Pet Microchips in Slovakia: Registration, Databases & Tracing

Slovakia’s official companion-animal register is called the Centrálny register spoločenských zvierat (CRSZ). However, the public website has been unavailable during repeated ChipTrace checks, so you should not rely on it as your only way to trace a microchip.

In this guide:

What do Slovak microchip numbers look like?

Most modern pet microchips follow the ISO standard and contain 15 digits.

The official ISO numeric country code for Slovakia is 703.

A Slovak country-coded microchip may therefore begin with 703. The 703 prefix is used in Slovak animal identification and has also appeared in Slovak dog records.

However, not every dog or cat living in Slovakia has a 703 chip.

Manufacturer-coded microchips are also found in Slovak pets. These start with the digit 9 rather than a country code. Slovak dog records include animals with manufacturer prefixes such as 941, 972, 939 and 977.

Manufacturer-coded numbers can appear in several countries, so they do not prove where the pet was chipped or registered.

Some animals also received their microchip in another country before arriving in Slovakia.

This is common with:

Imported dogs and cats
Pets adopted through foreign rescues
Animals that moved to Slovakia with their families
Former stray animals that later travelled abroad
Animals with manufacturer-coded microchips

A readable foreign or manufacturer-coded chip can still be linked to a Slovak registration. Dogs registered in Slovakia are recorded in the Central Register of Companion Animals (CRSZ), and Slovakia’s veterinary authority also recognises animals arriving from abroad with existing microchip identification.

In short, the first digits can give a clue about origin. They do not prove where the animal lives or which database holds the registration.

Example formats commonly found in Slovakia

Many different microchip numbers may appear in Slovakia. These examples show a few possible formats, but many other variations exist.

703123456789012 — Slovak country-coded microchip
972123456789012 — manufacturer-coded microchip
941123456789012 — manufacturer-coded microchip
276123456789012 — foreign country-coded microchip

A manufacturer-coded prefix can appear in more than one country. For this reason, use the prefix as a clue only.

Read our guide to pet microchip numbers for more detailed information and practical steps.

What should you do if you find a pet with a Slovak microchip?

First, make sure you have the full microchip number.

Ask a veterinarian, shelter or rescue to scan the animal carefully and check every digit. Even one wrong digit can lead you to the wrong result.

Then:

Use the free ChipTrace microchip lookup to check the available database, country and manufacturer routes.
Check PetMaxx, which currently lists Slovakia’s SRZ/CRSZ database.
Try the public CRSZ website if it is available.
Ask a Slovak veterinarian to check the registration if the public route does not work.
Check ROTZ, Slovakia’s register of captured and stray animals, to see whether the animal may have been picked up officially.
If the Slovak routes do not answer, continue with foreign databases and manufacturer or distributor tracing.

PetMaxx currently lists Slovakia as SRZ and links that entry to the CRSZ website.

What if CRSZ does not load?

This matters.

The public CRSZ website has not been reliably reachable during repeated ChipTrace checks.

That does not mean the microchip is unregistered.

A website not working and a negative microchip result are two different things.

If CRSZ does not load, try PetMaxx and ask a Slovak veterinarian to check the registration.

If those routes do not provide an answer either, continue with foreign databases and manufacturer tracing.

Do not give up just because the official website is not working.

What if the found animal is a cat?

Do not assume that a cat has no useful registration simply because Slovakia does not generally require ordinary domestic cats to be microchipped.

A microchipped cat may have a record connected to a Slovak or foreign pet passport, an international registration or a database in another country.

For a found cat:

Use ChipTrace to check the available routes.
Search PetMaxx.
Try CRSZ if the public service is available.
Ask a Slovak veterinarian to check the microchip and any available CRSZ or passport information.
Check ROTZ if the cat may have been picked up by an authorised service.
Continue with foreign databases and manufacturer or distributor tracing if the Slovak routes give no answer.

A negative result from the public CRSZ website is especially weak evidence when the website itself cannot reliably complete the search.

What if the microchip is not found?

A negative result does not prove that nobody registered the animal.

First, scan the animal again and confirm every digit.

Then consider the most likely possibilities:

Someone entered the microchip number incorrectly.
The animal has a foreign registration.
The chip uses a manufacturer prefix rather than 703.
The animal previously lived in another country.
The registration is recent.
The chip was implanted, but the registration was not completed.
The database you tried could not complete the search.
CRSZ itself is unavailable.

