Do not be complacent about these sorts of thing guys. Draw a line in the sand and push back - hard. If you don't you will end up with a bunch of silly environmental air quality driven initiatives that are supposed to make life better but their science and math on closer scrutiny will not hold up and you will loose your hobbies and freedoms.
California and the US equivalent of your EPA (with the same initials) left unchecked would have us riding bicycles with catalytic converters to filter our farts. The guys who have helped make a difference over here are the SEMA guys if I remember correctly. You might want to contact them to get some thoughts on how they initially approached the issue and modify it to work in your political environment.
Here is a Australian newspaper article form another post on the site here that should wave big red flags for you guys. Click here =>
Herald Sun.
The brain dead people behind these sorts of atrocities are the far left extremists who want everyone to be equally unhappy. They see some sort of egalitarian utopia that is patently impossible to create as has been evidenced throughout history. That doesn't stop them though, they will try to take away anything that might provide you escape or emotional repair in the name of clean air and other environmental BS.
Get organized, push back hard. Use their own rules against them on their own ground and never, never let up or back down. This is a struggle for as long as any of us will be alive and we must fight it continuously. We must also bring new blood to the fight because as we age and become less capable to continue the fight, at the level it must be fought, there has to be new blood behind us that we can pass the torch to.
Ed