MINISTERIAL INSTRUCTIONS RESPECTING INVITATIONS TO APPLY FOR PERMANENT RESIDENCE UNDER THE EXPRESS ENTRY SYSTEM (MARCH 27, 2015)
Number of 
invitations
… the number of invitations that may be issued during the period beginning on March 27, 2015 and ending on March 28, 2015 is 1,637.
Required rank
Foreign nationals who, on March 27, 2015 at 23:59:47 UTC, have been assigned a total of 453 points or more under the Comprehensive Ranking System that is set out in the Ministerial Instructions Respecting the Express Entry System, as published in the Canada Gazette, Part I, on December 1, 2014 and as amended from time to time, occupy the rank required to be invited to make an application for permanent residence.