Keep searching even if you get a negative result

PetMaxx is particularly useful for Slovakia because it lists SRZ/CRSZ among the databases it searches.

However, PetMaxx may also report that it could not search an individual database.

If that happens in Slovakia, do not assume it means “not registered.”

It means the search could not be completed.

Ask a Slovak veterinarian to check the chip and continue searching databases in any country where the pet may previously have lived.

If you still find nothing, the microchip manufacturer or distributor may provide another route. In some cases, they can identify the clinic, distributor, breeder, shelter or rescue that originally received the chip.

Sometimes, getting a “not found” result is just the beginning of the search.

Read our guide to why a microchip may not appear in any database for more tracing options.

Which microchip database does Slovakia use?

Slovakia’s official system is the Centrálny register spoločenských zvierat, usually shortened to CRSZ.

Slovak law requires veterinarians to enter the identification details of microchipped dogs and their owners into CRSZ. The system also stores pet-passport information. You can read the relevant rules in Slov-Lex.

Official Slovak guidance tells owners and prospective buyers that they can verify a dog’s registration using its microchip number through CRSZ.

In practice, the public website has not been reliably available during ChipTrace checks.

For tracing, treat CRSZ as the official record, but do not treat its public website as your only route.

What is SRZ?

You may see the Slovak database listed as SRZ rather than CRSZ.

PetMaxx currently labels the Slovak registry SRZ and links it to crsz.sk.

For an ordinary finder, the important point is that these references lead to the Slovak national registration system.

Is Slovakia in EUROPETNET?

Slovakia is not currently listed as an EUROPETNET member country.

That does not make EUROPETNET useless.

If the animal may have lived elsewhere in Europe, you can still search it for a possible foreign registration.

Just do not rely on EUROPETNET as the main Slovak route.

How does ChipTrace help with Slovak microchips?

Slovakia shows why you should not rely on just one website to trace a microchip.

ChipTrace can identify useful routes, check international databases and use the microchip number itself for country or manufacturer clues.

This becomes especially useful when:

CRSZ is unavailable
PetMaxx cannot complete the Slovak search
the animal has a foreign chip
the number begins with a manufacturer prefix
the pet previously lived abroad
you do not know where to search next

The official Slovak registry remains important even when its public website is inaccessible.

ChipTrace is here to help you keep searching, even if a database is unavailable.

Are microchips required in Slovakia?

Dogs

Yes.

A dog kept in Slovakia must receive a microchip before its first change of ownership and no later than 12 weeks of age.

Only a private veterinarian registered with the Slovak Veterinary Chamber may implant the transponder. The State Veterinary and Food Administration explains these requirements.

The veterinarian must enter the identified dog and its owner into CRSZ within 24 hours of identification.

The vet must also record each rabies vaccination and booster in CRSZ within 24 hours.

Cats

Cats follow different domestic rules.

Slovakia’s compulsory national microchipping requirement specifically applies to dogs. The Slovak dog-identification rules do not include a general requirement for privately owned domestic cats to have a microchip.

However, ChipTrace strongly recommends microchipping and registering pet cats.

A microchip gives a cat permanent identification, but the number becomes much more useful when it leads to current keeper contact details.

That is particularly important in Slovakia because the public CRSZ website is not a tracing route that we recommend relying on by itself.

Cats travelling internationally also need to meet the identification requirements for their journey, and CRSZ can contain pet-passport information.

If your cat has a microchip, make sure you have at least one registration that a finder can realistically use to trace the number back to you.

An additional international registration can provide another useful safety net.

So although microchipping an ordinary pet cat is not generally required by Slovak domestic law, having your cat microchipped and properly registered is very much recommended.

How to register a pet microchip in Slovakia

Registering a dog

A private veterinarian handles the CRSZ registration.

When your dog receives a microchip:

Ask the veterinarian to scan and confirm the complete number.
Check your name and contact information.
Make sure the veterinarian registers the dog in CRSZ.
Keep the dog’s veterinary and identification documents.
Check the registration later if the public CRSZ service is available.

The veterinarian must enter the identification details into CRSZ within 24 hours.

Do not assume that just finding a microchip under the dog’s skin means the registration is complete.

The microchip and the database record are not the same thing.

Registering a cat

Slovakia does not generally require an ordinary privately owned cat to be microchipped.

However, if your cat has a microchip, we strongly recommends making sure the number is connected to current contact details.

Ask a Slovak veterinarian to scan the cat and confirm every digit.

If the cat has or needs an EU pet passport, ask the veterinarian to make sure the passport and microchip information are correctly recorded.

