NRVIAFrom their website “The National Recreational Vehicle Inspectors Association, Inc. is an association that tests and certifies RV Inspectors in addition to connecting Inspectors with clients that need inspections done usually prior to the purchase or sale of an RV.”
I used one of their certified inspectors to inspect a diesel Class A coach I was interested in buying from a private seller in Colorado. (I am in Western Washington State.) The inspection was very thorough and the report detailed. I also had the inspector take samples of the coolant, oil, and transmission fluid for and submit them for lab analysis.
They do not value the RV, only inspect and recommend items for correction or further inspection.