TISAX

Trusted Information Security Assessment Exchange — ENX Association / VDA (Verband der Automobilindustrie)

Also known as: ISA, VDA ISA, TISAX ISA6, ISA2027, Trusted Information Security Assessment Exchange

At a glance

Current version
ISA 6
Published 16 October 2023. source
Status
In force
Next deadline
in 53 days
ISA2027 applies to all TISAX assessments ordered from this date; the final month to open an initial assessment under ISA 6 is March 2027 source
Who must comply
Suppliers and service providers in the automotive supply chain whose business partners ask them to prove their information security with a TISAX label. source source
Written by
ENX Association governs TISAX, maintains the ISA catalogue through its Working Group ISA and approves audit providers; the VDA publishes the catalogue as VDA ISA. source source
Last change

Automotive industry standard for information security assessments, exchanged via the ENX portal. Suppliers and service providers in the automotive supply chain use a TISAX label to prove their security to business partners.

Recent changes

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  1. in 53 days ISA2027 applies to all TISAX assessments ordered from this date; the final month to open an initial assessment under ISA 6 is March 2027
  2. ISA2027.1 is released: a German version and a purely editorial update of the English ISA2027, with the substantive requirements unchanged
  3. The VDA publishes VDA ISA2027, the next catalogue, with an annual release cycle from now on
  4. ISA 6 becomes effective for TISAX assessments ordered from this date
  5. The first TISAX participants register

Version history

  1. ISA 6 Major versionCurrent

    Major revision of the ISA catalogue, effective for TISAX assessments ordered from 1 April 2024. source

    More
    • More focus on IT and OT availability of production suppliers.
    • English became the leading language.
    • The data protection catalogue was completely revised.
    • New references to ISO/IEC 27001:2022 and NIST Cybersecurity Framework 1.1.
  2. —
    ISA 2.1 Major version

    The catalogue version TISAX started with in 2016, then heavily based on ISO/IEC 27001. source

Who it applies to

Companies in the automotive supply chain that handle partners' sensitive information, when a partner requires a TISAX label.

Who takes part
Companies use the ISA internally and for assessments of suppliers and service providers that are part of the automotive supply chain. source
What it protects
Design data, production information, customer information, prototypes and intellectual property. source
Why it is required
Some participants made it a mandatory requirement for many of their suppliers to prove that their ISMS meets a defined set of requirements. source
Which label
The partner names the TISAX label it requires, and the supplier selects the matching assessment objective. source
Contracts
A participant usually signs two contracts: the TISAX Participant General Terms and Conditions with ENX Association, and a contract with an audit provider. source
Catalogue in use
ISA 6 is the current version, effective for TISAX assessments ordered from 1 April 2024. Assessments ordered in 2027 use ISA2027; the final date to open an initial assessment under ISA 6 is March 2027. source source
Next catalogue
ISA2027 strengthens supplier and supply chain requirements: for very high protection needs, suppliers must show a TISAX label, an equivalent third-party assessment or a supplier audit. Prototype protection was consolidated from five control groups into two domains, with new requirements on traceability and on disposal or return of protected parts. Mappings were updated to NIST CSF 2.0, ISO/IEC 27001:2022 and ISA/IEC 62443, and references to ISO/IEC 27001:2013 were removed. source

How compliance is assessed

A self-assessment against the ISA, then an assessment by an ENX-approved audit provider. The resulting TISAX labels are valid for up to three years.

Process
Registration of the participant and its assessment scope, choice of an audit provider, the assessment, then exchange of the results with partners. source
Assessment
Starts with a self-assessment based on the ISA, followed by an external audit that ranges from document reviews to on-site inspections depending on protection needs. source
Audit providers
ENX Association approves audit providers and monitors the quality of implementation and the assessment results. source
Assessment levels
Higher assessment levels include lower ones: an assessment at level 3 fulfils all requests for level 2. source
Validity
TISAX labels are valid for at most three years, counted from the closing meeting of the initial assessment. source
Annual ISA releases
The annual catalogue cycle does not change label validity or increase reassessment frequency. source
Result format
Results are shared through the ENX Portal with chosen partners and are not public; ENX issues no wall certificate. source source

Enforcement and penalties

Enforced through business relationships: partners demand labels, and a participant that does not fix non-conformities in time gets none.

Partner demand
Partners set TISAX labels as a requirement for their suppliers and name the label they need. source source
Non-conformities
Non-conformities must be resolved within nine months of the initial assessment's closing meeting; otherwise no TISAX labels are issued, and the participant can start a new initial assessment. source

Documents

  1. Standard VDA ISA2027.1 catalogue, English (Excel)
  2. Guidance ISA 6 to ISA2027 redline (Excel)
  3. Guidance TISAX Participant Handbook
  4. Guidance 10 Years of TISAX – VDA ISA2027 Released (ENX, 1 July 2026)
  5. FAQ TISAX FAQs

Verified against official sources on 18 October 2026. We monitor the official sources for this framework. Watching since 14 September 2026. Subscribe to TISAX (RSS)