(As taken from the BVA procedure notes)
Dogs must be at least 1 year old for their X-rays to be submitted, and have a microchip or tattoo.
The following views are required for each elbow joint for grading under the scheme:
Two mediolateral views:
1 - An extended lateral (110°)
2 - A flexed lateral (45°)
Centre over the condyle of the humerus; collimate to show not more than the lower 1/3rd of the humerus and the upper 1/3 of the forearm.
The following MUST be radiographed on the film or digital image at the time of exposure or by light marker onto a film prior to processing:
A - BOTH the Kennel Club Registration number (from the Kennel Club Certificate - no other form of identification for a dog registered with the KC is accepted) AND the microchip or tattoo number
B - the date of the radiograph
C - left and/ or right markers
For further information please refer to the BVA website