Child Safety Lock Act of 2003

Child Safety Lock Act of 2003 - Amends the Brady Handgun Violence Prevention Act to prohibit a licensed manufacturer, importer, or dealer from selling, delivering, or transferring a handgun without a locking device to any person other than a licensed manufacturer, importer, or dealer, with exceptions for law enforcement and governmental entities.

Specifies that nothing in this Act shall be construed to create a cause of action against any firearms dealer or any other person for civil liability, or establish any standard of care.

Makes evidence regarding compliance or noncompliance with this Act inadmissible in a proceeding of any court, agency, board, or other entity, except with respect to an action to enforce this Act.

Sets forth civil penalties (in addition to any administrative penalties) for related violations, including suspension or loss of license.

Amends the Consumer Product Safety Act to direct the Consumer Product Safety Commission to initiate a rulemaking proceeding to establish a consumer product safety standard for locking devices.