Ive taken allsort on the train
Transporting animals by train
Passengers may take with them, free of charge and subject to conditions below, dogs, cats and other small animals (maximum two per passenger) provided they do not endanger or inconvenience passengers or staff.
Dogs must be kept on a lead at all times unless contained in a basket.
Dogs without leads, cats, birds and small animals must be carried in an enclosed basket, cage or pet carrier. It must be rigid and not open (to prevent escape) and the animal able to stand and lie down in comfort.
Animals and containers must not occupy seats, otherwise a charge will be made.
Animals are not allowed in restaurant cars except for blind persons' guide dogs or deaf persons' assistance dogs, which may be allowed into the restaurant car at the Steward's discretion. However, every effort is made to serve meals at blind or deaf persons' seats within the normal seated accommodation.
Blind persons' guide dogs or deaf persons' assistance dogs are allowed on Sleeper services provided the blind or deaf person and dog are booked into single-cabin accommodation. The guide or assistance dog is conveyed free and no cleaning charge applied.
First ScotRail allows dogs to accompany able-bodied passengers in Sleeper services subject to a charge for a heavy duty clean, and the booking must be either Standard Class with two people travelling together, otherwise a Solo supplement is payable for exclusive use of a twin-berth cabin.
Booking for all dogs travelling in Sleepers should be made at least 48 hours in advance.
Byelaw 16 allows the train company to refuse carriage or entry to any animal. If a customer objects to the presence of an animal, the owner must move it to another part of the train or put it in a suitable container in the guard's van/luggage van where available.
When dogs are carried in the guard's van/luggage van (other than those in a container) they must be secured with collar and chain and properly muzzled.
taken from
http://www.nationalrail.co.uk/passenger_services/luggage_animals.html