You're quite correct that reference to the following heads of government institutions means the head of those offices that are listed in (a), (b), and (c).
On June 13th, 2006. See this statement in context.
On June 13th, 2006. See this statement in context.
Senior Counsel, Legal Services, Treasury Board Portfolio, Department of Justice
You're quite correct that reference to the following heads of government institutions means the head of those offices that are listed in (a), (b), and (c).
See context to find out what was said next.