NAS Certification for Contractors. Live Compliance Control for Buyers.
NRTAUK NAS is an evidence-based UK business certification scheme for contractors, trades and SMEs. Contractors prove their compliance, manage key documents and share live supplier data with buyers. Procurement teams get a clearer view of certification status, insurance, workforce records, RAMS, CIS information and contractor risk — without chasing endless emails.
Independent assessment. Evidence-based certification. ISO/IEC 17021 aligned. Working towards UKAS accreditation.
Apply for NAS Certification →
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Stop Paying for a Badge. Start Building Proof.
For Contractors
Get NAS certified, build credibility, manage compliance documents, create RAMS, track workforce records and win more work. Show buyers live compliance evidence, reduce repeated document requests, and make procurement conversations easier.
For Buyers & Procurement
Stop chasing supplier paperwork. NRTAUK gives procurement, HSEQ and supply chain teams a live view of contractor compliance, certification status, insurance, workforce training, policies, RAMS, CIS records and financial health indicators.
Request free buyer access →
NAS Certification Tiers
NAS Basic — £349/year
Entry-level H&S certification for sole traders and small businesses. Covers Health & Safety Policy, RAMS assessment, digital NAS certificate and public register listing.
Apply for Basic
NAS Bronze — £749/year
Full compliance certification for SMEs & contractors covering core legislation and operational compliance. Includes Data Protection, GDPR, Equality & Diversity, and insurance verification.
Apply for Bronze
NAS Silver — £950/year
Enhanced compliance for growing SMEs with governance, environmental policy, risk management evidence and operational maturity. Priority processing included.
Apply for Silver
NAS Gold — £1,150/year
Procurement-ready certification covering 22 compliance areas including Building Safety Act, corporate governance, PQQ response generator and shareable buyer profile.
Apply for Gold
Built Around Impartial Assessment
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Evidence-based assessment — no self-declaration
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Independent assessor review
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Certification decision separation
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Full audit trail
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Complaints and appeals process
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Public certificate verification
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Public register of certified businesses
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Aligned with ISO/IEC 17021 principles and working towards UKAS accreditation
Who Is NAS Certification For?
NAS certification is for UK
contractors, subcontractors, tradespeople, and SMEs
who want to demonstrate live compliance, win more contracts, and get onto approved supplier lists.
Recognised by housing associations, main contractors, local councils, NHS trusts, MOD suppliers, and procurement teams across the UK.
How NAS Certification Works
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Submit your online NAS application at nrta.uk
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Upload your compliance evidence to the secure NRTAUK portal
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An independent assessor reviews your evidence against the NAS standard
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Receive a decision — approval, corrections required, or NCR raised
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Certificate issued and your business listed on the NAS Certified Business Register
Full guide to how NAS certification works →
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