When an authorised Slovak veterinarian issues a pet passport, or is presented with a qualifying passport issued in another EU or EEA country, the passport information must be entered into CRSZ within 24 hours.

Because the public CRSZ website is not reliably available, consider keeping another registration as an additional tracing route as well.

Can I add a global microchip registration?

Yes. A global registration can provide another route back to the owner.

Animal-ID allows pet microchips to be registered in its international database.

This can be particularly useful in Slovakia when:

The public CRSZ website is unavailable
The pet travels outside Slovakia
The animal was first registered in another country
A finder uses an international microchip search
The animal has a foreign or manufacturer-coded chip
A cat needs an additional tracing route

Important: a global registration is an additional safety net.

For dogs, it does not replace compulsory CRSZ registration.

It also does not replace the municipal dog registration where that applies.

For pets with passport information that must be recorded in CRSZ, an Animal-ID registration does not replace that official record either.

For cats, an additional global registration can be especially useful because ordinary domestic cats are not covered by the same compulsory national microchip-registration rule as dogs.

Keep the same contact details in every active registration.

How to check or update a Slovak microchip registration

Dogs

When a dog changes ownership, the previous owner must report the new owner’s details through a private veterinarian within 21 days of the change.

The owner must also report the dog’s death to a veterinarian within 21 days. The State Veterinary and Food Administration explains these registration responsibilities.

The veterinarian then records the relevant information in CRSZ.

If the dog is also registered in another country or international database, update that separately.

Updating CRSZ does not automatically update other systems.

Cats and other pets

If your cat has a CRSZ passport record, ask a Slovak veterinarian to check the microchip and passport details when necessary.

Also check every private, foreign or international database where you registered the chip.

If you use Animal-ID or another additional service, make sure your telephone number, email address and other contact details remain current.

If a pet has more than one active registration, update each one separately.

A correct microchip number with old contact details can still make it difficult for a finder to reach you.

What is the municipal dog register?

Slovakia also has a second dog registration system.

This is not the same as CRSZ.

CRSZ is the national veterinary and microchip register. Municipalities maintain a separate local dog register.

A dog kept continuously in Slovakia for more than 90 days must be entered in the municipal register. The keeper then has 30 days after that 90-day period ends to register the dog with the municipality where it mainly lives.

The rules are set out in Slovak legislation on dog keeping.

The municipal record includes information about the dog and keeper and can include the microchip details. The municipality also issues an identification tag.

You generally must report changes to information held in the municipal register within 30 days.

In summary:

CRSZ = national veterinary and microchip registration.

Municipal register = local dog registration.

A dog may need both.

Buying, adopting or transferring a pet in Slovakia

Before taking a pet home, ask for the microchip number and have the animal scanned whenever possible.

Check that:

the chip can be read
the scanned number matches the documents
any existing registrations can be updated
the passport belongs to the same animal
the contact details will be changed where necessary

Dogs

Slovakia’s State Veterinary and Food Administration specifically advises prospective buyers to obtain the chip number and verify the dog’s CRSZ registration.

If the public CRSZ website isn’t available, ask a veterinarian to check it for you.

Also check that the seller or previous owner will report the ownership change.

The previous owner must report the new owner through a veterinarian within 21 days.

Keep a written purchase, adoption or transfer agreement as well.

Cats

Ask whether the cat has a microchip and where the number is registered.

Have the cat scanned and compare the number with any passport, vaccination record, adoption contract or other documents.

If the cat has a pet passport, ask a Slovak veterinarian to check the identification and passport information.

If the cat has an existing foreign or international registration, make sure the keeper details are changed to you.

If the cat has a microchip but no useful registration, create an additional registration that can link the number to your current contact details.

Even though microchip registration is not generally compulsory for ordinary pet cats, leaving a microchip without a useful keeper record removes much of its value if the cat later goes missing.

What should you do if your pet goes missing?

First, check every microchip registration you use and make sure your contact details are up to date.

Also check ROTZ — Register odchytených a túlavých zvierat, Slovakia’s Register of Captured and Stray Animals.

ROTZ records animals that authorised services have captured. The record can include the animal’s photograph, microchip number and the shelter or quarantine station where the animal is being held.

Members of the public can search the system. The State Veterinary and Food Administration explains how the stray-animal system works.

If your dog goes missing

Ask a Slovak veterinarian to check the CRSZ details and make sure the registered contact information is correct.

