The answer is mandatory—not merely a recommendation, but a compliance requirement. The EU Machinery Directive explicitly states that instruction manuals must be provided in the official language(s) of the Member State where the product is placed on the market; markets such as Saudi Arabia and Brazil also mandate the use of the local language.
Failure to get the language right can lead to issues ranging from customs clearance delays to the seizure of the entire shipment or exposure to product liability risks.
1.
The EU: The Strictest Multilingual Requirements
The EU Machinery Directive (2006/42/EC) stipulates that all machinery and related products must be accompanied by instructions in the official language(s) of the country of sale; these can be the “original instructions” or a “translation of the original instructions” (the translated version must be accompanied by the original).
Key Note: The EU Machinery Regulation (2023/1230) comes into effect on January 20, 2027, eliminating the distinction between “original” and “translation” versions—each language version will hold equal legal validity. Products sold in Germany require German instructions, France requires French (Toubon Law), Spain requires Spanish, and Italy requires Italian; furthermore, instructions, safety information, and declarations of conformity must all be translated accordingly.
Germany also enforces stricter national legislation, the MaschinenDG (effective December 6, 2025): for machines placed on the German market, the instruction manual, Annex III safety information, and EU Declaration of Conformity must be provided in German; non-compliance will result in regulatory penalties in Germany.
Technical documentation (such as drawings and risk assessments) may be in any official EU language, though market surveillance authorities may request translations of specific sections.
II. Middle East: Arabic-English Bilingualism is a Mandatory Requirement
The six Gulf states (Saudi Arabia, UAE, etc.) generally require Arabic-English bilingual documentation: Saudi Arabia’s SABER certification mandates a complete Arabic version (or bilingual Arabic-English) for user manuals, covering safety warnings as well as installation and maintenance instructions; the draft GHS (Globally Harmonized System of Classification and Labelling of Chemicals) regulations for 2026 also require bilingual Arabic-English labeling.
For hardware exports to the Middle East, bilingual manuals are the standard—submissions containing only English versions risk rejection by customs or certification bodies.
III.
The Americas and Other Markets
USA: English is sufficient; Brazil and Angola: Brazilian Portuguese (PT-BR) manuals are legally required due to consumer protection regulations—non-compliance regarding language is a leading cause of customs clearance delays and registration failures; most South American countries prioritize Spanish; Russia and Central Asia: Russian; Japan: Japanese; Southeast Asia: English is generally acceptable, though local languages (e.g., Indonesian, Vietnamese) help reduce customer complaints.
Decision criteria: Consult the destination country’s mandatory regulations (CE/certification requirements) and local consumer protection laws.
IV.
Managing Language Versions
First, English as the master version: Draft the standard version in English first (ensuring accurate terminology, numbering, and charts) before translating into other languages to avoid errors associated with “translation of a translation”; second, prioritize visuals over text: Use diagrams, symbols, and icons for installation steps—which are universally understood across languages—and use text only for supplementary information; third, standardize terminology: Engage professional translators (specializing in mechanical engineering, with native-speaker review) for technical terms such as torque, tolerances, and materials; avoid direct machine translation; fourth, version control: Provide multilingual PDF packages with the shipment (via USB drive or QR code) and make them available for download on the official website; ensure all language versions are updated whenever the product is updated; fifth, declarations: For the EU, manuals must be marked as “Original instructions” or “Translation of the original instructions.”
Industry insiders advise that multilingual instruction manuals represent a “compliance cost” rather than a “value-added cost.” The priority is to ensure compliance with the mandatory language requirements of target markets (such as EU languages, Arabic, and Portuguese) before considering cost reductions.
For hardware products destined for the EU, you should prepare the full set of language versions now in accordance with the 2027 regulations, rather than waiting until the rules take effect to play catch-up.
