Yes, when you exchange/sell non-certificated aircraft or aircraft maintained as public aircraft, you must ensure that the exchange/sale offerings contain the following statement:
"Warning to purchasers/recipients. The aircraft you are purchasing or receiving in an exchange may not be in compliance with applicable Federal Aviation Administration (FAA) requirements. You are solely responsible for bringing the aircraft into compliance with 14 CFR Chapter I, or other applicable standards, by obtaining all necessary FAA inspections or modifications.
The purchaser/recipient agrees that the Government shall not be held liable for personal injuries to, disabilities of, or death of the purchaser/recipient, the purchaser's/recipient's employees, or to any other persons arising from or incident to the purchase of this aircraft, its use, or disposition. You will hold the Government harmless from any or all debts, liabilities, judgments, costs, demands, suits, actions, or claims of any nature arising from or incident to the purchase, use, or resale of this item. This aircraft may have been operated outside the limitations of 14 CFR Chapter I, and some type of inspection may be needed to determine its airworthiness prior to being flown. You should be aware of the items below prior to operating this aircraft.
41 C.F.R. §102-33.285