ubersonic said “Because the fee is waived.”
It’s waived as the tax is not for using the road. The tax is for causing bad emissions. If your emissions drop below a set rate you don’t pay tax. The higher the emissions the higher the tax. It’s not a fee or an argument for rights to use the road.
/sigh, no its to use the road, I have pointed this out already, emissions is just what they use to grade the tax levels now (a decade ago it was based on engine size but they realised emissions would be more lucrative and with people jumping on the green band wagon they could get away with it easily).