ASD-STE100 in a nutshell

ASD-STE100 Simplified Technical English (STE), is a controlled natural language developed to make technical documentation clearer, safer, and easier to translate. Originally created for aircraft maintenance documentation, STE is now widely used across industries where precision and consistency are critical.

An international standard to write clear, safe, and translatable technical documentation
A controlled vocabulary of approved words, with clear definitions and usage examples
A set of writing rules covering sentence structure, grammar, and style
A method to help writers reduce ambiguity and improve usability

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You can request a free official copy of ASD-STE100 (Issue 9)

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Why use STE?

STE Increases clarity for end users — especially non-native speakers
STE reduces errors in procedures and maintenance instructions
STE improves translation quality and reduces localization costs
STE supports regulatory compliance and safety documentation
STE aligns global teams through consistent terminology

Who uses STE?

Aerospace and defense organizations
Rail, maritime, and heavy machinery manufacturers
Technical service providers and localization teams
Companies that manage multilingual or safety-critical documentation

My role

I’ve worked with STE for over a decade — not just as a trainer or consultant, but as an active contributor to the standard.

STE certified training

International Partner of the ASD Simplified Technical English Maintenance Group (STEMG)
Deputy Team Leader of the Italian STE Support Team
Certified STE Trainer
STE Expert in global documentation teams

How I can help

Let's talk!

Training - In-house or online courses (certified)
Review - Review and editing of existing documentation for STE compliance
Consulting - Terminology management, rule implementation, and structured writing