To apply for the ULEZ scrappage scheme you’ll need evidence that you own the vehicle in question, including the V5C logbook and a valid insurance document. You can submit photos, scans or screenshots of the relevant information or documents.
If you’re applying for a Wheelchair Accessible Vehicle, you’ll need extra information, including a photo of the rear of the car that shows the number plate, an image of the wheelchair-access conversion and an image of the wheelchair securing system, or images of the swivel seat (one facing forwards, one sideways) or images of the hoist system. If the vehicle is adapted to be driven by a disabled person, you’ll need shots of the driving area showing the accelerator ring attached to the steering wheel, and a wider shot showing context.
You’ll also need a London road user charging (RUC) account. Then head to the Transport for London website. The full instructions are listed there, but in summary, you’ll need to send evidence that you and your vehicle qualify for the scheme and then wait for approval.