It is not legal to change the grades on your High School transcripts, unless you are the teacher or administrator who made the mistake. It is advisable to talk with your principal or vice principal and request for the changes to be done on your transcript.
Okay. I know what's going on and why you're having trouble getting a straight answer. IT IS AGAINST FEDERAL LAW FOR ANYONE TO BE IDENTIFIED AS BEING IN A SPECIAL ED PROGRAM. This is to protect the student from being "labeled" as a sped student so they can have the opportunities others have SO WHEN THIS LAW WAS PASSED, they had to go into the school transcript and remove, by the NEW LAWS, any proof ON THE TRANSCRIPT ONLY, that they were in spec Ed. (I am a special education teacher). SO, they had to mark out any spec Ed classes they took and make it look like they were regular classes. They, BY FEDERAL LAW, had to remove ALL FAILING GRADES, since he was in Special Education, and they had to remove ANY sign that he was even TESTED for special education at all. By law, WE CAN'T FAIL a student who has tested special education in that area. For example, if they tested special Ed in reading and math, we can't fail the student in reading and math because supposedly, it's not their fault they failed. There IS A RECORD of his spec Ed files, See comment for where these files are.