H-1B Petition Supporting Documents:

1. Copy of offer of employment 
2. Copy of applicant's Resume, including a list of publications (if applicable)
3. Proof that applicant has attained required degree
   • Ex: Copy of diploma/transcript that indicates the major field of study
4. Copy of applicant's passport identification page, including any extension pages
5. Copy of any previous US immigration documents (if applicable)
   • Ex: I-797 Approval Notices, I-20s, DS-2019s, EAD card
6. Copy of applicant's current I-94 card (if applicable)
7. Copy of applicant's visa (if applicable)
8. Letter from current employer verifying employment (if applicable)

(Source: http://www.indiana.edu/~intlserv/scholars/h-1b/dept_info/h1b_fees.php)