UPS has retrofitted 2,000 package cars with cab air conditioning and sent them to the hottest US delivery zones by its June 1 deadline, the first checkpoint of a Teamsters heat-safety deal that effectively puts every Southern and Southwest fleet operator on the same clock.
UPS has air-conditioned 2,000 delivery trucks and moved them to its hottest US routes, hitting a June 1 deadline set by its Teamsters contract. It's the first checkpoint of a heat-safety deal that every Southern and Southwest fleet operator is now measured against.
How we got here: The retrofits stem from an October 2025 letter of agreement, negotiated after the Teamsters accused UPS of dragging its feet on the 2023 contract’s AC commitments, charging that the company had delivered only about 10% of the 28,000 vehicles it was obligated to buy or retrofit. The supplemental deal sets several distinct obligations:
2,000 retrofitted cars deployed by June 1, 2026 (met)
5,000 total retrofitted cars by June 2027, leaving 3,000 to go
A roughly 100-unit pilot cooling the cargo compartment, the hottest part of the truck
The original 28,000 new AC-equipped vehicles, a separate track with only about 2,800 delivered before the October agreement
Zoom out: The 2,000-truck number sounds big but barely dents the fleet. It's only about 4% of UPS's roughly 125,000-vehicle global ground fleet, so the overwhelming majority of UPS drivers still work without cab AC.
And the heat issue is no longer UPS's alone. OSHA's revised Heat National Emphasis Program, effective April 10, now runs five years and adds heat-priority-day inspection triggers, which means any company running delivery drivers in non-AC vehicles across Southern markets, union or not, faces a higher chance of a surprise federal inspection.
What to watch: The real test is the next checkpoint. UPS still has 3,000 retrofits to go to hit its 5,000-truck target by June 2027, and it already fell behind once before the October agreement forced the issue.
If the pace slips again, the Teamsters have made clear they'll grieve it. UPS "is being held accountable to make sure they deliver on every single heat protection that we won at the table," general president Sean O'Brien said.
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