Lomas de Zamora concentrates the traffic of the southern suburbs: Hipólito Yrigoyen avenue and Camino Negro, Provincial Route 4 (Camino de Cintura) and the La Noria bridge connect it with the City, with La Matanza and with the south of the province, with speed and red-light cameras on the main corridors. Municipal fines are issued by the partido; provincial ones overlap on the same plates.

Context and authority

The partido adheres to the National Traffic Law 24.449 through the provincial law: fines are expressed in fixed units and lapse after two years if minor and five if serious. Municipal fines are ruled on by the partido’s misdemeanour court; those issued by the province follow their own circuit, described in the Buenos Aires article.

The municipal misdemeanour court rules on fines issued within the partido: speeding on Camino Negro and Hipólito Yrigoyen avenue, red lights at camera-equipped intersections, parking in downtown Lomas and in Banfield, and lanes at the access roads. A defence is filed with the court within the period set by the notice.

What the API returns for this jurisdiction

A plate lookup in Lomas de Zamora walks the Lomas de Zamora municipal misdemeanour court together with the integrated provincial sources of Buenos Aires, and returns each fine with the authority that issued it:

  • Authority and fine number exactly as each court publishes them.
  • Date, location when reported and description of the infraction.
  • Amount, status and payment conditions published by that court.
  • Downloadable payment slip when one exists.
  • Coverage per source and partial-result flag.

What the data shows

Proprietary dataLomas de ZamoraSeptember 1, 2025 – August 31, 2026
Lookups with at least one open fine
9%
Fines offering voluntary early payment
38%
Median age of fines without a recorded resolution
240 days
Median amount band
ARS 250,000 – ARS 500,000

Mix by infraction category

  1. Speeding47%
  2. Red light and right of way27%
  3. Parking24%
  4. Lanes and manoeuvres10%
  5. Other infractions0%

Monthly distribution of fines

  1. Jan14%
  2. Feb12%
  3. Mar15%
  4. Apr9%
  5. May5%
  6. Jun3%
  7. Jul1%
  8. Aug0%
  9. Sep11%
  10. Oct6%
  11. Nov6%
  12. Dec17%

Sample: 1.000–5.000 fine records, 50.000+ lookups · See the data methodology

9% of the plate lookups in the period found at least one Lomas de Zamora fine without a recorded resolution: the highest share among the southern partidos we publish, consistent with a transit partido with speed cameras on its corridors.

Almost half of the fines observed are for speeding; red lights and parking split most of the rest. The median amount band is ARS 250,000 – ARS 500,000 and the median age of open fines is 240 days.

Only 38% of the fines offered voluntary payment at lookup time: in Lomas, unlike Lanús or Ezeiza, most of the fines we found no longer had a discount available, which makes discovering them late more expensive.

Case study: fleets that look up plates in Lomas de Zamora

Proprietary dataFleet cohortSeptember 1, 2025 – August 31, 2026
Fleet lookups with at least one open fine
11%
Fleet accounts in the sample
50
Distinct plates looked up by fleets
2,040

Sample: 1.000–5.000 fine records, 50.000+ lookups · See the data methodology

The fleet cohort, 50 accounts with twenty or more plates and 2,040 plates in total, found at least one Lomas fine in 11% of its lookups, above the general public: fleets travel the camera corridors more than the average driver.

For a passenger transport or logistics company that uses Camino Negro every day, the reading is direct: look up each plate at month end and, above all, before the defence deadlines expire, because in this partido a fine that shows up late rarely keeps its discount.

How to integrate

The integration starts with one POST per plate, with the jurisdiction as an optional filter. Since courts answer at their own pace, the API accepts the job and delivers the result by status or webhook; store the idempotency key before sending, as the asynchronous APIs guide describes. The API page details access.

JSONIllustrative example, not a contract.
{
  "plate": "ABC123",
  "jurisdictions": [
    "AR-B-lomas-de-zamora"
  ]
}

The result arrives split by authority: a municipal court with no fines says nothing about the provincial source or the neighbouring municipalities, and the partial-result flag shows whether any source failed to answer.

Limits and considerations

  • Speeding fines from Camino Negro and Hipólito Yrigoyen avenue are served on the registered owner; a unit whose owner lives outside the partido discovers them by lookup before by mail.
  • Fixed-unit amounts are converted at the value current at the source; the final amount is set by the authority at the time of payment.
  • Proprietary data comes from user lookups, not from a registry: the share of fines is skewed towards suspect plates.
  • A source that does not answer is reported as such, never as an absence of infractions.
  • The API neither pays fines nor handles defences; it delivers information to decide.

Sources and further reading