Changes to 1999/322/EC: Council Decision of 3 May 1999 authorising the Secretary-General of the Council of the European Union in the context of the integration of the Schengen acquis into the framework of the European Union to act as representative of certain Member States for the purposes of concluding contracts relating to the installation and functioning of the Help Desk Server of the Management Unit and of the Sirene Network Phase II and to manage such contracts
EU Decision 1999/322
The legislation that changes 1999/322/EC: Council Decision of 3 May 1999 authorising the Secretary-General of the Council of the European Union in the context of the integration of the Schengen acquis into the framework of the European Union to act as representative of certain Member States for the purposes of concluding contracts relating to the installation and functioning of the Help Desk Server of the Management Unit and of the Sirene Network Phase II and to manage such contracts, newest first. Choose one to see each change.
From legislation.gov.uk's record of changes, the official one: see it there.