The following is from the University Registrar's Registration Webpage

A registration hold is an item that can be placed on your student record to prevent you from registering for classes until the reason for its placement is resolved.

To view any holds that may be currently on your student record, login to the S.A.I.L. Student Portal and follow the instructions given below:

1.Click the Student tab.
2.Click on the Students Records link.
3.Click on the View Holds link.

Any holds currently on your student account will be reflected on this page. It is YOUR responsibility to note any hold(s) you may have and to contact the office/department responsible for placing the hold to resolve the issue.

You can also view holds in Degree Works.