City Law Forces Delivery Apps to Open Their Algorithms to Auditors

Six months after the nation’s first algorithmic-transparency ordinance for gig work took effect, city auditors have completed their initial inspection of the pay-setting systems used by four major delivery platforms — and the early results explain why drivers fought for the law.

The audits found that two platforms’ algorithms systematically offered lower per-mile rates to drivers who accepted jobs quickly, effectively penalizing the workers most dependent on the income. One platform adjusted offers based on inferred access to other income sources. Under the ordinance, both practices now require disclosure, and the differential-offer system has been discontinued citywide.

Drivers’ organizations call the findings vindication of a simple principle: an algorithm that sets pay is a boss, and bosses are subject to labor law. "For years we were told the black box was too complex to explain," said an organizer with the App Workers Guild. "It turns out it was too embarrassing to explain."

Platforms complied under protest and continue to challenge portions of the law in court, arguing that pay algorithms are trade secrets and that disclosure will let competitors and bad actors game dispatch systems. The city’s auditing framework — inspection by bonded third parties under confidentiality, publishing findings rather than code — was designed to blunt exactly that argument, and so far courts have let it stand.

Copycat ordinances are moving in six cities and two state legislatures. Labor scholars say the model’s significance reaches past gig work: it establishes that algorithmic management can be inspected like any other workplace condition — the payroll ledger of the platform age.