Class A Verses Class B in Rat Terriers
Identifying, Measuring and Labeling

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Let me start by saying that there are as many standards and opinions on what is a Class B verses a Class A as there are registeries and Rat Terrier Clubs so I will limit my version to what is acceptable through "American Canine Registry" unless otherwise stated.
  • A well defined Class "A" or "B" should be easily identifiable without the use of a tape measure.
  • UNFORTUNATELY this is not always possible so a measurement must be taken.

  • Type B's are 2 to 3.5 inches LONGER than they are tall measured from the ground to the top point of their withers and from the crease of their neck to the crease of their tail joint.
  • Better known as TEDDY ROOSEVELT TERRIERS.

  • Type A's should be less than 2 inches in length as height. Basically an "A" should be SQUARE BODIED.
  • A Type A should have suffecient leg length that it is not misconstrued for a type "B" but must be no more than 2 inches longer than it is tall.
  • ALL "A"s are registered as "Rat Terrier".

  • CLASS B's can be labeled in several ways depending on which registry that you use and how YOU choose to register it. They are ALL Rat Terriers but some registries break them down into TYPES and have different names attached to them.
    ..........UKC has Rat Terriers for the "A" type and Teddy Roosevelt Terrier for the "B" type but it should be noted that the breeder is responsible for getting it measured and added into the Teddy Roosevelt classification and once this is done then there is NO going back. UKC DOES NOT allow the crossing of the TYPES for registerable offspring.
    ..........UKCI has a verification program where they are ALL registered as Rat Terriers but their A verses B type can be placed on the permanent papers.
    ..........CKC will register them as either classification of Teddy Roosevelt or Rat Terrier depending on how you initially registered the parents. They will not allow the crossing of the types though for future offspring papers.
    ..........ACR registers them as either classification of Teddy Roosevelt or Rat Terrier depending on the papers that you send in for dual registration. They do not allow the crossing of those that are Teddy Roosevelt to Rat Terrier.
    If one is registered as Rat Terrier then you can have it notated through proper verification the TYPE, i.e. Class A - Class B, on the papers and while ACR will allow the crossing of the two TYPES they highly discourages the crossing of the two types. All dogs shown through ACR sponsored shows are required to be measured for breed standard requirements in height verses length and weight prior to being judged. Any found to be of DISQUALIFYING BREED STANDARD are not allowed to be shown.