You should park your car less than six inches away from the curb.
From the Calfornia DMV web page on parking: When you park alongside a curb on a level street, the front and back wheels must be parallel and within 18 inches of the curb. Park parallel to the street if there is no curb.
Within 18 inches.
Here in California it's 18 inches.
Normally you must be no more than 18"from the curb. You can find the exact figure in your states drivers manual.
the maxium is 6 inches but it has been debated by many if it is more
The car did not park on the curb
you may not park next to a curb that is painted red.
Towards the curb.
Under laws bought in in 2009, you may be fined you if you park more than 19 inches from the kerb but this is only enforced by some local authorities.
18 inches from the curb.
18 inches