The National Highways Sector Schemes (NHSS) are bespoke quality management systems based on the ISO 9001 standard and are for organisations working on the UK road network.
National Highways Sector Schemes (NHSS) are based on ISO 9001 with additional requirements for highways activities. Developed in conjunction with all parts of the highways industry and the United Kingdom Accredited Service, they were designed to provide an industry benchmark and to give assurance to clients that standards were being consistently applied.
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