The Legislature of the Autonomous City of Buenos Aires approved the creation of a Voluntary Blood Donor Registry for Canines and Felines, a public, free, and voluntary database that will facilitate access to transfusions in emergency situations.
The measure aims to strengthen veterinary hemotherapy and address a common issue: the difficulty in finding compatible blood in critical cases.
How the registry will work
- Public and free digital platform managed by the City Government.
- Voluntary registration of dogs and cats by their guardians residing in CABA.
- Immediate contact network between families and veterinary centers to locate nearby donors.
- Mandatory health certificate issued by a licensed veterinarian confirming the animal is fit to donate.
- Sworn statement to ensure the donation is altruistic and free of charge.
Background and state support
The initiative draws on community experiences like the Proyecto Lila, a self-managed blood donation platform for animals.
The difference is that it will now have state support, ensuring data updates and the protection of participants’ personal information.
Additional benefits
In addition to facilitating emergency transfusions, the registry will generate health benefits:
- Preventive medicine: periodic check-ups promote early detection of diseases.
- Blood typing: allows knowing each animal’s blood group, speeding up compatibility in future donations.
- Social awareness: educational campaigns on the importance of veterinary hemotherapy and the value of voluntary donation.

Regulation and next steps
Following legislative approval, the Buenos Aires Executive Power must:
- Regulate the law and define the implementing authority.
- Establish biological and veterinary criteria (age, minimum weight, donation frequency).
- Officially enable the registration of dogs and cats on the City’s web platform.
Expected impact
The creation of the registry will allow:
- Reducing search times in emergencies, where every minute is vital.
- Strengthening the veterinary care network in CABA.
- Promoting a culture of solidarity and prevention in the care of companion animals.
The official blood donor registry for dogs and cats in CABA represents a historic advancement in urban veterinary medicine.
By combining solidarity, prevention, and technology, the initiative seeks to save lives and establish a support network that places animals at the center of public health policies.



