If a carrier has requested payment in accordance with procedures promulgated pursuant to subsection (e) of this section, and the Attorney General has not agreed to pay the telecommunications carrier for all reasonable costs directly associated with modifications necessary to bring any equipment, facility, or service deployed on or before January 1, 1995, into compliance with the assistance capability requirements of section
1002 of this title, such equipment, facility, or service shall be considered to be in compliance with the assistance capability requirements of section
1002 of this title until the equipment, facility, or service is replaced or significantly upgraded or otherwise undergoes major modification.