Briefing by the European Parliamentary Research Service: “This briefing recognises the role of cross-border and cross-sector use of electronic identification (eID) and trust services in advancing the digitisation of public services in Europe as well as the potential impact of the implementation of the ‘once-only’ principle in public administrations. The eGovernment Action Plan 2016-2020 includes several concrete actions to help boost the Digital Single Market, underpinned by the ‘digital-by-default, ‘once-only’ and ‘cross-border by default’ principles. The publication comes at a relevant time, when Member States are preparing for a ministerial meeting and to sign a Ministerial Declaration (on eGovernment) early next month….The role of eGovernment in deepening the single market briefing is available and accesible through the link….(More)”.