If the ground level ozone is bad for us and is created by emissions and can really effect children and the elderly. The requirement should stand. We have to start paying attention to immediate threats to our health and safety. This is something we should be educating people on without delay. Cars lawn mowers and more contribute to this especially on high heat days. No one should wait for government on this--we all need to do our part. And especially these laws need to be addressed as severely as the cigarette smoking laws regarding second hand smoke. No sanctuary on this.