ComparisonGLOBALETSI EN 303 645

ETSI EN 303 645 vs UK PSTI

A practical crosswalk for teams that already have ETSI EN 303 645 consumer IoT evidence and need to decide what can, and cannot, be reused for a UK PSTI review.

The ETSI side is sourced to ETSI EN 303 645 and ETSI TS 103 701. UK PSTI conclusions still need a separate PSTI source check before release, procurement, or legal reliance.

Author
Sorena AI
Published
May 9, 2026
Updated
May 9, 2026
Sections
4

Structured answer sets in this page tree.

Primary sources
3

Cited legal and guidance references.

Publication metadata
Sorena AI
Published May 9, 2026
Updated May 9, 2026
Overview

Use this page to prevent a common comparison mistake: treating an ETSI EN 303 645 assessment pack as if it automatically satisfies a UK PSTI obligation. ETSI EN 303 645 defines baseline cybersecurity and data-protection provisions for consumer IoT devices, while ETSI TS 103 701 explains how a Device Under Test, Supplier Organization, and Test Laboratory can structure conformance assessment evidence. This page shows which ETSI artifacts are useful inputs to a UK PSTI review and where the PSTI side must be checked separately.

Side-by-side comparison

ETSI EN 303 645 vs UK PSTI: what can be reused?

Compare ETSI EN 303 645 evidence against UK PSTI review needs without assuming that an ETSI assessment proves UK legal scope, duties, timing, or enforcement exposure.

Review all sources
First framework
ETSI EN 303 645

Use this side for source-linked consumer IoT baseline provisions, implementation conformance statements, IXIT evidence, and TS 103 701 assessment records.

Second framework
UK PSTI

Use this side as a PSTI validation column. The available ETSI source set does not support detailed UK PSTI legal claims, so each PSTI conclusion needs a separate source before reliance.

Comparison row 1

Scope and covered activity

ETSI EN 303 645

ETSI EN 303 645 covers consumer IoT devices connected to network infrastructure and their interactions with associated services; devices primarily intended for manufacturing, healthcare, or other industrial applications are outside the ETSI scope described here.

UK PSTI

Do not infer UK PSTI scope from the ETSI consumer IoT boundary. Confirm the PSTI product scope and any excluded products from a PSTI-specific source before reusing the ETSI scope memo.

Operational implication

An ETSI scope record is a useful starting artifact, but the crosswalk should keep a separate PSTI scope decision with its own source citation.

Comparison row 2

Who must act

ETSI EN 303 645

ETSI TS 103 701 separates the Supplier Organization, which can be the developer, manufacturer, vendor, or distributor of the DUT, from the Test Laboratory that carries out conformance assessment.

UK PSTI

Do not reuse the ETSI Supplier Organization or Test Laboratory labels as UK PSTI duty-holder labels. Confirm any PSTI role allocation from PSTI-specific material.

Operational implication

The ETSI assessment contacts can help route evidence requests, but the UK accountability row should remain open until PSTI role duties are sourced.

Comparison row 3

Trigger or threshold

ETSI EN 303 645

ETSI work starts with a consumer IoT product boundary and the provisions claimed for that product. Conditional and feature-based provisions depend on the device, mechanisms, and capabilities described in the ICS and IXIT.

UK PSTI

Do not infer the UK PSTI trigger from an ETSI ICS status. Confirm the PSTI trigger, product status, and supply context from PSTI-specific source material.

Operational implication

A release gate should show two trigger facts: the ETSI provision/assessment trigger and the separately sourced UK PSTI trigger.

Comparison row 4

Core obligations

ETSI EN 303 645

ETSI EN 303 645 includes baseline consumer IoT provisions for passwords, vulnerability reporting, software updates, secure storage, secure communication, attack-surface minimization, software integrity, personal-data security, resilience, telemetry, user-data deletion, installation, maintenance, and input validation.

UK PSTI

Do not say that the UK PSTI obligations are identical to the ETSI baseline unless a PSTI source supports the exact mapping. Treat each PSTI requirement as unmapped until sourced.

Operational implication

Build a requirement-by-requirement crosswalk. Some ETSI controls may be reusable technical evidence, but unsupported PSTI rows should stay marked as source gaps.

Comparison row 5

Evidence and records

ETSI EN 303 645

ETSI evidence should include product identification, an ICS, IXIT information, public vulnerability-disclosure and support-period information where relevant, conceptual and functional test records, external evidence references, and verdicts.

