What Proof Normally Looks Like
Most rabbit boarders want to see evidence, not just hear an assurance. The standard proof is your rabbit's vaccination card, stamped or signed by the vet who gave the vaccination, or a printed or digital record from the practice showing the rabbit's name, the vaccination given, and the date it was administered. Boarders ask for this because they house rabbits from many households side by side, and one unprotected guest is a risk to every rabbit in the building.
Expect to show it earlier than you might assume. Many facilities request proof when you book, or in the days before the stay, rather than at the door on drop-off day, because a problem discovered at the door leaves you with a rabbit, a suitcase, and no boarding. Ask at booking exactly what they accept, since some boarders are happy with a clear photo of the card while others want the original or a vet's printout.
Which Cover Boarders Are Checking For
Boarders are checking that your rabbit's protection is current against the serious infectious diseases rabbits are routinely vaccinated against in your region. The exact vaccination schedule differs between countries, and combination products differ too, so the meaningful question to your boarder is not the name of a product but whether your rabbit's record satisfies their admission rules.
Your own vet is the right source for that judgement. If you are unsure whether your rabbit is up to date, a quick call to the practice settles it, and the practice can also tell you how long a newly given vaccination needs before it counts as effective cover for boarding purposes. That timing matters: a vaccination given days before a stay may not satisfy a boarder who requires protection to be established before guests mix.
Timing a Lapsed Record Around a Holiday
Discovering a lapsed record is the common failure, and it fails trips because it is found too late. Check your rabbit's vaccination status when you book the boarding, not when you pack for it, so there is time to visit the vet and for the cover to count. If the record is missing altogether rather than lapsed, your vet can usually reconstruct it from the practice system and issue a replacement card or printout.
Tell the boarder early if anything is borderline. A rabbit whose vaccination falls due during the stay, or whose cover was renewed very recently, may be perfectly acceptable to one facility and not to another, and a conversation at booking is painless compared with a refusal at drop-off.
Keep the Record Where the Rabbit Goes
Treat the vaccination proof as part of the rabbit's travel kit, alongside his food and bedding notes. The original card or printout goes to the boarder, and a copy stays with you, so a lost document during the stay does not strand you at collection time arguing about a rabbit you own.
Holding the record in a KinsLe Pet Passport keeps your rabbit's vaccination history in the same portable packet as his vet details and care notes, so when a boarder asks for proof you produce it in seconds instead of searching drawers the night before a holiday.