The thread "EPA seeks to prohibit race cars" down in the lounge started back in 2016 became a good place for links to reporting on all the pending ban talk on the internal combustion engine back when it was initially just the federal Government pushing for it through the EPA domestically.
Here is an Interesting article originally posted on page 1 of that thread that was written way back in 2009:
https://www.motorists.org/blog/will-...lly-be-banned/