UK PSTI

UK PSTI evidence should not be declared complete from ETSI records alone. Add a PSTI source, then mark which ETSI artifacts support the UK review and which questions need new records.

Operational implication

Keep one matrix with columns for source, claim, artifact, product version, owner, ETSI status, PSTI status, and open source gap.

Comparison row 6

Timing and cadence

ETSI EN 303 645

ETSI EN 303 645 uses timing concepts such as acknowledgement and status-update timelines in the vulnerability disclosure policy, timely action on vulnerabilities, timely security updates, periodic checks for updates, and a published defined support period.

UK PSTI

Do not import those ETSI timing concepts as UK PSTI deadlines. Confirm any PSTI commencement, statement, supply, update, reporting, or enforcement clocks from PSTI-specific sources.

Operational implication

Separate operational security timing from legal timing. ETSI can support update and vulnerability-management evidence, but the UK PSTI schedule needs its own source.

Comparison row 7

Enforcement or assurance route

ETSI EN 303 645

ETSI TS 103 701 describes a conformance assessment methodology with test groups, conceptual and functional tests, external evidence, and PASS/FAIL verdicts. It also states that the document is independent from an assurance scheme.

UK PSTI

Do not present an ETSI PASS verdict or assessment pack as proof of UK PSTI enforcement compliance unless a PSTI source or scheme explicitly accepts that evidence for the specific claim.

Operational implication

Use ETSI assessment results as technical assurance evidence. Keep UK PSTI enforcement, regulator, penalty, and market-access conclusions out of scope until sourced.

Comparison row 8

Overlap and reuse

ETSI EN 303 645

Reusable ETSI artifacts are strongest when they are product-versioned and traceable: ICS status, IXIT fields, password-generation evidence, vulnerability policy, update mechanism, support-period publication, user-data deletion checks, telemetry review, and interface inventory.

UK PSTI

Reuse those artifacts for UK PSTI only after confirming the PSTI requirement, product scope, and role match. If the source gap remains, label the artifact as technical background rather than PSTI evidence.

Operational implication

Reuse reduces duplicate work only when the source-linked claim is the same. Otherwise, keep a bridge note explaining what the ETSI evidence does and does not prove.

Comparison row 9

Practical decision rule

ETSI EN 303 645

Use ETSI EN 303 645 as the controlling source when the question is whether a consumer IoT product has mapped, implemented, justified, or assessed ETSI baseline provisions.

UK PSTI

Use a PSTI-specific source as the controlling source when the question is UK legal scope, duty holder, statement wording, supply trigger, enforcement, or penalty.

Operational implication

The crosswalk is ready for release only when every row is labelled ETSI evidence, PSTI evidence, shared evidence, or source gap.

Practical decision rule

How should teams decide whether to prioritize ETSI EN 303 645 or UK PSTI compliance work?

  • Prioritize UK PSTI for market-access compliance in Great Britain: the regime is mandatory, and its security requirements were built from ETSI EN 303 645 provisions 5.1-1, 5.1-2, 5.2-1, and 5.3-13, so evidence reuse is possible but not one-to-one.
  • Use ETSI EN 303 645 as a broader security baseline for products sold in the EU, UK, and other markets simultaneously, and keep TS 103 701 conformance evidence to support any EN 303 645 claims.
  • Keep separate compliance records for each regime because the statement of compliance and authorized signatory requirements differ between UK PSTI and a voluntary EN 303 645 assessment.
  • Escalate when products use password-reset or credential-management flows, universal default passwords, or software update suppression, as these are PSTI-critical areas with direct EN 303 645 equivalents.
Section 1

What this comparison can support

ETSI EN 303 645 is useful because it is specific about consumer IoT baseline topics: default passwords, vulnerability reporting, software updates, secure storage, secure communications, attack-surface reduction, software integrity, personal-data security, resilience, telemetry review, user-data deletion, installation, maintenance, and input validation.

ETSI TS 103 701 adds an assessment structure. It identifies the Device Under Test, Supplier Organization, Test Laboratory, Implementation Conformance Statement, Implementation eXtra Information for Testing, test groups, verdicts, and use of external evidence.

Those artifacts can shorten a UK PSTI review, but they do not by themselves prove UK legal scope, duties, enforcement exposure, or statement wording. Treat the PSTI side as an open legal-source check unless a separate PSTI source is attached to the work.

