The following National Highway Sector Schemes (NHSS) documents have been updated during November 2018;
- Scheme 8 Particular Requirements for the Application of ISO 9001:2015 for The Overseeing and / or Installation and / or Maintenance of Highway Electrical equipment and supporting works (Edition 2, November 2018)
- Scheme 12A/B Particular Requirements for the Application of ISO 9001:2015 for Static Temporary Traffic Management on Motorways and High Speed Dual Carriageways Including On-line Widening Schemes (Edition 3, December 2018)
The following National Highway Sector Schemes (NHSS) documents have been withdrawn during November 2018;
- Scheme 5B [9001:2008] Sector Scheme Document for the Supply, Installation, Maintenance and Repair of Bridge Parapets (Edition 6, July 2016)
- Scheme 6 [9001:2008] Sector Scheme Document for Minor Structures (Edition 8, October 2014)
- Scheme 7 [9001:2008] Sector Scheme Document for The Application of Road Marking Materials and Road Studs to Road Surfaces (Edition 8, March 2017)
- Scheme 8 [9001:2008] Sector Scheme Document for The Overseeing and / or Installation and / or Maintenance of Highway Electrical Equipment and Supporting Works (Edition 21, December 2016)
- Scheme 9A [9001:2008] Sector Scheme Document for The Design, and/or Manufacture and/or Assembly and/or Provision of Permanent Road Traffic Signs (Edition 7, May 2015)
- Scheme 12A / 12B [9001:2008] Sector Scheme Document for Static Temporary Traffic Management on Motorways and High Speed Dual Carriageways Including On-line Widening Schemes (Edition 7, December 2016)
- Scheme 12C [9001:2008] Sector Scheme Document for Mobile Lane Closure Traffic Management on Motorways and Other Dual Carriageways (Edition 12, October 2016)
- Scheme 12D [9001:2008] Sector Scheme Document for Installing, Maintaining and Removing Temporary Traffic Management on Rural and Urban Roads (Edition 10, November 2016)
- Scheme 13 [9001:2008] Sector Scheme Document for the Supply and Application of Surface Treatments to Road Surfaces (Edition 6, January 2018)
- Scheme 16 [9001:2008] Sector Scheme Document for the Laying of Asphalt Mixes (Edition 6, January 2014)
- Scheme 17 & 17B [9001:2008] Sector Scheme Document for Vehicle Recovery at Highway Construction Sites (17) and Vehicle Recovery and Removal on Control Roads (17B) NB: Replaces NHSS 17 and NHSS 17B (Edition 4, September 2016)
- Scheme 20 [9001:2008] Sector Scheme Document for the Execution of Steelwork in Transportation Infrastructure Assets (Edition 8, December 2016)
- Scheme 22 [9001:2008] Sector Scheme Document for the Management, Operation, Installation and Maintenance of Road Tunnels (Edition 2, October 2010)
The following National Highway Sector Schemes (NHSS) documents have been updated during March 2018;
- Scheme 12D Particular Requirements for the Application of ISO 9001:2015 for installing, maintaining and removing temporary traffic management on rural and urban roads (Issue 3, April 2018)
- Scheme 29A Particular Requirements for the Application of ISO 9001:2015 for Land Drilling – Geothermal Drilling (Issue 1, March 2018)