Students can register for classes online if they are currently enrolled or previously enrolled students of the Community College of Philadelphia and are in good academic standing with the school. All other students have to register at Enrollment Central on the school's Main Campus or at the school's Regional Centers.
All students must register and pay for their classes before attendance and cannot sit in on classes without having registered. They can also only attend the specific sections of courses according to their registration. Students who have earned a certain number of credits can partake in the Priority Web Registration program, which enables them to register before the in-person registration process begins. The Web Registration Guide is available on the Community College of Philadelphia website for those seeking early enrollment.
As of 2015, active military members and student veterans can also utilize the priority registration period. The college's website posts dates for priority registration before the beginning of each semester, and it also outlines the criteria that qualifies a student as a veteran.
Students can leave the courses in which they are registered up to the 11th week of the regular term without penalty, whereas penalties may apply to students who withdraw after the established time period.