  • Use the ETSI column to identify reusable product-security controls and evidence records.
  • Use the UK PSTI column to record questions that must be answered from PSTI-specific sources before relying on the crosswalk.
  • Do not turn ETSI recommendations, conditions, or assessment verdicts into UK legal claims unless the PSTI source supports that translation.
Section 2

ETSI evidence that is worth mapping first

Start with evidence that describes the shipped product and can be read without tribal knowledge: product model, consumer IoT scope, associated services, authentication mechanisms, software components, update mechanisms, vulnerability disclosure policy, support period, telemetry data, deletion functionality, user instructions, and exposed interfaces.

For assessment work, keep the ICS and IXIT records close to the product version. ETSI TS 103 701 uses those records to plan tests and check whether claimed provisions, non-applicability positions, and implementation details are coherent.

  • Scope record: consumer IoT device, associated services, software version, product model, and excluded industrial or non-consumer uses.
  • Security-control record: passwords, vulnerability intake, update mechanism, secure communication, attack-surface controls, software integrity, and input validation.
  • User-facing record: update-support period, security setup guidance, vulnerability reporting channel, data-deletion instructions, and security-relevant notices.
  • Assessment record: ICS claim, IXIT evidence, conceptual test result, functional test result, external evidence reference, and final verdict.
Section 3

Where UK PSTI needs separate confirmation

The available ETSI source set does not provide enough PSTI text to state UK statutory scope, role duties, commencement rules, enforcement powers, statement-of-compliance content, or penalties. This page therefore treats UK PSTI as a comparator that needs separate source validation.

That gap is important. A product team can still reuse ETSI evidence as an input, but the release decision should show which PSTI questions were separately confirmed and which ETSI artifacts merely support technical security claims.

  • Confirm whether the product is in UK PSTI scope from a PSTI source, not from the ETSI assessment file.
  • Confirm the responsible UK roles and any statement or supply-chain duties from PSTI-specific material.
  • Confirm whether an ETSI control maps to a PSTI requirement before using the same evidence in customer or regulator-facing language.
  • Mark every unmapped PSTI question as an open issue rather than filling it with a generic compliance owner or checklist row.
Section 4

Crosswalk review checklist

Use this checklist when moving from ETSI evidence to a UK PSTI review. Each item should produce a record that says whether the artifact is reusable, needs adaptation, or is not supported by the available source set.

  • Name the product version, model designation, software version, associated services, and support-period statement used for the ETSI evidence pack.
  • List the ETSI provisions claimed as fulfilled, not fulfilled, or not applicable, including the justification for each recommendation treated as not applicable or not fulfilled.
  • Attach the ICS and IXIT entries used for passwords, vulnerability disclosure, updates, interfaces, telemetry, deletion, user decisions, and input validation.
  • Record whether each ETSI artifact is technical evidence only, legal-scope evidence, customer-facing evidence, or not reusable for UK PSTI without a separate source.
  • Escalate rows where the UK PSTI source is missing, the role is unclear, the product scope differs, or the public statement would imply a legal conclusion not supported by this evidence.
Primary sources

