outbound traffic. (B) Extension The Secretary may extend for a single two-year period the date specified in subparagraph (A) if the Secretary certifies to the Committee on Homeland Security and Governmental Affairs of the Senate, the Committee on the Judiciary of the Senate, the Committee on Homeland Security of the House of Representatives, and the Committee on the Judiciary of the House of Representatives that the 15 land ports of entry that support the highest volume of passenger vehicles, as determined by available Federal data, do not have the physical infrastructure or characteristics to install the systems necessary to implement a biometric exit data system. (3) At air and sea ports of entry Not later than five years after the date of the enactment of the Building America’s Trust Act , the Secretary shall expand the biometric exit data system referred to in subsection (a)(2) to all air and sea ports of entry. (4) At land ports of entry for pedestrians Not later than five years after the date of the enactment of the Building America’s Trust Act , the Secretary shall expand the biometric exit data system referred to in subsection (a)(2) to all land ports of entry, and such system shall apply only in the case of pedestrians. (c) Effects on air, sea, and land transportation The Secretary, in consultation with appropriate private sector stakeholders, shall ensure that the collection of biometric data under this section causes the least possible disruption to the movement of people or cargo in air, sea, or land transportation, while fulfilling the goals of improving counterterrorism efforts and identifying visa holders who violate the terms of their visas. (d) Termination of proceeding Notwithstanding any other provision of law, the Secretary shall, on the date of the enactment of the Building America’s Trust Act , terminate the proceeding entitled Collection of Alien Biometric Data Upon Exit From the United States at Air and Sea Ports of Departure