@Keen2no So, say for example your son (I assume that’s who you mean) takes HL English and makes a 6, which makes him eligible at College X for credit for English 101 (3 credit hours). This means his college transcript will reflect that he has credit for English 101 as if he had taken the class. If College X requires its students to take English 101 as a core class, this means he doesn’t take it. It doesn’t have anything to do with “writing certain exams”. Since it’s a “transfer credit” of sorts, it won’t affect his GPA either way.