How many types of Chartreux pedigrees are there?

There is one type of Chartreux pedigree established by the Cat Fanciers’ Association (CFA). While Chartreux cats can come from various lines within the pedigree, they all adhere to a formal breed standard to produce consistent litters. Selective breeding programs began in France in the 1920s and followed in the U.S. beginning in 1970 from imported French Chartreux cats.