Do scores need to be reported?

<p>I plan on taking an SAT Subject test in November. However, if I get a bad feeling about it, I plan on canceling it before I get my score. If i do choose to receive my score, am I obligated to report my score? I understand that some colleges want all scores, but is it just based on the "honor" system or can they actually track your scores?</p>

<p>Also, can you answer this for the AP exams as well?</p>

<p>bump 10char</p>