Sending CLEP score to institutions

[Blue]

hello everyone! hope xmas preparations have been going well! =]

i'm a little confused about the sending scores procedure for CLEP exams. does it cost extra to send the scores at the time of my exam or is it included in the exam fee? and if i want to now send past scores that haven't been sent anywhere before, does it cost $20, or is the $20 charged if the score has been sent before?

hope my questions aren't too confusing >.<

thanks! =]