Derry's grammar schools will all use academic selection in 2010
All Londonderry's grammar schools are to set entrance tests in 2010, it has been confirmed.
The Board of Governors at St Columb's College said that "in the current circumstances, it would be prudent to use testing" to select pupils.
The school said it will conduct tests in Maths and English.
The other grammar schools in the city - Lumen Christi, Thornhill, and Foyle and Londonderry - have already said they will apply academic selection.
On Monday, the Commission for Catholic Education gave the the go-ahead for Catholic grammar schools in Northern Ireland to set entrance exams.
The Commission has also restated its position that academic selection of any kind should end by 2012.
Some Catholic grammar schools had already revealed their plans to set entrance exams in the absence of an official test.
Education Minister Catríona Ruane said she welcomed the Catholic sector's contribution to the debate.