The current special habitats classification project started in 1994 as a non-forested habitat mapping and classification project. Fish and Wildlife staff developed a non-forest habitat classification and coding system as an adjunct to a forest classification and growth model system developed by Jim Arnie (at a time when commercial logging was expected to continue in the CRMW). The Arnie classification system used a nine-digit code, with the first four digits used to classify forested areas (called Species I codes) and the next five used for non-forested areas (Species II codes). Of the five non-forested classification digits, four described the area within the non-forested polygon, while the final digit identified the source of the species II code (photo interpretation, field checked, etc.).