There are new EPA requirements for engines that take effect in Jan 2007.
Many manufacturers have already began to manufacturer these models in 2006, as the lead time is pretty long for a new gen now a days.
The regulation is for engines manufactured date, not sold date.
They do not effect standby engines unless they operate outside of a standby role, like peak shaving or load curtailment for the utility.
[This message has been edited by Ron (edited 12-05-2006).]
