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<p>Who is “they”?</p>
<p>The Math Department web page linked above suggests that they are only confident that students who scored a 5 on the AP calculus test should move ahead.</p>
<p>The College of Engineering recommends that students considering skipping Math 1A or 1B check their knowledge on old final exam problems before deciding:
[Choosing</a> an Appropriate First Math Course — UC Berkeley College of Engineering](<a href=“http://coe.berkeley.edu/students/current-undergraduates/new-students/choosing-an-appropriate-first-math-course.html]Choosing”>http://coe.berkeley.edu/students/current-undergraduates/new-students/choosing-an-appropriate-first-math-course.html)</p>
<p>On the other hand, student advisers at CalSO seem to recommend retaking AP credit (both from what I remember many years ago and what some have reported recently).</p>