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Automotive AI agent · Homologation

Homologation & FMVSS Certification AI Agent

Assemble the FMVSS applicability and evidence matrix for a build, draft the Part 567 label content and the Part 555 petition, and hold the file for the engineer who certifies.

Typical delivery
4–6 weeks
Deployment
Your stack
Engineer signs
Pre-label
After launch
Agent Care

What this agent does

Assembles the evidence, never the label

In

  1. 01

    A standard applies, and the matrix is built from the vehicle type and the ratings on the base label.

  2. 02

    A build is altered, and the matrix is re-run when the work moves GVWR or GAWR across a threshold.

Reason

  1. 03

    A chassis arrives, and its Part 568 incomplete vehicle document is parsed standard by standard.

  2. 04

    A standard the IVD makes no representation on is surfaced as work the final stage now carries.

  3. 05

    A date is elected inside the window Part 568 allows, and the FMVSS edition it lands on is named.

Decide

  1. 06

    A label is drafted to the Part 567 wording for the certifying party — alterer, intermediate or final stage.

  2. 07

    A standard cannot be met, so a Part 555 petition is drafted against § 555.7(g) as amended 31 July 2026.

Out

  1. 08

    A file is retained with its matrix, its evidence, the drafted label and the engineer who certified.

  2. 09

    Execute write actions only inside the approval boundaries agreed during implementation.

Product statement

The agent assembles and drafts; a named engineer reaches the compliance conclusion and affixes the label, under the reasonable-care standard in 49 U.S.C. § 30115.

Example workflow

One build, chassis to label

  1. 1Build receivedChassis record, IVD, order specification or alteration work order
  2. 2Applicability determinedVehicle type, GVWR and GAWR, the standards in scope and the edition dates they carry
  3. 3Evidence reconciledTest reports, supplier statements, the IVD chain and confidence
  4. 4Controls appliedMatrix coverage checks, elected-date window checks, label-wording rules and confidence threshold

No human action required

Stages 1 to 4 run unaided, and no label is affixed at any of them — the agent is assembling a file, and the engineer's lane opens at the confidence gate.

5DecisionDivides at the confidence threshold
High confidence

Goes to the engineer to certify.

Low confidence

Adds a compliance review first.

Engineer certifies

The file is held with its matrix, its evidence and the standards left open.

Certify · Return to build · Escalate to compliance

Certified — released to the file

  1. 6Build systems updatedOnly where write access and approval policy allow it
  2. 7Outcome evaluatedScope accuracy, returned builds, evidence gaps and post-delivery information requests

Returns

Builds sent back for evidence are counted in the evaluation.

What should not run autonomously

Human approval stays in control

Outside the boundary — human approval required

8 items

  • Affixing the certification label to the vehicle.
    • Concluding that the build conforms to a standard.
    • Deciding which standards the alteration affected.
    • Signing or submitting a Part 555 petition.

  • Automation boundary

    Agent acts unaided

    • ✓Build the applicability matrix from the type,.
    • ✓Parse the Part 568 IVD chain and surface the standards.
    • ✓Draft the Part 567 label content for the certifying party to read.
    • ✓Name the standards with no evidence behind them and hold the file.

    Any write happens inside the boundaries agreed at implementation, never ahead of the label.

    • Electing the date the build is certified to.
    • Judging whether a device may be made inoperative.
    • Whether Part 566 identification reaches this shop.
  • Changes to standard sources or evidence rules.

Example output

One altered build, annotated

Everything the agent assembles is attached to the build it was drawn from.

Certification file · single build

Illustrative example
Build
Accessible van conversion
Alteration
Floor lowered, raised roof and a lift fitted
Label scope
Standards affected only
Standard of record
FMVSS in effect, March 2026
Confidence
91%
Statement
Drafted for the alterer to affix

As received

Taken from the work order and the base vehicle's certification label.

Evidence assembled

  • Base vehicle label
  • Alteration work order
  • Structural test report

Why this standard applies

The lowered floor moved the seating reference and a person still decides.

What the score decides

Below the configured threshold the file picks up a compliance review before it.

Action

CertifyReturn to buildEscalate to compliance

Value

Where AI adds value

The same four claims, placed at the point in the workflow where each one applies.

Where the value lands

Value 01 – 04

Every build that leaves

From the build record

03Applicability

Work the delta, not the vehicle

Use the standards in force on the elected date, the base label's ratings and the IVD chain.

01Approved path

You certify yourself here

Nothing is filed and no agency clears the build first; § 30112 still bars the sale, so the file is the record.

02Human review

Send the read to the open standards

Standards with no evidence, and dates outside the permitted window, are marked so the engineer starts there.

04

Build an evidence trail

The standard, the test it was met by and the engineer who certified stay on the build.

Integrations

Typical integrations

Five system groups connect to the same agent. Which of them are in scope is decided in discovery.

