Home1991 Treaties and Agreements ...European Union (91-923) – Agreement Regarding the Application of Competition Laws hide European Union (91-923) – Agreement Regarding the Application of Competition Laws TIAS Office of Treaty Affairs September 23, 1991 Trade and Investment: Competition Laws Agreement signed at Washington September 23, 1991; entered into force September 23, 1991. Download Agreements [777 KB] Tags European Union Trade and Investment Treaties