French Engineering Diplomas Need B2 in Every Skill

Every student in a French engineering school meets the same requirement, and most guides describe it wrongly.

The accreditation body does not ask for an English score. It asks for B2 validated in all skills, checked partly by an external test, and it says out loud that what it actually recommends is C1.

That first phrase is the one that changes how you prepare. All skills. No averaging.

SpeakShark is free for the skill averaging usually hides, three AI conversation sessions a day with no card, each capped at five minutes and four turns.

In this guide: the actual rule · all skills, no averaging · the external test clause · C1 is recommended · the exceptions · the document trap · which test · what we could not verify · how we researched this · FAQ

Key takeaways

• B2 is the minimum to validate in all skills for the ingénieur diplômé title.
• Assessment combines an internal evaluation with an external recognised test.
• C1 is recommended in English across the four language activities.
• Exceptions exist for continuing education and English-taught programmes, both framed as exceptional.
• The international reference says something different. Do not quote it at a French school.

What the rule actually says

The Commission des Titres d'Ingénieur is the body that accredits French engineering programmes, and its reference document is where the language requirement lives. The core sentence:

En anglais et en français langue étrangère, le niveau linguistique minimum à valider dans toutes les compétences pour obtenir le titre d'ingénieur diplômé est le niveau B2 du cadre européen commun de référence pour les langues (CECRL).

In English and in French as a foreign language, the minimum linguistic level to validate in all skills in order to obtain the title of ingénieur diplômé is CEFR B2.

Read the middle of that sentence rather than the end. The requirement is not a B2 result. It is B2 validated in all skills.

All skills means no averaging

This is the practical difference between the CTI requirement and the score most students think they need.

A test that reports an overall band lets strengths cover weaknesses. Somebody with excellent reading and listening and shaky speaking can land an overall band that looks like B2 while their speaking sits below it. Under a rule written as validation in all skills, that profile has not met the requirement.

It is the same logic France applies in its university certification, where the CLES refuses to compensate between papers and a single weak paper voids the certificate. Two different French bodies, the same principle: the level has to be real in each skill.

The consequence for preparation is uncomfortable but simple. Work on your worst skill, not your best one. Pushing reading from B2 to C1 buys nothing here. Moving speaking from B1 to B2 is the whole game.

For most engineering students the weak skill is speaking, for the ordinary reason that it is the only one you cannot practise silently. Why your English speaking is not improving covers why the other three feel like progress while this one stalls, and a free daily session is the cheapest way to stop the gap widening before a deadline.

Why an external test is involved

The reference document does not leave assessment to the school alone:

L'évaluation associe une évaluation interne par des mises en situations sur des compétences professionnelles et une évaluation externe par un test reconnu dans le milieu professionnel ou académique.

Assessment combines an internal evaluation, through situational tasks on professional competences, and an external evaluation by a test recognised in professional or academic circles.

That single clause explains something visible in every French engineering school: the presence of an external English test as a graduation condition. It is not a school preference, it is written into the accreditation reference.

Note what the clause does and does not do. It requires an external recognised test. It does not name one, and it does not set a score. Schools choose, which is why requirements differ between establishments and why the right number to chase is the one your own school publishes rather than one you read on a preparation site.

C1 is recommended, not required

Immediately after setting B2 as the minimum, the same document adds:

Toutefois, en langue anglaise, le niveau C1 est recommandé pour tous les ingénieurs dans les quatre activités de communication langagière.

However, in English, C1 is recommended for all engineers across the four language communication activities.

So the accreditation body publishes both a floor and a target, and they are a full CEFR level apart. B2 gets you the diploma. C1 is what it says engineers should have.

Whether that matters to you depends on what comes after the diploma. For a first job in France, clearing the requirement is enough. For an international role, the gap between the two levels is the gap between managing a conversation and running one. The Council of Europe describes B2 as interacting "with a degree of fluency and spontaneity that makes regular interaction with native speakers quite possible without strain for either party", and C1 as expressing yourself "fluently and spontaneously without much obvious searching for expressions".

CEFR levels explained for speaking walks the ladder, B2 First versus C1 Advanced speaking shows what the jump looks like inside one exam family, and twelve daily speaking drills from B1 to C1 is built for exactly that climb.

The exceptions, and what they are not

Two exceptions appear alongside the main rule for initial training:

• In continuing education, B1 in English may be accepted exceptionally.
• In programmes taught entirely in English, B1 in French as a foreign language may be accepted exceptionally.

For the continuing education and validation of experience routes, the document states that a B2 English certification is the aim for obtaining the engineering diploma, with B1 acceptable exceptionally.

