Pennsylvania Veterinary Laboratory, operational since 1996, specializes in gross and microscopic pathology services. The laboratory conducts tests in the areas of microbiology, parasitology, mycotoxicology and serology. Pennsylvania Veterinary Laboratory is a part of the Pennsylvania Animal Diagnostic Laboratory System, which is also known as PADLS and was established in 1991. The Pennsylvania Animal Diagnostic Laboratory System offers diagnostic assistance services for veterinary doctors. The organization works to identify and prevent diseases. The Pennsylvania Animal Diagnostic Laboratory System maintains a field investigation team and online information on various diseases. In addition, the system operates Animal Diagnostic Laboratory and New Bolton Center.