BSPA - Clear cover, blue front page
Connemara - Green
Fell pony ones - Black
Horse Passport Agency - Clear Cover
Irish Horse Board - Green
Luistano - Navy blue
NF - Bright pink
NF - Green
NF - Pink
PetId - Blue
Pleasure Horse Society - Red
SHB (gb) full stud book - Green
Weatherbys (TB) - Blue = Breeding Stud (dna parentage on both sides)
Weatherbys (TB) - Green = Racing Reg.
Weatherbys - Purple (no parentage known) (parentage tested by blood)
-- Weatherby passports should say inside what type of passport it is
WPCS - Green
- Welsh Sec B - Green
A green passport means the stallion is approved by the irish sport horse studbook, a blue book means it's on the list of stallions but not 100% approved, i.e. his wind is wrong or never passed his x-rays etc and is classed as a secton one (S1) stallion, a white book means there is no breeding recorded, hope this is of some help !!!
Burgundy - Dutch and also German