Original: In Scotland, the Local Government (Scotland) Act 1973 regionalised local government with a system of two-tier regions and districts in 1975 — this was also replaced by a system of unitary council areas in 1996.
Simplified: In Scotland, the Local Government (Scotland) Act 1973 established a similar system of two-tier regions and districts in 1975 — this was also replaced by a system of unitary council areas in 1996.