NAS Certification for
Utilities & Infrastructure Contractors
Independent, evidence-based compliance certification for contractors working in water, energy, gas distribution, telecoms, and civil infrastructure supply chains.
Prove your compliance to regulated utility clients, infrastructure project managers, and public sector procurement teams — with independently reviewed evidence they can check on a public register.
Why It Matters
Infrastructure Clients Demand Rigorous Compliance Evidence
Regulated utility clients — water companies, energy distributors, telecoms network operators — apply stringent compliance standards to their contractor supply chains. Self-declaration alone won't pass scrutiny on major infrastructure programmes.
NAS certification provides independently assessed, publicly verifiable compliance evidence across the CDM, environmental, and health & safety areas that infrastructure procurement demands.
- Independent, evidence-based NAS certification
- Demonstrates compliance to water, energy, and telecoms procurement teams
- Supports PQQ and pre-qualification for infrastructure frameworks
- Health & safety and CDM Regulations independently reviewed
- Environmental Protection Act compliance at Gold tier
- COSHH compliance for chemicals and fuels in infrastructure environments
- Live digital profile shared with infrastructure clients
- Free certificate verification on the NAS public register
Independent compliance evidence that utilities and infrastructure clients can verify.
What Gets Assessed
NAS reviews real evidence across six core compliance areas relevant to utilities and infrastructure contractors.
Health & Safety Policy
A current, signed H&S policy and the arrangements that put it into practice for high-risk infrastructure work.
CDM Regulations
CDM 2015 compliance documentation for civil engineering and major infrastructure projects.
Environmental Protection
Environmental and waste management evidence — critical for contractors working near watercourses, protected areas, and regulated sites (Silver+).
COSHH Compliance
Control of Substances Hazardous to Health procedures for chemicals, fuels, and hazardous substances on infrastructure sites.
Insurance Evidence
Valid Employer's Liability and Public Liability insurance at appropriate levels for infrastructure project work.
Modern Slavery Act
Section 54 Modern Slavery compliance for infrastructure supply chains operating at scale (Bronze where turnover is £36m+; Gold).
Choose the Right NAS Tier
All tiers include H&S assessment. Higher tiers add environmental and regulatory coverage for large infrastructure projects.
Health and safety policy and arrangements, risk assessments and method statements, COSHH, CDM duties, training, insurance and subcontractor checks — the SSIP core criteria.
- Health & safety policy
- Risk assessments & method statements
- Training & insurance
- Public register listing
Everything in Basic plus legal identity and licences, employers’ liability insurance, data protection, equality, complaints handling, employment terms and right-to-work checks.
- Everything in Basic
- Data protection & equality
- Employers’ liability & employment checks
- Public register listing
Everything in Bronze plus environmental and waste management, quality and corrective action, governance and conflicts of interest, competition law, pensions, working time and subcontractor approval.
- Everything in Bronze
- Environmental & waste management
- Quality & governance
- Public register listing
Everything in Silver plus 13 procurement modules: financial standing, anti-bribery and integrity disclosures, tax status, cyber security, ethical supply chain, sustainability and Building Safety Act readiness.
- Everything in Silver
- 13 procurement modules
- Anti-bribery & financial standing
- Building Safety Act readiness
Frequently Asked Questions