COM/AST/109/2026 is not a one-test competition. It is a sequence of different selection problems: reasoning under time pressure, accurate EU knowledge, disciplined written analysis and convincing oral performance. A high score in one stage does not compensate for weak preparation in another.

Our new COM/AST/109/2026 training guide turns the notice into a practical preparation system. It brings the format, thresholds, practice tools and revision priorities together in one place. This article explains what the guide covers and how to use it without wasting time.

Competition snapshot

• Reference: COM/AST/109/2026
• Grade: AST3
• Indicative reserve list: 70 successful candidates
• Application deadline: 31 July 2026 at 12:00 Brussels time
• Competition Language 2: English, French or German

Eligibility is specific to this internal competition. Do not infer it from an open EPSO competition or from a colleague's situation. Check your staff category, service record, education and language declarations against the notice before investing in a study plan.

The four-stage preparation map

1. Cognitive reasoning: build reliable speed

The cognitive test contains 24 questions in 36 minutes across numerical, inductive and deductive reasoning. The benchmark is percentile-based, so the practical target is not merely to survive the test. You need enough accuracy at pace to remain competitive against the reference population.

Start with untimed diagnosis. Record the cause of each miss: concept gap, bad setup, overlooked condition, calculation error or time pressure. Then move to short timed sets. Finish with full mixed simulations where you practise decisions as much as answers: when to continue, when to eliminate and when to move on.

EPSOHQ's COM/AST/109/2026 reasoning practice uses a fixed English proxy with eight questions from each reasoning family. The official delivery is adaptive and the provider is not named in the notice, so treat our engine as skills and pacing practice rather than a replica of the official interface.

2. EU knowledge: revise for recall and discrimination

The EU knowledge test contains 30 questions in 40 minutes. The pass mark is 15/30, but this stage also ranks candidates: up to 2.5 times the target reserve-list number progress. Preparing only to reach the threshold therefore leaves too little margin.

Build knowledge in layers:

1. Institutional map: who proposes, decides, implements, supervises and reviews.
2. Procedures: sequence, actors, voting rules, exceptions and legal effects.
3. Policies and priorities: objectives, instruments, institutional ownership and recent context.
4. Question discrimination: distinguish two answers that are both plausible but only one of which answers the exact question.

Use the EU Knowledge database for structured revision, then take the 30-question COM/AST/109/2026 mock under the official time limit. Review every uncertain answer, including correct guesses. Confidence without evidence is not mastery.

3. Written test: convert a dossier into a decision-ready document

The 90-minute written test may require a summary report, minutes, a letter or a note based on supplied documents. It assesses critical thinking, analysis, creative problem solving and written communication. The pass mark is 26/50.

A useful answer is not a compressed dossier. It is a document designed for a reader with a purpose. Before drafting, identify:

• the requested output and audience;
• the central issue and decision;
• the strongest facts and their source;
• constraints, risks and unresolved points;
• options or recommendations, with owners and next steps.

Allocate time deliberately: brief task analysis, evidence extraction, a visible structure, controlled drafting and a final compliance check. Our written test guide provides frameworks for dossier reading, planning, drafting and self-review.

4. Oral test: make reasoning visible

The 60-minute oral assessment combines a short presentation on EU institutions, policies or procedures, follow-up questions and a structured interview. It evaluates motivation and intrapreneurship, learning, oral communication, self-management and teamwork. The pass mark is 25/50.

The oral test does not reward a memorised monologue. The panel needs to hear how you frame a problem, select relevant evidence, compare options, handle uncertainty and move toward implementation. That calls for a flexible speaking map: opening, issue, analysis, recommendation, delivery and close.

Our new oral presentation guide contains 26 chapters covering dossier analysis, evidence ledgers, option comparison, implementation planning, speaking maps, follow-up questions and difficult panel interventions. It also includes:

• 10 worked candidate presentations with audio and captions;
• six blind practice cases;
• a diagnostic scoring rubric;
• print-ready case PDFs;
• a companion section for the structured recruitment interview.

Use the examples as demonstrations, not scripts. Read the brief, prepare your own version, deliver it aloud and only then compare it with the worked response. That preserves the part of practice that matters: making choices under constraint.

A study cycle that connects the stages

Running four separate study plans creates unnecessary repetition. Use one weekly cycle:

1. Diagnose: one timed reasoning set and one EU knowledge set.
2. Repair: two focused sessions on the specific error patterns found.
3. Produce: one written dossier answer or one oral case.
4. Review: score the product against a fixed rubric and rewrite or redeliver the weakest section.
5. Simulate: complete one longer session under realistic time and interruption conditions.

Keep one error log across the competition. A recurring weakness such as missing qualifiers, weak prioritisation or unsupported conclusions will often appear in reasoning questions, written work and oral answers. Fixing the underlying habit has more value than collecting more material.

What to do first

If you are starting now, use this order:

1. Confirm eligibility and the operative timetable in the official notice and Staff Centre updates.
2. Open the COM/AST/109/2026 guide and record your baseline in every stage.
3. Protect regular slots for cognitive reasoning and EU knowledge; both improve through repeated retrieval and review.
4. Begin written and oral production early. Do not wait until knowledge revision feels complete.
5. Use full simulations only after you have a review method. A mock without analysis is only a score.