Currently, a van that is owned by a person who uses a wheelchair or by a person who transports a resident of his or her household who uses a wheelchair and for which registration plates are issued under Section 803d of the Code, must be assessed at the rate of 50% of the vehicle registration tax. The bill would refer to a "vehicle equipped with a wheelchair lift system", rather than a "van". The owner of a vehicle that was registered at the 50% rate on the bill's effective date could continue to register the vehicle at the 50% rate regardless of whether it had a wheelchair lift system if the vehicle continued to be owned by the same person who owned it on the bill's effective date, the vehicle continued to be owned by a person who used a wheelchair or by a person who transported a household resident who used a wheelchair, and the vehicle had registration plates issued pursuant to Section 803d. (Section 803d provides for the issuance of special registration plates to disabled people and to the owners of vehicles used to transport disabled people residing at the same address.)