  • Standards and rulemaking

    • eCFR
    • Federal Register
    • NHTSA dockets
    • interpretations

  • Test and evidence

    • Test-lab reports
    • CAE
    • Supplier conformity statements

  • Build records

    • ERP
    • MES
    • work orders
    • Bills of material
    • VIN records

Agent

Homologation & FMVSS certification

  • Reads the build
  • Builds the matrix
  • Drafts the label

  • Document control

    • IVD and label archives
    • PLM
    • quality systems

  • Observability & evaluation

    • OpenTelemetry
    • Langfuse
    • Supported monitoring/evaluation sources

Integration availability depends on the client's existing systems and API access.

Agent controls

Six layers between the model and the label

Six wraps between the model and the file. What none of them catches is named in the map below.

L6 · Outermost — last line of defence

Inward → L1 · closest to the model

L6Rollback / safe modePull the agent back to gap-listing when evaluation or production signals degrade.Roll back
L5Version monitoringTrack model, prompt and standard sources, including rules in force but not final.Track
L4TraceabilityRecord the matrix, the evidence, the open standards and the certification time.Record
L3Engineer certifiesHold the file for a named engineer; it governs release, not whether the build conforms.Gate
L2Policy guardrailsTest the file against the Part 567 wording and the § 555.9 exemption label; a failure returns the build.Restrict
L1Confidence thresholdsRoute low-confidence applicability calls to a compliance review before a label is drafted.Require review
Model coreMatrix assembled — standards in scope, evidence held, open gaps and confidence
L1 – L2
Test whether the file may stand
L3
Puts the certification in an engineer's hands
L4 – L5
Keep the standard and the test behind it
L6
Reverts to gap reporting when signals degrade

How Nestack evaluates it

Evaluate the whole certification file — not only the label at the end.

Coverage runs the whole depth of the workflow, and every layer is cut by slice.

Surface — the label the vehicle carries

  1. E1Final-output evaluationWas every standard the alteration affected identified?
  2. E2Step-level evaluationDid the agent use the standards in force on the elected date?
  3. E3Tool evaluationDid it read the right build record and the right IVD?
  4. E4Confidence calibrationDo low-confidence applicability calls actually get overturned more?
  5. E5Slice evaluationHow does performance change across specific build configurations?
  6. E6Business outcomeHow many builds left with a standard nothing in the file evidenced?

Floor — the outcome the manufacturer answers for

Failure modes

Where each failure originates in the agent

Seven failure modes, placed at the stage each one originates.

Agent lifecycle

Direction of processing →

  1. 01 · Retrieval

    1 mode

    • HM-03

      Superseded standard text

      Today's standard pulled, not the edition on the elected date.

    Stage gathers

    Build record, IVD, standards and test reports

  2. 02 · Reasoning

    2 modes

    • HM-04

      Scope read too wide

      A label is drafted as whole-vehicle conformity.

    • HM-06

      Threshold not re-run

      A changed rating is never carried back to the matrix.

    Stage proposes

    Standards in scope, evidence held and confidence

  3. 03 · Tool / write

    2 modes

    • HM-02

      File closed with a gap

      A build is released with a standard unevidenced.

    • HM-05

      Evidence reused

      One test report is carried across two configurations.

    Stage writes

    Only where write access and approval policy allow it

  4. 04 · Output

    1 mode

    • HM-01

      Label dated wrong

      The work-order date is used, not the month of the build.

    Stage returns

    The file the engineer certifies and the label states

  5. 05 · Change / Version

    1 mode

    • HM-07

      Silent scope regression

      A rule change widens what the agent will call clear.

    Stage tracks

    Model, prompt, standard sources and evidence rules

  • Sev-1 · a label goes on without a file
  • Sev-2 · a standard is missed in scoping
  • Sev-3 · source degrades, build goes to review
See the complete Automotive failure-mode catalogue

Affected slices

One configuration can carry the missing files

A line-wide coverage figure can read well while one build configuration carries nearly every standard left unevidenced. Nestack reports the unevidenced-standard rate by slice, not only in total.

Slice performance — reported separately, not only in aggregate

Illustrative example
SliceFailure rateLiftLift vs. thresholdStatus
Multi-stage ambulance builds7.6%3.5×Review
Accessible van conversions6.3%2.9×Review
GVWR-threshold alterations3.8%1.8×Watch
Single-standard alterations1.8%0.8×Normal

Bar: unevidenced-standard lift vs. single-standard baseline · scale 0–4.0× · tick marks the 2.0× review threshold

2 of 4 slices over threshold

Evidence-linked improvement

A cycle ends with one more standard case

A cycle closes when the undocumented standard is a case the next release has to catch. That suite is what the next build certified is measured against.

Improvement cycle · five stages

Switchback — the path turns at Improve and returns at Learn

  1. 01

    Detect

    Unevidenced-standard rate rises in one configuration.

  2. 02

    Diagnose

    The upfit that left the floor with a label and no file behind it is traced back to the standard nobody scoped.

  3. 03

    Improve

    The correction ships numbered, with the builds that prompted it attached.

