(EU) member countries' herd books, is controlled by EU legislation. Full French is a term used by the French Limousin breeders' association (known in France as Herd Book Limousin, abbreviated to HBL) to describe cattle that comply with: Bred by French active member-associates of the HBL: The strictly enforced rules of the HBL require breeders to conduct on-farm performance testing of their animals and to have selected animals independently tested by approved official bodies. Independently inspected and certified to be Full French according to the Breed Standard. Cattle excluded from Full French certification include those imported into France, cattle that are polled (in French sans corne), and cattle that have undesirable double muscling genes (in French gene culard) inherited from non-Limousin base animals. A less pure form of Limousin is bred up (also known as graded up) from a base animal over a defined number of generations. A parent of each generation's progeny must be registered as a Limousin in the respective country's herd book. In the US, Canada, Australia, and New Zealand, a graded up Limousin, after three generations for females and four generations for males, is known (confusingly with the legal European definition) as purebred, which is then eligible for recording in the respective countries' herd books alongside Fullblood and French Pure Limousins. Unlike the US, Canada, Australia, and New Zealand, which allow both purebred and Full French bulls and dams to be used for grading up, in Britain, grading up can only occur using Full French bulls. British graded up females when they reach fourth generation from a non-Limousin base cow can then be registered as Limousins in the British Limousin Pedigree Register. The British Limousin Pedigree Register is separate from the British Limousin Herd Book, which is reserved for animals that have complete Full French ancestry. Evolution of Herd Book Prior to July 2007 The herd-book was destroyed in the Second World War. When the French Government decided to merge the Limousin breed into the new Blonde d'Aquitaine breed in the 1960s, which was fiercely opposed by French Limousin breeders, the impetus to re-establish the herd-book was provided. Inspectors were appointed to identify "true to type" Limousins from the Limousin region. These were admitted to the new herd-book as foundation animals (in French titre initial, abbreviated to T.I.). Following its re-establishment, the Herd Book was opened from time to time for the admission of T.I. females