Intermodal Equipment Safety and Responsibility Act of 2003 - Subjects controllers of interchangeable intermodal equipment to commercial motor vehicle safety regulation and liability, including systematic inspection, maintenance, and repair requirements.
Authorizes the Secretary of Transportation to conduct inspections.
Prohibits a controller from retaliating against any motor carrier in response to a request for safety maintenance or repair of equipment intended for interchange, including failing to provide requested safe equipment in a timely fashion.
Prohibits controller delegation of this maintenance responsibility.
Directs the Secretary to issue implementing regulations as part of the Federal Motor Carrier Safety Regulations.