The Engineering Profession Ordinance was assented to on April 1st, 1955 by W. G. Brown, Commissioner of the Yukon Territory. With its passage, the Association of Professional Engineers of the Yukon Territory (APEYT) was constituted. At the end of 1956, APEYT had 15 members:
|John Livingstone Phelps||Edward Owen Greening||Herbert Wainwright Love|
|Malcom Corsan Sutherland-Brown||Thomas Henry Newton||John Delbert Scott|
|Kenneth James Baker||John L. Darimont||John Louden Motherwell|
|Arthur Barry Yates||Cyprian Douglas Neufville Taylor||MacLeod White|
|Michael Garrod Elston||Clarence Edward White||Robert Greer Armstrong|
In 1995, the Ordinance was replaced with the Engineering Profession Act and the association became the Association of Profession Engineers of Yukon (APEY).
In 2011, APEY Council created a Task Force to research and document the history of engineering in Yukon and to identify engineers that are prominent in this history.