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What is the National Highways Sector Scheme? (NHSS)

The Highways Agency has developed a National Highways Agency Sector Schemes (NHSS) to apply the Quality Management Standard ISO 9001 to the various activities associated with the highways industry. 

The Sector Schemes requires that companies have stringent controls in place to ensure that the work is carried out safely and in accordance with client requirements.

This is because they recognise that working alongside the highways can be a hazardous working environment.

How we can help

Penarth has assisted many companies implement quality systems that meet the requirements of the national highways sector scheme. Get in contact to find out how we can help!

See how Mango can help with quality management

Other quality standards:

The NHSS is designed to:

  • Provide an industry benchmark

  • Ensure that all processes are planned

  • Provide a basis for continuous improvement

  • Focus on quality as an objective

  • Reduce overall costs for the client and supplier

  • Provide and  maintain a properly trained and competent workforce

  • Involve all sides of the industry in scheme ownership within a partnership framework

  • Ensure that Certification Bodies use auditors with technical knowledge and experience of the sector concerned

  • Promote confidence in quality management systems by provision of a robust, transparent system

Penarth has assisted with:

Scheme 2A: The design, supply, installation and repair of fences for infrastructure works 

Scheme 4: Preservative treatment of timber 

Scheme 7: The application of road marking materials & road studs to paved surfaces

Scheme 12A / 12B: Static temporary traffic management on motorways and high speed dual carriageways (including on-line widening schemes)

Scheme 12C: Mobile lane closure traffic management on motorways and other dual carriageways

Scheme 12D: Installing, maintaining and removing temporary traffic management on rural and urban roads

Scheme 16: Sector scheme for the laying of asphalt mixes

Scheme 16: Particular requirements for the application of iso 9001:2015 for  quality management of the laying of asphalt mixe​s

Scheme 18: The natural environment and landscape including ecology for infrastructure


"We have found it extremely beneficial to have an accredited Quality Management System, which includes the requirements of National Highways Sector Schemes 12A/B. Sector Scheme accreditation has helped open up additional possibilities for work."

- Conemasters Limited

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