Construction Site Workplace Accidents in Buenos Aires

ART workers' compensation covers falls from height, machinery strikes, and crush injuries on any construction site, no matter how many times you changed employers within the same project. Whether you work for the general contractor, a subcontractor, or off the books, you're entitled to the statutory payout — and, if there was serious negligence, you can choose a civil claim instead.

1. Common Site Hazards and What the Law Requires

Construction sites share a recognizable accident pattern: falls from height off scaffolding, roofs, or unguarded openings; strikes and crush injuries from heavy machinery — cranes, concrete mixers, hoists —; and strain injuries from moving materials without proper mechanical aids. Law 19,587 on Occupational Health and Safety doesn't settle for good intentions: it requires every employer on the site to install and maintain machine guards (Article 8.b), to supply and maintain personal protective equipment — hard hat, safety harness, protective footwear — (Article 8.c), to train workers on the specific risks of each assigned task (Article 9.k), and to report every accident that occurs (Article 9.l).

What makes a construction site different is that there's almost never a single employer. On any given day, the general contractor's own crew works alongside two or three UOCRA-registered subcontractors and staff supplied by a labor agency. For those cases, Article 3 of Law 19,587 sets a clear rule: when work is carried out at the principal's own facility — the site itself — or using machinery the principal supplies — the scaffolding, the crane, the hoist —, that principal is jointly and severally liable for compliance with the health and safety rules, regardless of who your direct employer is. If you fell off scaffolding the general contractor put up, even if a subcontractor signs your paycheck, that joint liability is already on your side before you even discuss the compensation amount.

2. ART Coverage or Civil Liability: What You Can Claim

ART pays without you having to prove your employer was at fault: it's enough to show the event happened because of the job or on the occasion of it (Article 6, Law 24,557). In exchange, the payout follows a statutory formula. That's why the law gives you a second path, but not a cumulative one: if your employer was seriously negligent — machinery without guards, poorly built scaffolding, no harness on work at height —, you can claim through a civil action instead of the statutory system, with the possibility of full compensatory damages. Article 4 of Law 26,773 states expressly that the choice is exclusive: you pick either the ART system or civil law for the same event, never both.

You don't have to decide upfront. Accepting in-kind benefits (medical care) or the temporary disability subsidy doesn't commit you to anything: you only exercise the election once you collect the final settlement or file the civil suit (Article 5, Law 26,773). If you go the civil route and the judgment ends up lower than what ART would have owed, the insurer must still deposit that difference into the case file (Article 6, Law 26,773). The Supreme Court opened this dual path in the Aquino ruling (CSJN, September 21, 2004), which struck down the original law's total bar on civil claims, and in the Torrillo ruling extended that civil liability to the ART itself whenever it failed its own prevention duties on the site.

3. Reporting, the Medical Commission, and Subcontracting on Site

Report the accident to your direct employer the moment it happens, even if the pain seems minor — a sprain you don't report today is an impairment you'll struggle to prove tomorrow. Reporting the accident is your employer's legal duty, not a favor (Article 9.l, Law 19,587), and if three days go by without ART scheduling your appointment, you can file a complaint through the Claims Management procedure (SRT Resolution 733/08).

Getting paid always runs through the Jurisdictional Medical Commission: it's the mandatory, exclusive prior administrative step for determining whether the accident is work-related, your disability percentage, and the amount of your benefits (Article 1, Law 27,348). The Supreme Court confirmed that requiring this step before going to court doesn't violate your right to a defense, in the Pogonza v. Galeno ART ruling (CSJN, September 2, 2021). What never changes: your attorney's fees and the costs of your participation before the Medical Commission are paid by ART, never by you (Article 1, Law 27,348).

The construction site's particularity: who answers when you were subcontracted

A construction site brings together the general contractor, one or more contractors, and, often, subcontractors that rotate with every phase of the job. If your direct employer is a small subcontractor you can't collect from, construction has its own joint-liability regime, separate from Article 30 of the Employment Contracts Act (LCT) that governs every other industry. Since the Law 27,802 reform (Official Gazette, March 6, 2026), Article 30 LCT clears the general contractor of all liability if it demanded each worker's CUIL, proof of wage and social security payments, the payroll account, and ART coverage with an endorsement clause in its favor from its contractors — but that reform stayed silent on construction-industry contractors and subcontractors, who answer to their own statute.

Construction runs on Article 32 of Law 22,250 instead: whoever hires or subcontracts construction services must demand proof that the contractor is registered with IERIC (the National Construction Industry Statistics and Registry Institute) and must notify IERIC of the job's start date and location. If the general contractor hired a subcontractor that never proved that registration, it is jointly and severally liable — by that omission alone — for that subcontractor's labor debts to the workers on that site.

It's the same process behind the IERIC Contributions Booklet your employer had to start within fifteen business days of your hire date (Article 13, Law 22,250). And if your direct employer never carried ART — common among informal subcontractors on site —, you're not left uncovered: the law requires it to answer directly, itself, for the same benefits an insurer would have paid (Article 28, Law 24,557). If, on top of that, you were working off the books for an employer with no ART, you don't have to go through the Medical Commission at all: Law 27,348 gives you direct access to court (Article 1, last paragraph).

4. Common Denial Grounds and How to Appeal

On a construction site, ART usually backs a denial with one of two arguments: that the event has no causal link to the job — common where crews rotate constantly and there are few fixed witnesses on site — or that the injury is a pre-existing condition. Once denied, you file the corresponding claim before the Medical Commission with your ID, the original accident report, and the insurer's reasoned denial, so an independent doctor can review the case.

Another frequent issue is a medical discharge with a disability rating that doesn't match the real injury, or a flat zero percent. Either way, you can file a Discharge Divergence claim before the Medical Commission; and if the insurer let twenty days pass from the end of your temporary disability without opening the disability-rating process itself, you can open it yourself (SRT Resolution 298/17). If the Medical Commission upholds a rating you consider unfair, the last resort is a court-appointed medical expert review before the National Labor Courts, drawn from the official forensic medical corps, with fees no longer tied to the amount of the case (Article 2, Law 27,348).

Frequently Asked Questions About Construction Site Accidents