<p>My school has almost every AP class and IB classes too. You can take AP US Gov in 10th grade (US Gov is a requirement to graduate) or now they’ve started letting people taking US Gov in 9th grade and APUSH as a sophomore. Other then that, you can do what you want junior ad senior year. The only exception is if you’re in a high enough level to take A
P earlier (i.e precalc in 9th grade, AP Calc sophomore year or AP foreign language as a 10th grader). AP Lang is sometimes allowed for sophomores who are super strong in English though. My friend did get an exception and took honors US in 9th grade and then both APUSH and AP US Gov as a sophomore.</p>