If the amount of purchase price indicated on a non-dealer bill of sale is less than the average trade-in value as listed in the most recent N.A.D.A. Guide, the document fee is to be assessed on the current average trade-in value as listed in the N.A.D.A. Guide. However, the owner may obtain an appraisal from a Delaware licensed vehicle dealer and such appraisal may also be considered in determining vehicle document fee.
2 Del. Admin. Code § 2266-8.0