You will need original documents for immigration status
This will prove you u.s. immigration status
Are they any other documents I need to show also
IIs there a limit on how many replacement card I can get?
you must provide a letter from your sponsor .
Is this to confirm my curent school status?
yes this  Identifies you and confirms your current school status
How can I be authorized to work in the United States?
you can apply for an Individual Taxpayer Identification Number from the Internal Revenue Service IRS .
What if I am a foreign worker?