Industry-side analysis of the EU AI Act impact is in "EU AI Act Impact on ITWA Exhibitors". This article describes three internal process changes we implemented as a Shenzhen translation company to translate these requirements into practical client service.
Process one: modification-ratio tracking for every MTPE assignment
This is the core change. The EU Commission's Code of Practice leaves "substantial modification" undefined — the grey zone where MTPE sits. Current German practice treats 50% modification as the threshold below which marking is requested, and we adopted this as our working baseline.
The implementation is concrete. For every MTPE assignment, the translator works with Word revision tracking enabled, starting from the raw machine-translated output. When complete, our internal system automatically computes the revision ratio, excluding formatting-only changes (spaces, punctuation). Ratios below 40% are flagged as "client must assess marking"; ratios above 50% are flagged as "substantial human modification confirmed"; the 40–50% band requires senior reviewer confirmation.
One real example: an electronic components exhibitor at ITWA yesterday brought us an 18-page product specification sheet that had been translated directly through DeepL. Their German buyer had requested marking. We reprocessed it as MTPE — translator spent two days adjusting sector terminology and product parameter phrasing. Final revision ratio: 58%. We delivered the sheet together with the modification-ratio statistics, and the German buyer accepted it without requiring marking.
Process two: human-translation provenance certificates
Files translated fully by human translators require no marking under the Act — but you need to be able to prove they were human. We now generate a provenance record for every document translation assignment: translator ID, start and completion timestamps, source term library version, reviewer signature. Exhibitors can present these records to EU buyers as compliance evidence. Three ITWA exhibitors have already used our certificates to clear German-side compliance checks.
The certificate is not a formal legal document, but EU procurement teams rely on it during due diligence — demonstrating that you can show a translator's working hours and reviewer sign-off carries more weight than a verbal claim.
Process three: three compliance paths offered to clients
Every industrial client serving EU markets now receives three options, chosen according to their turnaround time and budget:
Path A: full human translation with provenance certificate. Highest cost, longest turnaround, zero marking. For regulatory submission files — CE, FCC import documents.
Path B: MTPE with target revision ratio of 50% or above, plus provenance certificate. Moderate cost, two to three times faster than full human, no marking if revision ratio is met. Our recommended path for most exhibitors.
Path C: MTPE with voluntary "AI-assisted translation" marking. Fastest path, but file must carry compliant marking. For internal reference and non-regulatory marketing material.
One real ITWA exhibitor case
Yesterday afternoon an automotive electronics exhibitor at ITWA came to our on-site desk with an urgent request. Their German Tier 1 buyer had sent the compliance requirement the previous day — the buyer needed ADAS camera product specification sheets delivered next week. The exhibitor's prior workflow was DeepL direct plus a quick human pass — a practice that no longer passes German-side checks.
We proposed Path B: MTPE targeting 55% revision ratio. Two translators with automotive electronics experience started at 3pm, finished 22 pages by 8pm, and hit a final revision ratio of 61%. Provenance certificate included. The exhibitor told us the speed was double what they had expected, and the German buyer would almost certainly accept it — no marking needed because the ratio clears the threshold.
For translators, what these process changes mean day-to-day — tracking, compliance awareness, revision-ratio techniques — is in "What MTPE Translators Need to Know After the EU AI Act". For EU AI Act compliant translation services, contact us.