A little-noticed City Council bill has become the first big business-policy fight of the new mayoral term, and its battlefield is the unglamorous network of last-mile warehouses that keep New York stocked. The presidents of New York’s five chambers of commerce wrote to Mayor Zohran Mamdani and Council Speaker Julie Menin on Monday urging them to reject the delivery regulation bill, warning it would “wipe out” more than 100 locally owned delivery companies and cost between 3,000 and 10,000 jobs “depending on how the industry responds,” according to The Center Square.

The proposal, filed by Councilwoman Tiffany Cabán, a Queens Democrat, would require operators of “last-mile” warehouses and storage facilities to obtain licenses from the Department of Consumer and Worker Protection and meet new safety, training and employment requirements. Its most consequential provision goes further: a ban on major logistics and delivery companies — Amazon and FedEx among them — from using third-party contractors or delivery service providers for last-mile deliveries and key warehouse operations across the five boroughs.

That structure is exactly what makes the fight unusual. In most American cities, the delivery economy’s middle layer is corporate; in New York, it is largely homegrown. Amazon alone relies on more than 40 third-party delivery companies in the city that employ more than 5,000 people, the chambers noted — many of them family-run operators with fleets, depots and dispatchers embedded in outer-borough neighborhoods. A ban on the contracting model would not merely reassign work to in-house employees; it would unwind an entire local supplier ecosystem that took a decade to build.

Mamdani threw his support behind the initiative in August, before his election, saying it would “rein in the power of corporate delivery giants like Amazon, hold them accountable for their exploitative business model and make New York City’s streets safer for workers, drivers and pedestrians.” His framing casts the bill as a worker-protection measure; the chambers’ response is that the workers most at risk are employed by the small firms the bill would eliminate. Opponents’ analysis estimates the legislation could cost city households an additional $664 a year in delivery costs if it takes effect.

“It is unfathomable that the city would advance legislation that puts thousands of jobs and businesses at risk when we have other options in front of us,” the chamber presidents wrote. “The full consequences for New York City’s workers, businesses, and economy are too significant to allow this bill to become law as is.” They proposed an alternative package instead: regulate dangerous delivery expectations and routes, require proven vehicle-safety technology, mandate public facility-level crash and injury reporting, and improve loading zones around delivery facilities — measures they argue could deliver the bill’s safety goals without dismantling the contractor model.

The standoff is a template fight for the new administration. It tests whether the city’s labor and small-business coalitions can be balanced within one bill, and how far the Council will go in restructuring an industry that has quietly become one of the boroughs’ biggest employers. For the city’s weekly readers — shop owners, fleet operators, warehouse workers — the outcome will be visible not in legislation text but in whether the white vans and green-and-blue trucks of the last-mile economy still carry local dispatchers’ names on the door.