Tyre waste that you collect from your customers is your responsibility. You must ensure that you only use licensed collectors to remove your waste. Your responsibility does not end there. Tyre retailers are responsible for the waste tyres there business generates, until they are taken out of the waste stream. Your duty of care for your businesses waste is from cradle to grave. This means that you must be sure that the waste collector you use is recycling your waste tyres, or taking them to a tyre recycler who will remove the tyres from the waste stream.
When you are getting your tyres changed in a tyre outlet check that they are looking after your end of life tyres in an eco-friendly manner. Tyre outlets are required to comply with the Waste Tyre Regulations. Ask the tyre outlet for a copy of their compliance letter.