Tactical Infrastructure Maintenance in Tucson

See attached Amendment 00001 - dated 18June2026: The purpose of this Amendment 00001 is to: 1. Provide responses to vendor

questions {TCA QAs - 18JUNE2026) 2. Revise, replace and incorporate Attachment 04 - Schedule Work Form - 17 JUNE2026 3. Revise, replace and incorporate Wage Determinations (DBA and SCA - Heavy) Pima County - 17 JUNE2026 4. Extend the due date to 12PM Eastern Time, June 26, 2026 Note: The List (excel) of TCA Site Visit Attendees attached to Amendment 00001 ----- 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 Muhanad Sasa Alternative

Point of Contact Donna McMullen Contracting (No Street Address

2) WASHINGTON, DC 20229 USA to this opportunity. 70B01C26R00000080 TCA TI MAINTENANCE COVER LETTER Revised - 18JUNE2026 FINAL.pdf Copy of TCA Site Visits_Confrimed Attendees.xlsx Attachment 4 Scheduled Work Form TCA - 18JUNE2026 w Unsched.xlsx 70B01C26R00000080 TCA QAs - 18JUNE2026.xlsx 70B01C26R00000080 Amendment 00001 18JUNE2026_CO_Signed.pdf WDs_2015-5473_SCA_Arizona Pima County 17JUNE2026_.pdf WDs_AZ20260059_DBA_Arizona_Heavy_Pima County 17JUNE2026_.pdf 70B01C26R00000080 TCA TI MAINTENANCE COVER LETTER - 06JUNE2026 FINAL.pdf (deleted) Attachment 5 TCA Gate Inspection_Shelter_Specs TCA.pdf Attachment 1 SOW TCA v3.pdf 70B01C26R00000080 TCA TI Maintenance (003).pdf Attachment 2 SCA Wage Determination.pdf (deleted) Attachment 2 DBA Wage Determination.pdf (deleted) Attachment 3 Unit Priced Bid Sheet v1.xlsx Attachment 4 Scheduled Work Form TCA.xlsx (deleted)