Papers that prove a Cardigan, not just a corgi
Start with registration or litter paperwork and a multi-generation ancestry record. For this breed the ancestry record does a specific job: it confirms your puppy comes from Cardigan Welsh Corgi lines, a separate breed from the Pembroke, with the tail, build, and colour range that go with it. Names of the sire and dam should match across the registration, ancestry record, contract, and health booklet.
Add microchip paperwork or the recorded chip number and registry, the breeder's full contact details, and a signed contract with receipt. Cardigans are the less common corgi, so a breeder who documents the litter carefully and stays in touch is a genuine asset as the puppy grows.
Contract points to read before the balance is paid
The contract should state the health guarantee and what it covers, the process if a hereditary condition is diagnosed, whether the puppy is placed as a companion or with breeding rights, and the breeder's return clause if you cannot keep the dog. Many Cardigan breeders also discuss the timing of neutering or spaying in relation to a long-backed dog's growth; if that advice is given, have it in the paperwork so you can weigh it with your own vet rather than recalling it loosely.
Record the food and feeding schedule the puppy leaves on and the agreed handover arrangements. Keep the signed contract with the receipt as proof of ownership and of the terms both sides accepted.
The litter's veterinary record
Ask for the health record completed by the veterinary practice that examined the puppies. It should show each examination, vaccinations and their dates, worming treatments and dates, and the vet's notes on heart, eyes, bite, movement, and general condition. If any puppy in the litter was treated or monitored for something, a written note beats a verbal aside, because your vet will base first-visit decisions on this history.
Note also any breeder observations about your puppy specifically: appetite during weaning, energy compared with littermates, and how confidently he handled new experiences. Those details help your vet and any trainer read the puppy in front of them.
Parent screening for hips, eyes, and inherited conditions
Request copies of both parents' hip evaluation and recent specialist eye examination, and any degenerative myelopathy or other genetic test results the breeder has for their lines. Check that each certificate names the same dogs as the ancestry record, and ask what the results mean for the litter in plain terms if the grading language is unfamiliar.
Ask, too, about back problems, eye disease, and longevity in close relatives. A Cardigan's long spine makes family history more than a curiosity, and a breeder's honest account, written into your notes with the date, becomes part of the record your vet can use throughout the dog's life.
Breeder guidance on handling and socialisation
Collect written notes on how the litter was raised and socialised, what the puppies have heard and handled, and any individual traits the breeder noticed. Ask specifically for their handling guidance for a long-backed puppy: supporting both chest and hindquarters when lifting, limiting repetitive stair climbing and jumping from height while growing, and the exercise pattern they recommend. Get it in writing so everyone in your household handles him the same way from day one.
Bring the contract, registration, screening copies, and vet record to your first appointment, and store the complete Cardigan set in KinsLe's Pet Passport so his breeder paperwork, health history, and future records stay together as one portable packet.