Environmental assessment methods for trans-European transport networks - Corrigendum The European Commission, DG XI, has published a corrigendum to its recent invitation to tender concerning the development of methods for the strategic environmental assessment of trans-European transport networks (OJ No S 57 of 21.3.1998, p. 42). The deadline for submission o... The European Commission, DG XI, has published a corrigendum to its recent invitation to tender concerning the development of methods for the strategic environmental assessment of trans-European transport networks (OJ No S 57 of 21.3.1998 p. 42). The deadline for submission of tenders has been put back to 12 May 1998. The date of opening tenders has also been changed, and will now be 20 May 1998.