Require NAS-Certified Contractors
In Your Social Housing Supply Chain.
Housing associations and registered providers carry legal and reputational responsibility for who they allow on their estates. NAS certification gives you independently assessed, publicly verifiable proof that your contractors meet structured UK compliance standards — not just self-declarations.
Why Require NAS From Your Contractors?
Social housing procurement teams are legally exposed when contractors don't comply. Modern Slavery, GDPR, Equality, and H&S obligations don't disappear when you outsource — they extend to your supply chain. Here's why NAS matters.
The Risk Without It
Why Requiring NAS Protects You
How NAS Works For You
Independent, evidence-based contractor certification you can rely on.
Instant Register Search
Verify any contractor on the free NAS public register in seconds. No login, no cost — just search by name or certificate number.
Independent Assessment
Every NAS certificate is backed by documented evidence reviewed by an independent assessor — not just a questionnaire.
Modern Slavery Checks
Bronze checks a Modern Slavery Act statement where turnover is £36m or more; Gold reviews modern slavery risk policy and supply chain labour standards.
13 Procurement Modules at Gold
NAS Gold adds the 13 procurement modules, including anti-bribery, financial standing, tax status, environmental management and Building Safety Act readiness, on top of the data protection and equality checks from Bronze.
Certificates Stay Current
NAS certificates are renewed annually. The public register always reflects current certification status — expired certificates are flagged immediately.
Procurement Due Diligence
Using NAS-certified contractors gives your procurement function documented, auditable evidence of supply chain due diligence.
Frequently Asked Questions
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