Ms. Folco, you asked why Public Works and Government Services handles contracts for the Department of National Defence and whether it does so for all federal government departments.
The first question is legislative in nature. Public Works and Government Services was established through legislation. Under this statute, the minister is responsible for procurement. The minister has the exclusive authority to purchase goods for all federal departments. All federal departments that come under the Financial Administration Act deal with Public Works. However, Treasury Board has delegated authority to some departments for service procurement.