Stage 1 — Informal challenge (the first 14 days)
This stage is for a council ticket fixed to your car or handed to you. If your council PCN came by post — for example from a camera — the steps can be different: it may already be the formal notice, with no separate informal stage, so follow the steps and deadlines printed on it. For a ticket fixed to your car, the discount period is 14 days. If you challenge within it and lose, the Government's statutory guidance for England recommends the council consider re-offering the 50% discount for a further 14 days — a recommendation, not a guarantee. Write to the council explaining why the ticket should be cancelled — for example that the contravention did not occur, the signs or markings were inadequate, the allegation does not match what happened, or the council made a procedural error — and mention any mitigating circumstances. If the council accepts it, it simply cancels the PCN.
Stage 2 — Formal representations (after the Notice to Owner)
If the informal challenge is refused, the council issues a Notice to Owner (NTO) within 6 months. You then have 28 days to make formal representations to the council. At this stage your representations can rely on the grounds set out in the regulations — for example that the contravention did not occur, that you were not the owner at the time, or that there was a procedural impropriety — or, whether or not any of those apply, on compelling reasons why the council should cancel the penalty in your circumstances.
Stage 3 — Tribunal (independent and free)
If the council refuses your formal representations, you can appeal to the Traffic Penalty Tribunal (England outside London) or London Tribunals (London boroughs and TfL). Tribunal is free, run by independent adjudicators, and you do not need a solicitor. If you win at tribunal the council must cancel the PCN — no further escalation.