The Transport of Animals (Cleansing and Disinfection) (Scotland) Regulations 2005 ( S.S.I. 2005/653) set out the cleansing and disinfection requirements for transporting animals.
Changes from the 2000 Regulations ( S.S.I. 2000/167) make it a legal obligation to cleanse wheels, wheel arches and mudguards when cleansing and disinfection is required. There is no exemption from full cleansing and disinfection practices for vehicles moving horses.
A guidance document is available.