The Respiratory Function Grading Scheme assesses a number of breeds and dog types, generally those with a brachycephalic face structure, for a breathing problem known as BOAS (Brachycephalic Obstructive Airway Syndrome).The program advises owners if their dog is affected by BOAS and gives guidance to breeders on how to lower the risk of producing affected puppies. A selection of regionally approved assessors (vets trained especially in BOAS) have been appointed to carry out respiratory function grading on dogs of these breeds.