[citation needed] Part of this may have been because OS was operating outside of their acknowledged expertise in mapping rather than data management, although it has been suggested [who?]
This was part of a long drawn out process of procurement for mapping data and included management of the NSG and the NLPG.
[4] Maintenance of the NSG is covered by the National Streetworks Register legislation and is a statutory requirement of local authorities.
[citation needed] On a monthly basis,[3] highway authorities are required to upload their street gazetteers, along with Associated Street Data (ASD), to the NSG; a master index built to the national standard BS 7666, for access by a number of other organisations via the NSG online hub and managed by GeoPlace.
This enables third-party organisations such as public utilities to meet their statutory requirements to provide the appropriate streetworks notifications.