Description: Boundary-Line is a specialist 1:10 000 scale boundaries dataset. It contains all levels of electoral and administrative boundaries, from district, wards and civil parishes (or communities) up to parliamentary, assembly and European constituencies. The information is represented as vector digital data. The boundary information is updated twice a year, in May and October. The May release contains the boundaries that have become live in the first week of May, in the year of release. The October release contains the May boundaries plus additional information.