  4. 04

    Verify

    Nothing ships while a touched standard case is failing; it runs until it clears.

  5. 05

    Learn

    It is kept as a standing case, and the standard rules are revised alongside.

  6. Learn → Detect

    The return edge. What follows is measured against a suite that grew by one.

Typical build scope

Twelve workstreams across six weeks

The build scope read against the delivery timeline. Week structure follows the six-week plan — discovery, sources, applicability logic, evaluation, integration, then production validation and handover.

Workstream

Week 1Week 2Week 3Week 4Week 5Week 6

  1. 01Certification workflow discovery and boundary setting.Week 1
  2. 02Build-record and evidence assessment.Week 1, Week 2
  3. 03FMVSS applicability, edition and evidence mapping.Week 1, Week 2
  4. 04Build-record ingestion and normalisation.Week 2
  5. 05Applicability logic and edition pinning.Week 2, Week 3
  6. 06Confidence scoring and gap routing.Week 3
  7. 07Engineer certification workflow.Week 3, Week 4
  8. 08Build-record and PLM integration.Week 5
  9. 09Standard and evidence cases.Week 4, Week 5
  10. 10Guardrails and labelling controls.Week 4
  11. 11Build-trail instrumentation.Week 5, Week 6
  12. 12Deployment, documentation and Agent Care handover.Week 6

12 workstreams · 6 weeks · bar shows the weeks a workstream is active — several run in parallel

Final scope and sequence confirmed in discovery

Engagement tiers

What each tier includes

Rows are the capabilities named in each tier's scope. Higher tiers include everything below them.

Capability✓ in scope · — not at this tierPilotOne configuration, one siteProductionProduction build systemsAdvancedMultiple sites / product lines
Introduced at Pilot
Matrix on your standards and builds✓✓✓
Engineer certification✓✓✓
Standard-coverage baseline✓✓✓
Introduced at Production
Reporting by configuration—✓✓
Certification workflow in your systems—✓✓
Approved write-back—✓✓
Build-record integration—✓✓
Introduced at Advanced
Multi-standard exemption rules——✓
Multi-stage build approvals——✓
High build volume——✓
Multi-standard certification controls——✓
Build priceFrom $5,000From $8,000Custom quote
Final build price
Confirmed after discovery based on integrations, workflow complexity, transaction volume, approval controls and deployment requirements.
Separate from build
Build pricing is separate from recurring Agent Care, which covers managed monitoring, evaluations, incidents and verified improvements after launch.

What we need from you

What you bring, and what we build with it

Each input maps to a piece of build scope and a week in the delivery timeline.

  1. 01Your build records and configuration structure

    Build-record ingestion and evidence mapping

    Week 1

  2. 02Representative certified builds

    Applicability baseline, edition pinning and evidence binding

    Week 2

  3. 03Your standard sources and test reports

    FMVSS applicability, edition and evidence-rule mapping

    Week 1

  4. 04Access to relevant APIs, feeds or exports

    Build-record and evidence-source assessment, then integration setup

    Week 2

  5. 05Builds you would not want labelled

    Alteration cases and the evaluation suite

    Week 4

  6. 06What no label may stand on

    Confidence scoring, gap routing, guardrails and labelling controls

    Week 3

  7. 07Named engineers to certify the builds

    Engineer certification workflow, then pilot and production validation

    Weeks 5–6

Nothing else is required

Deployment, documentation and Agent Care handover are ours.

Delivery timeline

Four phases across six weeks

The phases sit on the weeks the build really occupies, and the fifth runs two at once.

Phase

W1

W2

W3

W4

W5

W6

  1. DiscoveryW1
  2. BuildW2 – W3
  3. EvaluateW4 – W5
  4. Pilot & LaunchW5 – W6

Week focus

W1Certification workflow discovery, standard mapping and the boundary

W2Source integration and the applicability baseline

W3Applicability logic, confidence scoring and labelling controls

W4Evaluation suite, evidence-coverage checks and failure-mode testing

W5Build-system integration, pilot builds and targeted corrections

W6One build series certified under the compliance engineer, then handover

Reading the band
A bar covers only the weeks its work is named in. The week 5 overlap is real, not padding.
At the end of W6
The last checks clear on live builds and Agent Care picks up monitoring.
Duration
Six-week plan shown · typical delivery 4–6 weeks depending on scope confirmed in discovery.

Next step · Automotive AI agent

Build a certification agent around the file behind your label.

Show us a build, your evidence sources and who affixes the label. Whoever finishes the vehicle carries the certification — the alterer and the final-stage manufacturer, not the chassis OEM.

Typical delivery
4–6 weeks
Deployment
Your build records
Engineer signs
Pre-label
After launch
Agent Care available

Nestack Agents · Homologation & FMVSS certification

AGT-AUT-18 · Agent Care available after launch

Build a homologation agent

Four questions so the call starts from your actual setup — then pick a time that suits you.

About you
Your builds

No obligation. We’ll map the workflow, name the automation boundary and tell you if an agent is the wrong answer.