<p>20 credits is the maximum number. More than 20 would require special permission.
Before the first day of classes, engineering majors can register for up to 18 credits and other majors can register for up to 16 credits. After the first day of classes, anyone can register for up to 20. With that said, I wouldn’t take more than 18 unless you REALLY REALLY want to graduate early or need to.
More info: [University</a> of Maryland | Testudo | Schedule of Classes | Early Registration](<a href=“http://www.testudo.umd.edu/soc/earlyreg.html]University”>http://www.testudo.umd.edu/soc/earlyreg.html)</p>