Also update any foreign or international registration you use.

If your cat goes missing

Check every database where you registered the microchip.

If your cat has a CRSZ passport record, ask a veterinarian to check it.

If you use Animal-ID or another international registration, make sure your contact details are correct and use any available lost-pet reporting option.

For any missing pet, also contact:

local veterinarians
shelters and rescue organisations
the municipality
local lost-and-found animal groups

Do not share the full microchip number in public.

Keep part of the number private so you can use it to verify someone who claims to have found your pet.

What if you find a stray animal?

Official Slovak guidance tells members of the public to contact the municipality where the animal was found.

The municipality must arrange capture through an authorised person or service.

If someone safely scans the animal first, the microchip can still provide an important route back to the owner.

Moving to Slovakia with a pet

If your pet has a readable foreign microchip, you don’t need to replace it just because you move to Slovakia.

After arrival, ask a Slovak veterinarian to scan it and compare the number with the pet’s passport or other documents.

Moving with a dog

Ask the veterinarian to check whether the dog needs a CRSZ record or an update to an existing one.

Slovak law does not provide a simple universal CRSZ arrival deadline in the sources above for every privately owned adult dog arriving from abroad, so do not assume one.

However, the local municipal register has a clear rule.

If the dog remains continuously in Slovakia for more than 90 days, the keeper must register it with the relevant municipality within the following 30 days.

What happens to a foreign EU pet passport?

If you present an EU or EEA pet passport issued in another country to an authorised Slovak veterinarian, the veterinarian must enter the passport information into CRSZ within 24 hours.

The requirement appears in Slovak veterinary legislation.

This can also create an additional Slovak record linked to the animal’s identification.

Keep your pet’s foreign microchip registration active until you are sure the Slovak details are correct.

Moving with a cat

The municipal dog-registration rules do not apply to cats.

Ask a Slovak veterinarian to scan the cat after arrival and check that the microchip number matches the passport or other documents.

If you present a qualifying EU or EEA pet passport, the veterinarian must enter the passport information into CRSZ.

Even though Slovakia does not generally require ordinary domestic cats to be microchipped, ChipTrace strongly recommends keeping a microchipped cat registered in a system that gives a finder a practical route back to you.

Because the public CRSZ website has not been reliably available, do not depend on that public search alone.

Keep any existing foreign registration active and consider adding an additional international registration such as Animal-ID.

If your cat does not already have a microchip, ask a Slovak veterinarian about having one implanted and then make sure the number is actually registered.

A microchip identifies the animal. The registration is what gives a finder a route back to you.

Travelling with a pet to or from Slovakia

Microchip registration and pet travel rules are related, but they are not the same.

For normal travel within the EU, dogs, cats and ferrets need the required identification, valid rabies vaccination and appropriate travel documentation.

Slovak pet-travel guidance also states that the animal must already have been identified before, or on the same date as, the rabies vaccination used for travel.

Pets entering the EU from countries outside the EU can face additional requirements depending on the country of origin.

Check the official Slovak guidance for entry from non-EU countries.

Our Pet Travel: Microchip Checks Before You Go guide explains the practical checks to make before travelling.

Always check the latest official requirements for your specific trip before you travel.

In short

Slovakia’s official companion-animal register is CRSZ, but we do not recommend relying only on the public CRSZ website for tracing.

For a found microchipped animal, the practical route is:

ChipTrace → PetMaxx → CRSZ if available → Slovak veterinarian → ROTZ where relevant → foreign databases → manufacturer or distributor if necessary.

For dogs, Slovakia also has a separate municipal registration system once the dog has been kept continuously in the country for more than 90 days.

For cats, compulsory domestic microchipping does not generally apply, but a registered microchip can make an enormous difference if the animal goes missing.

Because the public CRSZ route is not consistently available, keeping an additional international registration can provide another useful way back to you.

And remember:

If the CRSZ website is unavailable, it does not mean the microchip is unregistered.

Keep searching.

Useful Slovak microchip links

CRSZ – Centrálny register spoločenských zvierat
Official Slovak companion-animal registration system

PetMaxx
International microchip search that currently lists Slovakia’s SRZ/CRSZ database

ROTZ – Register odchytených a túlavých zvierat
Official information about Slovakia’s captured and stray animal system

Animal-ID
Create an additional international microchip registration

State Veterinary and Food Administration of the Slovak Republic
Official information about dog microchipping and registration

Slov-Lex
Official Slovak veterinary legislation covering identification and CRSZ