Listing Particulars

National Grid Transco PLC
18 December 2003


FORMAL NOTICE FOR SPECIALIST SECURITIES
PUBLICATION DATE:                 18 December, 2003
Application has been made to the UK Listing Authority for the following securities to be admitted to the Official List.
DETAILS OF ISSUE:                 EUR 6,000,000,000 Euro Medium Term Note Programme
ISSUER:                           National Grid Transco plc        National Grid Company plc
                                  1-3 Strand                       1-3 Strand
                                  London                           London
                                  WC2N 5EH                         WC2N 5EH
INCORPORATED IN:                  England
AUTHORISED ADVISOR:               HSBC Bank plc
Particulars of the issue may be obtained from the addresses detailed below for a period of 14 days in respect of
stand-alone bonds or in the case of programmes, throughout the life of that programme.
National Grid Transco plc         National Grid Company Plc        Clifford Chance Limited Liability Partnership
1-3 Strand                        1-3 Strand                       10 Upper Bank Street
London WC2N 5EH                   London WC2N 5EH                  London E14 5JJ
In addition, a copy of the Particulars is available for inspection at the Document Viewing Facility at the Financial
Services Authority, 25 The North Colonnade, London E14 5HS.




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