Sunline Transit Agency

Sunline Transit Agency, a local government entity headquartered in Thousand Palms, California, is a federal grant recipient (87% prime awards) that operates fixed-route and paratransit bus services in the Coachella Valley and receives direct funding from the Federal Transit Administration and the Department of Energy for transit operations, fleet modernization, and clean-energy infrastructure development.

Sunline's federal footprint consists entirely of grant funding—no contract work—concentrated in two core areas: transit operations and zero-emission fleet deployment. As an operating agency, Sunline receives recurring operating assistance grants under FTA Section 5307 (CFDA 20.507) to cover eligible operating expenses including operator salaries, fuel, maintenance, and consumables. Simultaneously, Sunline pursues capital grants for fleet replacement and hydrogen infrastructure. Recent examples include a $10.322 million Section 5307 operating assistance grant awarded March 12, 2026 (obligated through December 31, 2026); a $3.35 million Section 5307 capital grant for planning, design, procurement, and construction of a public liquid hydrogen fueling station at its Indio facility (awarded September 16, 2025, completion January 31, 2028); an $8.74 million Buses and Bus Facilities grant (CFDA 20.526) awarded August 22, 2025 for procurement and deployment of six hydrogen fuel cell electric buses; and a $625,000 Community Project Funding Congressionally Directed Spending grant (CFDA 20.534) awarded July 28, 2026 for the architectural and engineering phase of a renewable energy microgrid project to support hydrogen fuel production. Sunline also received a one-year cooperative agreement with the Department of Energy's Office of Energy Efficiency and Renewable Energy (April 1, 2023, completion March 31, 2024) for the Clean Cities Outreach Education and Performance Tracking Grant Program, and a $525,000 ARPA operating assistance grant (April 3, 2023) to support pandemic-related operating costs.

The Federal Transit Administration accounts for 89% of Sunline's 85 total awards across the available award history, with the Department of Energy and the Department of Transportation Federal Highway Administration rounding out a concentrated customer base. Sunline's award trajectory shows modest but steady activity over the past five years—two awards in 2022, rising to eight in both 2024 and 2025, with three awards recorded to date in 2026. Combined obligated dollars across all awards total $333.7 million, reflecting primarily operating grants and large capital vehicles for fleet and infrastructure. Sixteen awards face ultimate completion within the next twenty-four months, representing recompete exposure on operating assistance formulas and capital project execution milestones.

Sunline operates as a direct recipient on all named prime grants and carries no sub-recipients on its operating or primary capital awards. Two sub-awards appear in the record: a December 16, 2024 sub-award under Arches H2 LLC involving development of one hydrogen refueling station and purchase of thirteen 40-foot fuel cell electric buses, and a June 17, 2024 sub-award from the California Department of Transportation concerning Orange and Los Angeles County highway improvements. The agency's grant activity demonstrates a strategic pivot toward zero-emission transit infrastructure, with hydrogen fuel cell buses and renewable energy microgrids anchoring recent capital deployment, while maintaining steady operating support for demand-responsive paratransit and fixed-route services serving low-income, disabled, and senior populations in disadvantaged Coachella Valley communities.