- TRADE/WP.4/R.1234 Recommendations for the Establishment of UN/CEFACT . The original text of TRADE/R.650 was approved by Working Party 4 ( WP.4 ) , the predecessor of the United Nations Centre for Trade Facilitation and Electronic Business ( UN/CEFACT ) , at its final meeting in September 1996 and by the Committee on the Development of Trade in December 1996 .