Glossary of Terms ARO Acting Returning Officer BID Business Improvement District BPA Ballot Paper Account CARO Combined Area Returning Officer CNL Corresponding Number List CCO Chief Counting Officer CGR Community Governance Review CO Counting Officer CRO Constituency Returning Officer DRO Deputy Returning Officer DWP Department for Work and Pensions EA Electoral Administrator EAA Electoral Administration Act 2006 EC Electoral Commission EMB Electoral Management Board EMS Electoral Management System EONI Electoral Office of Northern Ireland ESM Electoral Services Manager ERO Electoral Registration Officer ERA Electoral Registration and Administration Act 2013 FPtP First Past the Post FTPA Fixed-Term Parliaments Act 2011 GLA Greater London Authority GLRO Greater London Returning Officer HEF Household Enquiry Form IER Individual Electoral Registration IER DS Individual Electoral Registration Digital Service ITR Invitation to Register LGA Local Government Act 1972 LGPIHA Local Government and Public Involvement in Health Act 2007 LRO Local Returning Officer NAW National Assembly for Wales NICs National Insurance Contributions NINO National Insurance Number NPRs Neighbourhood Planning Referendum PAR Local Elections (Principal Areas) (England and Wales) Rules 2006 PARO Police Area Returning Officer PCC Police and Crime Commissioner PCCEO Police and Crime Commissioner Elections Order 2012 PCR Local Elections (Parishes and Communities) (England and Wales) Rules 2006 PER Parliamentary Election Rules (Schedule 1 of RPA 1983) PRSRA Police Reform and Social Responsibility Act 2011 PPERA Political Parties, Elections and Referendums Act 2000 PVS Postal Voting Statement RO Returning Officer RRO Regional Returning Officer RPA Representation of the People Act 1983 RPR Representation of the People Regulations 2001 SAA Scottish Assessors Association SP Scottish Parliament SV Supplementary Vote TVD Tactile Voting Device UKPGE UK Parliamentary General Election .