An official website of the United States government
1 - Very Easy
2 - Easy
3 - Difficult
4 - Very Difficult
1 - As soon as a purchase was made during the day
2 - At the end of the day when the purchase was made
3 - A day or so after a purchase was made
4 - At the end of the week
1 - 30 minutes or less
2 - 31 - 60 minutes
3 - 61 - 90 minutes (1 1/2 hours)
4 - 91 minutes or more
Last Modified Date: April 18, 2008