SHORT ANSWER
No. Under current EU pet travel rules, dogs and cats follow the exact same vaccination and titer testing timeline when moving from the United States to Portugal. Both species need a microchip implanted before the rabies vaccine, a rabies shot given by an accredited vet, and a 21 day (or manufacturer recommended) waiting period before travel. Because the United States is a "listed" third country under EU rabies rules, neither dogs nor cats need a rabies titer test (RNATT), unlike pets moving to non-listed destinations such as Australia. The one real difference between the species has nothing to do with vaccines: it is the extra paperwork required for a short list of dog breeds classified as potentially dangerous, which cats never have to deal with.
Most pet owners assume that because dogs and cats have different veterinary needs in general, they must follow different import tracks for international travel. Portugal's rules do not work that way. The Direção-Geral de Alimentação e Veterinária (DGAV), Portugal's veterinary and food safety authority, addresses non-commercial entry for "Cães e Gatos" (Dogs and Cats) as a single combined category on its official guidance for pets arriving from outside the EU (DGAV: Entrar em Portugal a partir de um país fora da UE). The same is true on the US side. The USDA APHIS pet travel page for Portugal lists "Dogs, Cats, and Ferrets" together under one shared set of steps for microchipping, rabies vaccination, and health certification, with no separate track for any one species (APHIS: Pet Travel From the United States to Portugal).
This matters because families relocating with both a dog and a cat sometimes assume they are managing two separate regulatory processes. In practice, it is one process, run on the same clock, with the same paperwork format, for both animals.
Whether you are traveling with a Labrador or a tabby cat, the rabies vaccination sequence is identical:
None of these five steps differ by species. A cat and a dog vaccinated on the same day, by the same vet, are on the exact same countdown to travel eligibility.
This is the point of confusion that drives the most questions from pet owners moving to Portugal, especially anyone who has researched Australia's pet import rules first. Australia requires a rabies neutralizing antibody titer test (RNATT) with a mandatory 180-day wait for every dog, regardless of species-specific factors, because Australia is rabies-free and treats every arrival as a higher biosecurity risk.
Portugal, as an EU member state, works differently. The EU classifies third countries into two groups for rabies risk purposes: listed countries, which are considered lower risk, and non-listed countries, which are not. The United States is a listed country. DGAV's own guidance confirms that the titer test requirement is reserved for animals coming from countries that are not on that list. As of September 2024, DGAV specifically flagged that Belarus and Russia were removed from the listed country group, meaning dogs and cats from those two countries now must complete a titer test and a three-month wait after the blood draw before entering Portugal (DGAV notice on titer requirements for Belarus and Russia). The United States was not included in that change, and nothing on either the DGAV or APHIS Portugal pages requires a titer test for pets, of any species, traveling from the US.
In short: the titer test difference pet owners often worry about is a difference between countries of origin, not a difference between dogs and cats.
If there is a genuine species-specific wrinkle in this process, it belongs entirely to dogs. Portugal maintains a list of seven breeds classified as potentially dangerous, which require additional documentation at the Point of Entry beyond the standard health certificate. This is not a ban, and it has nothing to do with vaccination or titer testing timelines. It is a separate administrative requirement that applies at arrival, and it simply does not exist for cats, since cats are not subject to any breed-based import classification in Portugal.
The EU non-commercial health certificate used for entry into Portugal covers dogs, cats, and ferrets on a single form. The certificate is valid for 30 days after an accredited veterinarian issues it, and USDA must endorse it within 10 days of the pet's arrival in the EU. Whether you are traveling with one dog, one cat, or both, the certificate timeline, the endorsement window, and the required documentation are identical.
Adam Melton, VP of Strategic Initiatives at Starwood Pet Travel, sees this misunderstanding come up constantly with multi-pet households: "Families moving with a dog and a cat often build two separate mental timelines, one for each animal, because that's how it works for a lot of other travel logistics. With Portugal, that instinct actually works against you. The microchip-then-vaccine order, the 21-day wait, the one-year primary vaccine rule, none of it changes based on species. If you build your timeline around the vaccination date, both pets can move through the process together without one animal's paperwork holding up the other's."
This exact point of confusion shows up regularly in expat communities. In a thread on r/PortugalExpats, one user relocating a dog to Portugal wrote: "In regards to pets I took my dog here and it was fairly easy. Unlike the other op posted my dog required no blood test but not sure about cat. Just make sure that you have a traceable vaccine record with 0 gaps in any vaccine especially the rabbie one" (r/PortugalExpats discussion). That uncertainty about whether cats face a different, stricter standard than dogs is common, and as the official DGAV and APHIS guidance confirms, they do not.
Both dogs and cats are affected equally by the regulatory update currently rolling out across the EU. DGAV's guidance states that new rules under Delegated Regulation (EU) 2026/131 became applicable on April 22, 2026, replacing the previous framework under Regulation (EU) 576/2013. Separately, APHIS notes that the new health certificate templates required under this same regulation, along with companion Regulation (EU) 2026/848, become mandatory for exports from the US starting October 1, 2026, with certificates already in process still endorsable through September 30, 2026. Pet owners should treat these as two related but distinct dates: the regulation itself took legal effect in April 2026, while the new certificate paperwork format has its own separate compliance deadline in the fall. Neither date changes the vaccination or titer timeline for dogs or cats; they affect which certificate template your vet uses.
For the full relocation timeline from microchip to arrival, see our complete guide to moving a pet from the US to Portugal. If you are trying to sort out delays specific to your situation, our breakdown of common causes of import delays covers the paperwork issues that trip up dog and cat owners alike.