Yo can find the date and time you can enroll in classes by looking at notifications in the message center on your MyRed account. Did you know that you can also find holds and messages there as well? If you have a hold on your account you can't enroll until it is lifted. Clicking on the hold will tell you exactly what the hold is and how you can get it lifted/cleared. Some holds are academic, some are financial, and some are placed due to missing documents, such as transcripts or immunization records.
Be sure to check the message center on MyRed frequently so you don't miss out on information (such as dates and deadlines, holds, messages regarding financial aid, and more)!