Yes, car window tinting is legal in Rochdale, as it is in the United Kingdom. However, there are specific regulations regarding the darkness or VLT (Visible Light Transmission) percentage that must be adhered to. For the front side windows, the legal limit is 70% VLT, which means that at least 70% of visible light must pass through the tint. Rear windows and the rear windscreen can have a lower VLT, often allowing for darker tints. It's essential to comply with these regulations to avoid legal issues while enjoying the benefits of car window tinting in Rochdale.