ASD-STE100 FAQ

ASD STE 100 (ASD-STE100) is the specification for Simplified Technical English. It is a controlled language for technical documents. It gives writing rules and a dictionary of approved words.

The Simplified Technical English Maintenance Group (STEMG) of ASD maintains the standard. ASD is the AeroSpace, Security and Defence Industries Association of Europe.

No. STE started in aerospace maintenance. Today, companies in defence, automotive, energy, medical devices and software also use it.

Get it only from the official ASD website, asd-ste100.org. This site links to the official file. It does not host a copy.

No. Our checker is a simplified heuristic tool. It is not an official ASD-STE100 conformity check.

No. STE Guide is an independent educational resource. It is not affiliated with or endorsed by ASD.

No. Plain English is a set of general guidelines. STE is a controlled language with strict rules and a defined dictionary of approved words.

ASD has made the specification available from its official website. Check asd-ste100.org for the current conditions of use, because they can change.

At the time of writing, the latest issue is Issue 9. Always check the official website for newer issues.

Share the link to the official file, not a copy. ASD owns the copyright. A link makes sure that other people get the current, correct version.

We do not recommend it. Unofficial copies can be old or changed. Download the file only from the official ASD website.

Most writers learn the basic rules in a few days. To write fluently in STE, you need several weeks of regular practice and feedback.

Not always. Some employers and contracts ask for formal training. Official training is available through providers that ASD recognises.

AI tools can help, but they make mistakes. Give the tool clear rules, then check the result yourself against the official standard.

Yes. STE uses a small vocabulary and short sentences. This makes it easier to write and read for non-native speakers of English.