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Automotive & Mobility

Type approval,
traced to the evidence.

Homologation is mostly proof: that each regulation applies or does not, that each test was passed, and that the vehicle being built is the one that was approved. The documents carrying that proof are where the time goes.

Last reviewed 30 October 2026 · Engineering guidance, not legal or regulatory advice.
All Automotive & Mobility →
Pixel illustration for Homologation Documents: a lit inspection lens examining one item on a production belt.

What homologation involves

Vehicle homologation is the process of proving a vehicle, system or component meets the technical regulations of the market it will be sold in, so an approval authority can grant type approval. In the EU that runs under Regulation (EU) 2018/858, with the General Safety Regulation (EU) 2019/2144 and dozens of UN regulations under the 1958 Agreement, from lighting and braking to cybersecurity (UN R155) and software updates (UN R156). The US instead relies on manufacturer self-certification to the FMVSS.

The work is documentary. An information document describing the vehicle, test reports from a technical service for each applicable regulation, and conformity-of-production arrangements showing that production matches what was approved. When a part, a supplier or a software release changes, someone has to work out which approvals are affected.

That impact question is where AI helps most: reading the change against the information document and the regulations, and listing every approval it could touch, with the clause cited. The homologation engineer and the approval authority still decide.

What it handles

01

Applicability matrix

For a vehicle category and market, the applicable regulations and their current series of amendments, with the reasoning for each in or out.
02

Information document drafting

Entries filled from engineering and PLM data, each cited to its source, with missing values flagged rather than estimated.
03

Change impact

A design, supplier or software change checked against the file, listing every approval and test report that may need extension or retest.
04

Not: the approval decision

Whether a change needs a new test or an extension, and whether the vehicle conforms, is decided by your homologation team, the technical service and the approval authority.

How a change is assessed

CHANGE PATH
  1. 01
    Engineering change

    part, supplier, software

  2. 02
    Read the file

    information document, reports

  3. 03
    Map regulations

    UN and EU, current series

  4. 04
    Impact list

    approvals affected, cited

  5. 05
    Engineer decides

    extension, retest or none

  6. 06 · Branch / escalation
    Unclear

    raised with the technical service

Solid: the assessment pathDashed: open questions for the engineer and technical service
The system lists what a change could affect and why. The homologation engineer decides what to do about it.
Questions

Questions about Homologation Documents.

What is vehicle homologation?

It is the certification that a vehicle, system or component meets the technical rules of a market, granted by an approval authority after testing by a technical service. In the EU it is called type approval and runs under Regulation 2018/858 and the UN regulations of the 1958 Agreement. Without it, a vehicle cannot be registered for road use in that market.

What is the vehicle homologation process?

Broadly: determine which regulations apply to the vehicle category and market, prepare the information document, test the vehicle or systems with a technical service, submit the reports to the approval authority, and set up conformity-of-production controls. After approval, every relevant change must be assessed and, where needed, approved as an extension.

Can AI help with type approval documentation?

Yes, with the documentary part: building the applicability matrix, drafting information document entries from engineering data, keeping test reports linked, and assessing which approvals a change could affect. It cannot take any regulatory decision. Each output cites the regulation and source record, so your homologation engineer can verify it quickly.

Shipped & in build

Real work. Check it yourself.

What we built, what stage it is at, and a link to the live thing wherever there is one.

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The yourOS homepage on a phone, with its compact navigation, welcome film button and bento cards.
youros.tech — the homepage bento hero
Our own · coming soon

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The Sonora homepage on a mobile viewport, showing the same hero reflowed to a single column.
sonora.com — homepage, 1440×900
Live · iOS · Android

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What we built
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The updated Podswap homepage on a phone, with its floating navigation, Instagram and TikTok engagement headline and tilted tool cards.
podswap.app — homepage, 1440×900
Five platforms

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What we built
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The unOpen.AI homepage on a mobile viewport.
unopen.ai — homepage, 1440×900
Prototype · closed beta

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What we built
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coherence.com on a mobile viewport, reflowed to a single column.
coherence.com — homepage, 1440×900
Live

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The new Domain Booth homepage on a phone, reflowed to a single column.
Our build of the Domain Booth homepage — 1440×900
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What we built
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Who we have built for

Twenty-one years. Names you know.

See all of our work →
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Let’s talk

Know what
a change touches.

We start with one recent engineering change and show the impact list we would have produced for it.

30-minute technical call · no deck