Principal Private Secretary to the Prime Minister appointed by Theresa May on 10 May 2017. During Tony Blair's administration, he modified the law under which the Civil Service operated to create the role of Downing Street Chief of Staff, which though held by a political advisor outranked the Principal Private Secretary. When Gordon Brown ascended to office, he reversed the change to the Civil Service law. When David Cameron became Prime Minister, he promoted the then-PPS to a new post of "Permanent Secretary, Downing Street", a position which took over heading the Prime Minister's Office. In 2012, the postholder, Jeremy Heywood, was appointed as Cabinet Secretary, this
Minister for the purposes of the Atlantic Canada Opportunities Agency Act serves as the Minister of Innovation, Science and Economic Development, whose portfolio includes the six Canadian regional development agencies (including ACOA). Key: Minister for the purposes of the Atlantic Canada Opportunities Agency Act The Minister for the purposes of the Atlantic Canada Opportunities Agency Act, more commonly the Minister for the Atlantic Canada Opportunities Agency or Minister of the Atlantic Canada Opportunities Agency (), is the member of the Cabinet of Canada who also serves as the chief executive of the Atlantic Canada Opportunities Agency (ACOA). The post is traditionally held by an MP from Atlantic Canada, although occasionally the