What does 'motorcycle back household' mean?

[MacLuna]

Back household refers to a local resident who professionally provides their ID card for a fee to non-locals for purchasing vehicles through this method. Below is extended information: 1. Introduction to back household vehicles: A back household vehicle is one that cannot be transferred to a new owner. It is a completely normal vehicle with all possible documentation complete, including annual inspections and insurance, but it simply cannot be transferred. 2. Risks of not transferring ownership: Vehicles that are not transferred pose risks to both buyers and sellers. If the vehicle is involved in a major accident, violation, or illegal activity, the seller could be implicated. The buyer only obtains usage rights, not ownership rights. National regulations stipulate that vehicle ownership transfers must be registered and processed at the vehicle management office.