Changes made by 1999/90/EC: Commission Decision of 25 January 1999 on the procedure for attesting the conformity of construction products pursuant to Article 20(2) of Council Directive 89/106/EEC as regards membranes (notified under document number C(1999) 114)
EU Decision 1999/90
No changes made by 1999/90/EC: Commission Decision of 25 January 1999 on the procedure for attesting the conformity of construction products pursuant to Article 20(2) of Council Directive 89/106/EEC as regards membranes (notified under document number C(1999) 114) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.