I had my Civic Hybrid for a month before I realized the stop-start feature was gone.
(my 22 SI had it..but was defeatable)
Then I read this in this months Car and Driver....
"Since 2012, automakers received emissions credits for including stop-start tech in their cars. But no more. The EPA recently announced that it will no longer grant credits to automakers for implementing stop-start, which it called 'almost universally hated'.
The stop-start incentives were part of a larger "off-cycle" credits program tied to using new fuel saving tech, and the whole shebang has been axed"
.