Fortera is correct here. The OSM definitions of roads are completely different/separate from the Government's own classification scheme. This has always been the case.

**Road hierarchy must be based on the OSM Wiki definitions in OSM and not that of any outside source. OSM does not exist to replicate any Government database or information. OSM records the true state of the environment as it exists on the ground at that moment. It is up to your own best interpretation of the existing environment in accordance with the mapping standards that are set forth in the wiki.**