1. This Annex enters into force July 1, 1999.
2. This Annex does not apply to contracts entered into before July 1, 1999 or to calls for tenders or other procurement procedures initiated before such date.
3. Each Province shall not establish new trade barriers or increase the non-conformity of existing non-conforming measures in the areas to be covered by this Annex between the date it adheres to this Annex and the entry into force of this Annex.
4. Each Province is responsible for compliance with this Annex by its entities covered by this Annex.