Chacabuco is an agricultural partido in north-western Buenos Aires province on the Buenos Aires–Mendoza corridor: National Route 7 crosses it with a controlled urban stretch, Route 30 connects it with Junín and Salto, and the silos, grain storage plants and machinery dealers move grain trucks and transit equipment throughout the season. Municipal fines are issued by the partido; route and provincial fines coexist on the same plates.
Context and authority
Amounts and deadlines follow the National Traffic Law 24.449 and Buenos Aires’s adhesion: fixed units, a two-year limitation for minor offences and five for serious ones, a defence before the authority that issued the fine. This article covers municipal fines; the provincial circuit is in the Buenos Aires article.
The municipal misdemeanour court rules on fines issued within the partido: speeding on the urban stretch of Route 7 and on the access avenues, lanes and manoeuvres at the silo approaches and parking downtown. A defence is filed with the court within the period set by the notice; Route 7 fines outside the town limits are not municipal.
What the API returns for this jurisdiction
In Chacabuco the API queries the Chacabuco municipal misdemeanour court and, in the same lookup, the other integrated sources of Buenos Aires; it 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.
How to check a plate in Chacabuco
To check a plate by hand there are three places: the Chacabuco municipal portal for municipal fines, the provincial circuit described in the Buenos Aires article and the ANSV national lookup for fines loaded into the national system. With ten vehicles that is enough; with a hundred, the API walks every integrated source by plate and returns the result split by authority.
What to watch if you run a fleet in Chacabuco
A grain truck going from the core farming area to the port along Route 7 crosses Chacabuco’s urban stretch with speed checks on every trip; the fine reaches the owner’s address weeks later. Looking up each plate at month end, with the per-source result stored, assigns the fine to the driver and covers the defence in time.
For a machinery or agricultural service company with equipment rotating between farms, fines pile up on plates that change operator every week; a plate lookup at the close of each season avoids discovering them when renewing the technical inspection.
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.
{
"plate": "ABC123",
"jurisdictions": [
"AR-B-chacabuco"
]
}Limits and considerations
- Fines on national and provincial routes outside the town limits are not municipal; the response names the authority of each.
- 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.
- 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.


