Would this be considered acceptable for the 6" step up?
Small entry area between garage entry door to kitchen.
David, what exactly is the question? I see three risers in the picture. 
As opposed to what? An elevator? ;-)
Most areas of the Country do not have any requirement for a “Step Up” between the House and the Garage… 
I thought a 6" curb (step up was required at the garage entry door) for gas vapors.
My question was based on the entry from the garage door that had about a 1 inch curb then went through an entrance way, up the steps to the kitchen.
I was just curious if there was no entrance way and the door with the 1 inch curb went straight to the living area would this be an issue.
I see walk out stairs from basements or splits all the time and obviously there is no 6" curb.
David, in this area, some jurisdictions will require a 4" step up, but most everywhere, it is not required.
My home is a tri-plex and my garage is flush with my Rec. room on the way in.
All depends on the jurisdiction.
the garage floor is supposed to slope down towards the garage door carrying any vapors heavier than air away.