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Digital Technology Assessment Criteria (DTAC)

Helping health technology suppliers meet NHS digital health standards and unlock access to NHS patients.

The Digital Technology Assessment Criteria (DTAC) is the NHS’s standard for evaluating whether digital health technologies (DHTs) meet core requirements for clinical safety, data protection, technical assurance, interoperability, and usability.

Region: United Kingdom

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What is the Digital Technology Assessment Criteria (DTAC)?

The Digital Technology Assessment Criteria (DTAC) is the NHS’s standard for evaluating whether digital health technologies (DHTs) meet core requirements for clinical safety, data protection, technical assurance, interoperability, and usability.

It provides a clear benchmark for what “good” looks like, ensuring that the digital tools used across the NHS are safe, secure, and effective.

ORCHA supports suppliers and systems in understanding, completing, and maintaining DTAC compliance, using our globally recognised assessment methodology and review expertise.

Why DTAC matters

For suppliers, DTAC is the gateway to NHS access. When a solution meets DTAC requirements, they can be positioned within ORCHA's Access solutions that reach thousands of NHS professionals and patients.

For commissioners and health systems, it offers assurance that products meet baseline digital health standards.

By meeting DTAC, suppliers demonstrate compliance with mandatory legal, regulatory, and best-practice requirements - enabling NHS organisations to procure with confidence.

Core purpose:

To simplify assurance, strengthen trust, and accelerate the safe adoption of digital health solutions across the NHS

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ORCHA and DTAC: Simplifying the path to NHS compliance

ORCHA has helped hundreds of digital health suppliers navigate DTAC — turning what can be a complex, self-assessed process into a clear, supported pathway.

Our assessment team uses the ORCHA Global Baseline Review (OBR) as a foundation, mapping it directly to DTAC requirements.
This enables us to:

  • Identify gaps between your product and DTAC standards

  • Provide clear, actionable feedback and a “success plan.”

  • Support submission readiness for NHS organisations

  • Maintain ongoing compliance through continuous monitoring

The result?

Faster, clearer, and more confident DTAC completion, backed by independent ORCHA validation.

Why work with ORCHA for your DTAC assessment:

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Expertise in NHS standards

We’ve conducted 38,000+ digital health assessments globally, including thousands aligned to DTAC and NHS frameworks.
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Integrated approach

DTAC reviews are completed as part of a wider ORCHA Assured process, giving you one pathway to both NHS and international recognition.

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Foundation for NHS access

A validated DTAC submission accelerates NHS procurement, enabling faster onboarding through platforms such as ORCHA Compare.

Download our DTAC product specifications

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ORCHA Assured: The benchmark of trust

Our frameworks underpin ORCHA Assured, a tiered certification that verifies digital health technologies against essential standards.

  • Bronze – confirms baseline compliance across privacy, safety, and usability.

  • Silver – adds deeper evidence and advanced usability checks.

Each ORCHA Assured product carries the ORCHA Guarantee - our commitment to independent, defensible assessment that reduces procurement risk and builds trust.

Frequently Asked Questions

What is the Digital Technology Assessment Criteria (DTAC)?

The Digital Technology Assessment Criteria (DTAC) is the NHS standard that ensures digital health technologies meet essential requirements for safety, security, and quality. It covers five key areas - clinical safety, data protection, technical assurance, interoperability, and usability/accessibility - and provides a consistent benchmark for products entering NHS use.

Who needs to complete DTAC?

Any supplier or developer wishing to make their digital health product available to NHS organisations should be DTAC-compliant.
This includes apps, web platforms, remote monitoring tools, and digital therapeutics that process health or patient data.

Is DTAC mandatory?

Yes, DTAC compliance is required for all digital health technologies procured or commissioned by NHS organisations.
It provides a single standard across the system, ensuring every product meets minimum legal, clinical, and technical expectations.

What is ORCHA's role in DTAC?

ORCHA helps suppliers and health systems understand, complete, and maintain DTAC compliance.
We provide independent, structured assessments that:

  • Map your product against DTAC requirements.

  • Identify and help close any compliance gaps.

  • Validate alignment to NHS standards.

  • Offer continuous monitoring to keep compliance up to date.

Note: ORCHA is not a regulator or notified body. We act as an independent assessor supporting both suppliers and NHS organisations in meeting and verifying DTAC standards.

What’s the difference between DTAC and ORCHA Assured?

DTAC is the NHS framework — a self-assessment supported by evidence, focused on compliance for NHS procurement.

ORCHA Assured is a certification scheme that validates digital health technologies against broader national and international standards.

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