Combines Sisu topic below along w write your congressman

Agree on the counter productive comment. Its a wonder our economy is as strong as it is with these types of mandates. As for the next tier. Sounds like your right again. I read an article where a John Deere engineer said the next tier will require the exhaust leaving the engine be cleaner than the air is currently in New York City. Next tier isn't that far away either, something 2014 rightIJ

"they would have some celebrity marching on capitol hill..." I hereby nominate tbran. All in favor, say Aye!