IRS Form 1098-T, is entitled "Tuition Statement," and contains information to assist the IRS and you in determining if you are eligible to claim educational related tax credits such as the American Opportunity Credit and Lifetime Learning Tax Credit.
The Tax Relief Act of 1997 states that educational institutions, such as California State University, East Bay, are required to file informational returns with the IRS indicating a student's enrollment, and report either amounts billed, or payments received for qualified tuition and related expenses.
The 1098-T the student receives in the mail is the information that was sent to the IRS by California State University, East Bay. This form is an informational return for your personal records, and is not required to be submitted with your tax return.