The word doing the work in all three is exceptionally. These are not parallel routes with a lower entry price, they are named exceptions inside a rule that otherwise sets B2. Planning around an exception is planning around somebody else's discretion.

The trap: two different references

Here is where published summaries go wrong, and where we nearly did.

The CTI also publishes an international reference, for programmes accredited outside France. That document states B2 required in English without mandatory certification, alongside other relaxations such as ECTS credits not being compulsory outside the European Higher Education Area.

Those two words, without mandatory certification, are the opposite of the domestic clause requiring an external recognised test. Quote the international line at a French school and you have quoted the wrong document.

We flag this because the two live under similar headings on the same site, and because the condition that separates them sits in the heading rather than in the sentence. If you are checking a requirement for yourself, confirm which reference applies to your programme before acting on any sentence from either.

Which test to take

The reference requires an external recognised test and names none, so the honest answer is that your school decides. What we can do is lay out the options France itself provides, since both are state certifications and both are unusual in one respect.

Both French state certifications never expire, which matters if you will need to show a level again later in your career. The CLES guide covers the university route and its no-compensation rule, and the DCL guide covers the state diploma with fixed national session dates, including the September registration deadline for the last English sitting of 2026.

Whichever your school accepts, the preparation that moves a validated level in all skills is the same: more speaking, more often, about things you did not prepare. Role play scenarios for speaking practice and finding an online speaking partner are the realistic routes, a 30 day plan to improve speaking and speaking exercises for adult learners fit around a heavy course load, how to improve English pronunciation targets clarity rather than accent, and online methods to build confidence in English addresses the block that keeps people silent.

If you are looking at exam formats to see what B2 and C1 speaking actually demand, the C1 Advanced Speaking format, our Cambridge B2 First overview and Linguaskill Speaking cover three very different shapes.

What we could not verify

We did not verify any individual school's required score. The accreditation reference requires an external recognised test without naming one or setting a threshold. Your school publishes its own, and that is the number that binds you.

We did not verify which tests count as recognised. The wording is a test recognised in professional or academic circles, and we have not found a published list.

We have no data on which skill students most often fall short in. The structural argument in this guide stands on the wording of the rule, not on a pass-rate breakdown we do not have.

We have not reproduced any marking scale.

We read the 2025 edition of the reference document. Accreditation references are revised, so check the current edition before relying on any clause here.

How we researched this guide

Every quoted clause comes from the Commission des Titres d'Ingénieur's own reference document, the Références et Orientations 2025, downloaded as a PDF from the CTI site and read in full rather than summarised from a preparation blog. The international reference clause comes from the CTI's page on international referentials, read in a browser.

The search results for this topic are dominated by commercial test-preparation sites, several of which state a required score with confidence. We did not use any of them. The accreditation reference sets a level and an assessment method, not a score, and the difference between those two claims is the whole point of this guide.

We very nearly published the wrong rule. The first CTI page we opened carried the line about B2 without mandatory certification, which reads like the answer until you notice it sits under the international heading and applies to programmes accredited abroad. Reading the domestic reference gave the opposite requirement. We have kept both in the guide so the distinction is visible rather than invisible.

The CEFR descriptors come from the Council of Europe's global scale, Table 1.

Practise speaking, from SpeakShark

SpeakShark is an AI English speaking practice app, and it is our pick for this requirement because of the phrase at the centre of it. Validation in all skills removes the averaging that lets people ignore speaking until the last month. Speaking improves with hours spent talking and with nothing else, and hours are easier to find when there is no partner to schedule. You talk, the AI answers what you actually said, and you get speaking feedback while the conversation is still going. The free tier gives basic feedback; the detailed pronunciation and grammar breakdown is on Premium.

Being straight about the limits: a free session runs five minutes with four turns, which suits daily practice rather than a full mock exam.

Start free with three sessions a day and no card. Paid sessions run ten minutes with unlimited turns. Limits are on the pricing page, and how it works walks through a full session.

We are a speaking improvement tool. We are not an exam preparation provider, and we are not affiliated with Cambridge English, the IELTS partners, Pearson or any exam board. For test format, booking and official practice material, go to the exam body directly. Use SpeakShark to make your spoken English stronger, and use official material to learn the test.

• Site: speakshark.com
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Sources

• Commission des Titres d'Ingénieur, Références et Orientations 2025: the B2 minimum to validate in all skills, the combined internal and external assessment clause, the C1 recommendation across the four language activities, and the continuing education and English-taught exceptions
• Commission des Titres d'Ingénieur, référentiels internationaux: the separate international clause stating B2 in English without mandatory certification, which applies to programmes accredited outside France
• Council of Europe, CEFR Table 1, common reference levels global scale: the B2 and C1 descriptors the requirement is written against

FAQ