from what i remember of my driving lessons the car should be no further than 18 inches away from the curb when parked. any further and i was asked to call a taxi to reach the pavement!
No closer than 10 feet
When you do parallel parking you must align the wheels strictly parallel to the curb, and then shut the engine off.
18 inches
Your vehicle should be no more than 18 inches from the curb.
12 or less inches
yes
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.
I think that would depend on the county and country in question. In the UK, "next to is next to" and you get a ticket.
1 ft. (30cm.)
Maximum 18 inches in most areas
Within no more than 30 centimeters.
MARYLAND DRIVER'S HANDBOOK Parallel Parking When parking on a two-way roadway, you must park parallel to and within 12 inches of the curb or the edge of the roadway. When you take the test for your driver's license, you will have to show the examiner that you can park in a parallel parking space 6 feet wide and 25 feet long. This is a timed exercise.