PUBLIC LAW 103-414 —OCT. 25 1994 108 STAT. 4281 (A) before, during, or immediately after the transmission of a wire or electronic conmiunication (or at such later time as may be acceptable to the government); and (B) in a manner that allows it to be associated with the communication to which it pertains, except that, with regard to information acquired solely pursuant to the authority for pen registers and trap and trace devices (as defined ia section 3127 of title 18, United States Code), such caU-identlftdng information shall not include any information that may disclose the physical location of the subscriber (except to the extent that the location may be determined from the telephone niunber); (3) delivering intercepted conmiunications and call-identify- ing information to the government, pursuant to a court order or other lawful authorization, in a format such that they may be transmitted by means of equipment, facilities, or services procured by the government to a location other than the premises of the csirrier; and (4) facUitating authorized communications interceptions and access to call-identifying information unobtrusively and with a minimum of interference with any subscriber's teleconmiunications service and in a manner that protects— (A) the privacy and security of communications and caU-identifving information not authorized to be intercepted; ana (B) information regarding the governmenfs interception of commimications and access to call-identifying information. (b) LIMITATIONS.— (1) DESIGN OF FEATURES AND SYSTEMS CONFIGURATIONS. — This title does not authorize any law enforcement agency or officer— (A) to require any specific design of equipment, facihties, services, features, or system configurations to be adopted by any provider of a wire or electronic commimication service, any manufacturer of telecommunications equipment, or any provider of telecommunications support services; or (B) to prohibit the adoption of any equipment, facility, service, or feature by any provider or a wire or electronic communication service, any manufacturer of telecommunications equipment, or any provider of telecommunications support services. (2) INFORMATION SERVICES; PRIVATE NETWORKS AND INTER- CONNECTION SERVICES AND FACILITIES. —The requirements of subsection (a) do not apply to— (A) information services; or (B) equipment, facilities, or services that support the transport or switching of conmiunications for private networks or for the sole purpose of interconnecting telecommunications carriers. (3) ENCRYPTION.— A telecommunications carrier shall not be responsible for decrypting, or ensuring the government's abihty to decrypt, any communication encr3T)ted by a subscriber or customer, unless the encryption was provided by the carrier and the carrier possesses the information necessary to decrypt the communication.