Emergency Warning Act of 2003

Emergency Warning Act of 2003 - Directs the Secretaries of Commerce and Homeland Security to establish comprehensive national standards and systems for providing effective public warnings.

Directs the Secretary of Commerce to: (1) develop and implement benchmarks assessing current all-hazard warning capabilities; (2) conduct research and pilot programs to determine and improve the effectiveness of such warnings; (3) develop specifications for a national backbone for collecting and routing all-hazard warnings; (4) use the full range of communications technologies to provide warnings; (5) provide public warnings through automatic alert televisions and radios; and (6) educate the public about such warnings.

Directs the Secretary of Homeland Security to: (1) develop and recommend standards and guidelines for universal all-hazard terminology and protocols, and (2) issue warnings related to acts of terrorism and other public safety threats via a public warning system.