STANAG 6001 and SLP glossary
Updated 2026-08-18 · Independent educational resource
How to read this page
Independent resource. SLP Command is not affiliated with NATO, BILC, any Ministry of Defence, or any official examining body. National tests implement STANAG 6001 descriptors differently. Always confirm administration details with the authority that runs your sitting.
Every entry below carries one of three labels. They are not decoration — they tell you how much weight a sentence can bear.
- Official — stated by the standard or its custodian.
- Educational interpretation — how testing practice and this site read the standard. Useful, but not a rule you can cite back to anyone.
- SLP Command decision — a choice this product made. Nobody else is bound by it, least of all the body that runs your sitting.
Administration — dates, eligibility, registration — is national and changes. Confirm it with the authority that convenes your exam, never with a glossary.
Terms
- STANAG 6001Official
The NATO-agreed standard that describes language proficiency on a scale of levels, used to write curricula, develop tests, and record and report a person's ability in four skills.
It describes what a level means. It does not supply one exam paper that every member nation sits — each nation builds its own test against the descriptors, so one nation's Level 3 paper is not automatically another's.
Also written: Standardization Agreement 6001
- SLP — Standardized Language ProfileOfficial
The record of one person's proficiency in one language, written as four digits in the fixed order Listening, Speaking, Reading, Writing.
The order is L-S-R-W, not alphabetical and not the order most courses teach in. A profile is four separate judgements reported together — never an average, and never a single overall score.
In English-language sources "SLP" also stands for speech-language pathology. That field is unrelated to this one.
Also written: SLP · language profile · four-digit profile
- BILCOfficial
The NATO body associated with STANAG 6001, which publishes information about the standard and coordinates language-testing practice between member nations.
BILC's public pages describe Edition 5 as the agreed edition for proficiency levels. SLP Command cites BILC. It is not affiliated with BILC and holds no accreditation from it.
Also written: Bureau for International Language Coordination
- Level 2Official
Limited working proficiency: able to handle routine social and workplace language on familiar topics, getting the facts reliably but not the implication, the hedge or the joke.
Level 2 is a real achievement and the stated minimum for many roles. It is not "Level 3 with fewer adjectives" — the difference is the kind of thinking the language has to carry, not the amount of vocabulary.
Also written: SLP Level 2 · STANAG Level 2 · functional · limited working proficiency
- Level 3Official
Professional proficiency: able to handle abstract topics, argument, implication and unexpected turns, with the precision a professional exchange needs.
This is the level most candidates underestimate. The jump from 2 to 3 is a change of task, not a longer word list: at 3 you are asked to reason, qualify and take a position, not to report facts accurately.
Also written: SLP Level 3 · STANAG Level 3 · professional · minimum professional proficiency
- SLP 2222Official
A profile of Level 2 in all four skills: Listening 2, Speaking 2, Reading 2, Writing 2.
Not "an average of 2". Each digit is a separate judgement, and a posting that requires 2222 usually requires every digit to reach 2.
Also written: 2222
- SLP 3333Official
A profile of Level 3 in all four skills: Listening 3, Speaking 3, Reading 3, Writing 3.
Because every digit must stand on its own, the skill you avoid training is the one that decides whether you hold 3333 or 3323.
Also written: 3333
- ListeningOfficial
The first digit of an SLP: understanding spoken language, at the speed and in the conditions the level describes.
Rated on what you can follow in real time — connected speech, numbers, polarity, the speaker's stance — rather than on how many words you could define if the recording stopped.
Also written: comprensión oral
- SpeakingOfficial
The second digit of an SLP: producing spoken language that performs the task the level requires.
A speaking rating is about what your speech accomplishes — describing, narrating, arguing, qualifying — not only about accent or fluency.
Also written: expresión oral
- ReadingOfficial
The third digit of an SLP: understanding written texts of the type and difficulty the level describes.
At Level 2 the work is mostly locating what a text states. At Level 3 it is reconstructing what a text argues, including what it implies without saying.
Also written: comprensión escrita
- WritingOfficial
The fourth digit of an SLP: producing written text that does the job the task sets, at the level's standard of accuracy and organisation.
Good English on the wrong brief is the most common way a strong writer scores below their level.
Also written: expresión escrita
- Rating factorsEducational interpretation
Proficiency ratings in the STANAG/ILR family are commonly judged across four factors — the content handled, the tasks performed, the accuracy achieved, and the type of text produced — rather than as one impression.
Reading these separately is what lets a rater say why a performance sat where it did. SLP Command's Speaking evaluation reports exactly these four and names which one held the performance back.
The four-factor reading is standard testing practice, not a sentence quoted from the agreement. Treat it as a lens, not a rule.
Also written: content, tasks, accuracy, text type · four factors
- Limiting factorEducational interpretation
The weakest of the rating factors in a single performance — the one that caps the level, however strong the others were.
Proficiency scales do not average. A response with Level 3 content and Level 2 accuracy is not "somewhere between": the weak factor decides. This is why a fluent speaker can be capped by precision, and a precise one capped by the range of tasks they attempt.
Also written: limiting criterion
- Task achievementEducational interpretation
Whether a response actually did the job the prompt set — right audience, right purpose, required content — judged separately from how good the language was.
Separating task from language is the distinction that explains most surprising scores. A well-written text about the neighbouring topic has not performed the task it was given.
Also written: on-task · doing the task set
- PracticeSLP Command decision
In SLP Command, a short untimed session in one skill at your target level, returning an explanation for each item rather than only a mark.
Practice exists to change what you do next. Because it is untimed, a practice result is weaker evidence about a real sitting than an exam simulation is.
Also written: practice session
- Exam simulationSLP Command decision
In SLP Command, a full timed paper built to Level 2 or Level 3 formats, used to produce evidence under the conditions of a sitting.
Independent practice, not a national paper and not a certificate. A simulation will not be converted into a percentage chance of passing — that number would require calibration against official outcomes this product does not hold.
Also written: mock · simulacro
Questions
Why is each definition labelled?
Because “the standard says so”, “testing practice reads it this way”, and “SLP Command decided this” are three different kinds of claim. Presenting them in one voice is how a product decision quietly becomes an exam requirement in someone else's citation.
Does SLP mean speech-language pathology?
Not here. In this field SLP is a Standardized Language Profile under STANAG 6001. The speech-language pathology profession is unrelated and dominates general search results for the bare acronym.