mayoral electionmeans an election conducted under the Local Authorities (Mayoral Elections) (England and Wales) Regulations 2002;
referendummeans a referendum conducted under the Local Authorities (Conduct of Referendums) (England) Regulations 2001;
relevant election or referendummeans one or more of the following— (a) a Parliamentary election;
the Combination of Polls Regulationsmeans the Representation of the People (Combination of Polls) (England and Wales) Regulations 2004;