Exhibit 31 CERTIFICATION Re: CDC Mortgage Capital Trust 2003-HE3 Mortgage Pass- Through Certificates, Series 2003-HE3, issued pursuant to the Pooling and Servicing Agreement, dated as of August 1, 2003 (the "Pooling and Servicing Agreement'), among...Pooling and Servicing Agreement • March 29th, 2004 • Morgan Stanley Abs Capital I Inc CDC Mor Cap Tr 2003-He3 • Asset-backed securities
