider.
What the Papers Reward
The design philosophy mirrors the job: phraseology alone cannot pass it. The scenarios are engineered to leave the script, a confused pilot, a technical problem, a request that has no standard answer, precisely to sample plain English layered over correct radio habits, the balance our standard phraseology guide describes. Raters score the six ICAO skills, and controller-specific listening deserves respect: transmissions come fast, accented and clipped, and the paper checks operational understanding, not word-for-word recall.
ELPAC fails candidates in the gap between perfect phraseology and real conversation. The test lives exactly where the script ends.
How to Prepare: Strategies That Actually Work
- Train listening on radio-style audio daily. The listen-then-respond loop of the Interactive Comprehension module reproduces the paper's core motion: hear once, extract the operational content, respond.
- Rehearse the script-leaving moment. The Role-play and Emergency module drills non-routine exchanges where clarification and plain English are the scored behaviours.
- Keep phraseology automatic so English gets the attention. Read-backs and standard calls should cost nothing cognitively; the Sentence Practice module builds that automaticity on real recordings.
- Speak about operational scenes aloud. Describing situations and explaining decisions, as in the Picture and Situation module, matches the interactive paper's discussion element.
- Fix your weakest ICAO skill first. The lowest-score rule makes it the certificate's author; the descriptors guide explains what each skill's levels look like.
- Do a full mock before booking. Both papers in one sitting, once; pacing and stamina surprises belong in practice, not on test day.
Common Mistakes to Avoid
- Preparing phraseology perfectly and plain English not at all, the exact gap the test measures.
- Practising listening on clean classroom audio instead of fast, accented radio material.
- Guessing at half-heard transmissions instead of using clarification, which is scored as strength.
- Ignoring re-test validity planning; like all ICAO ratings, Level 4 commonly means a recurring re-test cycle.
Frequently Asked Questions
Who needs to take ELPAC?
Air traffic controllers demonstrating ICAO language proficiency for licensing, wherever their authority or employer uses ELPAC as its accepted instrument; pilots typically sit other tests such as TEA.
What level do controllers need on ELPAC?
ICAO Level 4 is the operational minimum, with Level 5 commonly earning a longer re-test interval and Level 6 typically permanent; exact validity rules belong to each authority.
Is ELPAC harder than TEA?
They rate the same six skills at the same standard; ELPAC feels harder to some candidates because its material is controller-specific, with dense radio listening and interactive frequency scenarios.
Practice This Skill
Every ELPAC behaviour has a training counterpart in the Aviation English track: radio listening with spoken summaries, non-routine role-plays scored on ICAO criteria, phraseology automation and scene discussion, with first lessons free. Start with the ICAO Level 4 guide for the scale, then train the papers directly.