Greater London Authority (Referendum) Act 1998
3 ) is an Act of the Parliament of the United Kingdom , which made legal provision for the holding of a non-binding referendum in Greater London on whether there should be a democratically elected Assembly for London and a separately elected Mayor for London . 
<triplet> Greater London <subj> Assembly for London <obj> legislative body <triplet> Assembly for London <subj> Greater London <obj> applies to jurisdiction