NAN cards are also sought after. These pink and green cards allow a particular horse to enter the North American Nationals (NAN), a yearly show organized by the North American Model Horse Show Association (NAMHSA). The show and the qualification cards carry a lot of prestige in the hobby world - a model which is "NAN qualified" goes up in value. In the UK the Model Equine Championships (MECs) have a similar concept to NAN and have been running since 1998.