A bill to clarify the legal standard needed to use cellular telephones as tracking devices.

Amends federal criminal code provisions regarding: (1) the interception of wire, electronic, and oral communications to include within the definition of "contents" of any such communication contemporaneous, real-time, or prospective information regarding the physical location of a cellular telephone; and (2) search and seizure provisions pertaining to the use of mobile tracking devices to include within the definition of "tracking device" a cellular telephone for which the government seeks contemporaneous, real-time, or prospective information regarding its location.