The following information applies equally to Congestion Charge enforcement and Low Emission Zone enforcement.
The legal grounds under which you can appeal against your Congestion Charge Penalty Charge Notice or Low Emission Zone Penalty Charge Notice are set out below:
(a) that the recipient -
(i) never was the registered keeper in relation to the vehicle in question; or
(ii) had ceased to be the person liable before the date on which the vehicle was used or kept on a road in a charging area; or
(iii) became the person liable after that date;
(b) that the charge payable for the use or keeping of the vehicle on a road on the occasion in question was paid at the time and in the manner required by the charging scheme;
(c) that no penalty charge is payable under the charging scheme;
(d) that the vehicle had been used or kept, or permitted to be used or kept on a road by a person who was in control of the vehicle without the consent of the registered keeper;
(e) that the penalty charge exceeded the amount applicable in the circumstances of the case;
(f) that the recipient is a vehicle hire-firm and;
(i) the vehicle in question was at the material time hired from that firm under a hiring agreement; and
(ii) the person hiring it had signed a statement of liability acknowledging his liability in respect of any penalty charge notice imposed in relation to the vehicle during the currency of the hiring agreement.