References and citations

Related guides

Explore more topics

ETSI EN 303 645 Applicability and Scope
Decide whether a connected product is in scope of ETSI EN 303 645, define the consumer IoT evidence boundary, and document N/A justifications for assessment.
ETSI EN 303 645 compliance: ICS, IXIT, evidence
Plan ETSI EN 303 645 compliance evidence for consumer IoT products with scope, ICS, IXIT, TS 103 701 assessment steps, verdict risks, and source-linked controls.
ETSI EN 303 645 consumer IoT products: what is in scope?
ETSI EN 303 645 FAQ on consumer IoT product scope: devices, associated services, constrained devices, out-of-scope industrial uses, ICS, IXIT, and TS 103 701 evidence.
ETSI EN 303 645 Current Version Tracker
Track ETSI EN 303 645 version evidence, ETSI deliverable status checks, TS 103 701 assessment alignment, and change triggers for consumer IoT security work.
ETSI EN 303 645 CVD Workflow for IoT Vulnerability Reports
Source-linked workflow for ETSI EN 303 645 vulnerability disclosure: public policy contents, reporting contact, acknowledgement and status timelines, timely action, and TS 103 701 evidence.
ETSI EN 303 645 Data Protection Provisions
source-linked guide to ETSI EN 303 645 data protection provisions for consumer IoT: personal data security, telemetry transparency, consent, and deletion evidence.
ETSI EN 303 645 default passwords: what must consumer IoT teams do?
ETSI EN 303 645 default password guidance for consumer IoT: unique or user-defined passwords, pre-installed password generation, change mechanisms, brute-force controls, and TS 103 701 evidence.
ETSI EN 303 645 FAQ: Consumer IoT Security Questions
source-linked answers to common ETSI EN 303 645 questions on consumer IoT scope, associated services, default passwords, updates, vulnerability disclosure, telemetry, deletion, and TS 103 701 evidence.
ETSI EN 303 645 ICS and IXIT Evidence Template
Build a source-linked ICS and IXIT evidence template for ETSI EN 303 645 consumer IoT assessments, with clear separation between EN provisions and TS 103 701 test information.
ETSI EN 303 645 implementation checklist
Use this ETSI EN 303 645 implementation checklist to scope a consumer IoT product, record Annex B support statuses, map IXIT evidence, and avoid weak conformance claims.
ETSI EN 303 645 Implementation Evidence Guide
Build ETSI EN 303 645 implementation evidence from Annex B support/detail records, TS 103 701 ICS and IXIT inputs, test verdicts, and scoped external evidence.
ETSI EN 303 645 IoT Applicability Workflow
Decide whether ETSI EN 303 645 applies to a consumer IoT product, what associated services belong in scope, and how to record justified non-applicability.
ETSI EN 303 645 personal data deletion FAQ for consumer IoT
What ETSI EN 303 645 says about deleting user data and personal data from consumer IoT devices, associated services, apps, and evidence records.
ETSI EN 303 645 requirements: consumer IoT provision map
Map ETSI EN 303 645 consumer IoT requirements to product scope, Annex B ICS entries, TS 103 701 evidence, and implementation owners.
ETSI EN 303 645 Secure Update Evidence Workflow
Build secure-update evidence for ETSI EN 303 645 using provision 5.3, Annex B support/detail records, and TS 103 701 ICS, IXIT, and test-plan inputs.
ETSI EN 303 645 Secure Update Workflow
Map ETSI EN 303 645 secure-update provisions into a practical workflow for consumer IoT update mechanisms, support-period disclosures, and TS 103 701 evidence.
ETSI EN 303 645 Secure Updates and Vulnerability Disclosure
source-linked guide to ETSI EN 303 645 clauses 5.2 and 5.3 for consumer IoT vulnerability disclosure, security updates, support periods, and TS 103 701 evidence.
ETSI EN 303 645 support period: what must consumer IoT teams publish?
ETSI EN 303 645 support-period guidance for consumer IoT: defined security-update support periods, user-accessible publication, constrained-device replacement support, model designation, and TS 103 701 evidence.
ETSI EN 303 645 telemetry: what should consumer IoT teams evidence?
ETSI EN 303 645 telemetry guidance for consumer IoT teams: security anomaly examination, IXIT 24-TelData evidence, personal-data minimization, and consumer telemetry disclosures.
ETSI EN 303 645 test evidence: what should consumer IoT teams keep?
ETSI EN 303 645 test evidence guidance for consumer IoT teams: ICS support claims, IXIT detail, TS 103 701 test plans, verdicts, and external evidence checks.
ETSI EN 303 645 vs EU CRA for Consumer IoT
Use ETSI EN 303 645 and ETSI TS 103 701 evidence when preparing consumer IoT cybersecurity work that may also need a separate EU CRA legal mapping.
ETSI EN 303 645 vs RED Cybersecurity Delegated Act
Compare ETSI EN 303 645 consumer IoT security evidence with RED cybersecurity planning without treating the ETSI baseline as a substitute for RED legal scope.
ETSI EN 303 645 vulnerability disclosure requirements for consumer IoT
What ETSI EN 303 645 requires for consumer IoT vulnerability disclosure policies, report handling, status updates, timely action, and TS 103 701 evidence.
ETSI TS 103 701 Test Evidence Workflow for EN 303 645
Build an ETSI TS 103 701 test evidence workflow for EN 303 645 consumer IoT assessments: DUT identification, ICS, IXIT, test plans, verdicts, and external evidence.
How should teams handle constrained devices under ETSI EN 303 645 for consumer IoT products?
ETSI EN 303 645 constrained-device guidance: what counts as constrained, when non-applicability can be justified, and what evidence should support update and authentication decisions.