National Highway Sector Schemes (NHSS) are bespoke integrated management schemes within an ISO 9001:(current) framework. They have been developed in partnership with all sides of the highways industry to interpret the international quality management standard as it applies to a particular activity or industry within the United Kingdom.
Each Sector Scheme is managed by a technical advisory committee. The committees interpret the BS EN ISO 9001:(current) in relation to the requirements of their particular activity and reach a consensus on the minimum levels of workmanship, services, products, testing and the training and competency of operatives needed to meet specification requirements. The details are contained in the individual sector scheme documents.
If your company supplies services to Highways England under the Specification for Highways Works (SHW), you must be certified under all the relevant schemes for the work you are carrying out. For the benefits of NHSS certification and further information please visit https://www.gov.uk/guidance/national-highway-sector-schemes-certification-for-contractors-and-subcontractors