I believe there are so many people unaware of this pending requirement if you use the following link you can enter the registration number of your vehicle and check to see if your vehicle will fail https://tfl.gov.uk/modes/driving/check-your-vehicle-35896?intcmp=35896 what about all the boats on the river Thames are these going to become affected by this requirement and the amount of oil or fuel residue that floats on the top of my pond from aircraft that fly above my house it?s quite unbelievable this can?t be healthy but as always it?s the motorist that has to pay