PCN Code 13: Reserved for TfL use (Low Emission Zone)
This is the official national contravention code printed on your notice. Here's what it means, and whether there's a common ground worth checking.
Not a law firm. General information about the code itself, not legal advice about your case — upload your own notice for facts that actually apply to you.
“Reserved for TfL use (Low Emission Zone)”
Code 13 is an on-street contravention from London Councils' national PATROL contravention code list, the standard list used on council and TfL penalty notices across England and Wales, not just London.
It depends on the facts of your case
Code 13 doesn't point to one obvious ground the way some codes do — the right one (signage, a procedural error by the council, incorrect notice details, or simply that the contravention didn't happen) depends on what actually happened where you parked, not on the code by itself.
Check your notice and pick your groundParked in an electric vehicles' charging place during restricted hours without charging
Code 16Parked in a permit space or zone without a valid virtual permit or clearly displaying a valid physical permit where required
Code 17Reserved for road user charging use
Code 18Using a vehicle in a parking place in connection with the sale or offering or exposing for sale of goods when prohibited
Not sure which code applies to you? See the full list.
Official source for this code
London Councils' national PCN Contravention Code List (PATROL), the standard reference used on penalty notices across England and Wales.
Last reviewed: 30 August 2026
OverturnFine is an independent document-preparation service. It is not a law firm and does not provide legal advice, and it is not affiliated with any council, TfL, or UK government body.
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