CLEAR Act of 2003

Clear Law Enforcement for Criminal Alien Removal Act of 2003 or the CLEAR Act of 2003 - States that: (1) State and local law enforcement personnel are fully authorized to investigate, apprehend, or remove aliens in the United States (including interstate transportation of such aliens to detention centers) in the enforcement of U.S. immigration laws; and (2) a State that does not have a statute permitting enforcement of Federal immigration laws within two years of enactment of this Act shall not receive certain Federal incarceration assistance.

Amends the Immigration and Nationality Act with respect to illegal aliens to: (1) establish criminal penalties and forfeiture for aliens unlawfully present in the United States; (2) increase specified criminal and civil penalties for illegal entry and failure to depart violations; and (3) provide for payment of funds from certain civil penalties to State and local law enforcement agencies for apprehension of such aliens.

Provides for the listing of immigration violators in the National Crime Information Center database.

Requires States and localities to provide the Department of Homeland Security with specified information about apprehended illegal aliens. Eliminates certain Federal incarceration assistance for noncompliance.

Directs the Attorney General to make grants to local police agencies for equipment and facilities related to housing and processing illegal aliens.

Amends the Act to provide for Federal custody and State or local compensation of State or locally apprehended illegal aliens.

Establishes a process for State and local claims against the Federal Government for failure to cooperate in enforcing immigration laws.

Directs the Secretary or the Attorney General to establish immigration-related training for State and local personnel.

Provides: (1) personal liability immunity for Federal, State, or local personnel enforcing immigration laws within the scope of their duties; and (2) civil rights money damage immunity for Federal, State, or local agencies enforcing immigration laws unless their personnel violated criminal law in such enforcement.

States that the Department of Justice and the Department of Homeland Security shall continue to operate the Institutional Removal Program, which shall be expanded to all States.