Complex sentence: The basic planning law of Northern Ireland is contained in the Planning (Northern Ireland) Order 1991, while the relevant Acts for Scotland are the Town and Country Planning (Scotland) Act 1997 and the Planning etc (Scotland) Act 2006.
Split into simpler sentences: The basic planning law of Northern Ireland is contained in the Planning (Northern Ireland) Order 1991. The relevant Acts for Scotland are the Town and Country Planning (Scotland) Act 1997 and the Planning etc (Scotland) Act 2006.