CLEAR Act of 2007

Clear Law Enforcement for Criminal Alien Removal Act of 2007 or CLEAR Act of 2007 - States that: (1) state and local law enforcement personnel, in the course of their routine duties, have the inherent authority to investigate, apprehend, or transfer to federal custody aliens in the United States (including interstate transportation of such aliens to detention centers) in order to assist in the enforcement of U.S. immigration laws; and (2) effective two years after enactment of this Act, a state that has in effect a statute, policy, or practice prohibiting such law enforcement assistance shall not receive certain federal incarceration assistance.

Amends the Immigration and Nationality Act with respect to illegal aliens to: (1) establish criminal penalties for aliens unlawfully present in the United States; (2) increase specified criminal penalties for illegal entry and failure to depart violations; and (3) expand the scope of, and increase, civil penalties for improper entry or failure to depart.

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

Encourages states and localities to provide the Department of Homeland Security with specified information about apprehended illegal aliens. Provides federal reimbursement for related State and local costs. (States that such provision shall not require state or local enforcement officials to provide the Department with information related to a victim of a crime or witness to a criminal offense.)

Directs the Secretary of Homeland Security to make grants to states and political subdivisions that enforce immigration laws in the course of their routine law enforcement duties for special equipment and facilities related to arresting, detaining, or transporting illegal aliens.

Directs the Secretary to: (1) construct or acquire 20 additional detention facilities for aliens detained pending removal (or a decision on removal); and (2) consider the transfer of military installations under base closure laws for such purposes.

Amends the Immigration and Nationality Act with respect to illegal aliens apprehended by state or local authorities to provide for: (1) federal custody upon state or local request; and (2) state or local compensation for related incarceration and transportation costs.

States with respect to an alien subject to removal that the Attorney General or Secretary shall ensure such alien's detention in an adequate (as defined by this Act) state or local prison, detention center, or other comparable facility prior to his or her removal examination.

Directs the Secretary to establish immigration-related training for state and local personnel.

Provides: (1) personal liability immunity to the same extent as corresponding federal immunity for state or local personnel enforcing immigration laws within the scope of their duties under this Act; and (2) civil rights money damage immunity for state or local agencies enforcing immigration laws unless their personnel violated criminal law in such enforcement.

States that the Department shall continue to operate the institutional removal program (IRP), which shall be expanded to all states.

Authorizes state or local detention of an illegal alien after completion of such alien's prison sentence for: (1) up to 14 days to facilitate federal transfer; or (2) until transfer to the U.S. Immigration and Customs Enforcement.

Amends the Immigration and Nationality Act to authorize appropriations at a specified level for FY2012 and subsequent fiscal years for the state criminal alien assistance program (SCAAP).