CBP is acquiring contractor services ( 8(a) set aside) to perform maintenance, repair and improvement services for TI assets in the Tucson Sector, in the following categories: roads and bridges; fence and gates (including concertina wire); vegetation control; debris removal; border lighting and electrical; drainage and grate systems; and tunnel remediation. These services will be required for CBP's tactical infrastructure (TI) assets within the Tucson Sector in Tucson, Arizona. Maintenance: Work required to preserve TI assets or equipment in such a condition that it may be effectively utilized for its designated purpose. Work to restore an existing asset to pre-existing condition so that it may be effectively utilized for its designated purpose. Work that enhances the mission and functional capabilities of an asset through an addition, expansion, or adaptation. Work effort will be confined to the existing TI footprint. Unscheduled (see below) work that exceeds $750,000.00 will not be executed under this contract. This is a Single Awrad 5-Year Contract with two (2) execution tiers: 1-Scheduled Maintenance, 2 – Unscheduled Maintenance. See 70B01C26R000000080 TCA TI Maint - Cover and RFP