As you want to do MBA form Stanford Graduate School of Business so asking for admission requirement and FAFSA Code, here is require info:

Required Application Materials
Free Application for Federal Student Aid (FAFSA) — A web-based application provided by the U.S. Department of Education
Graduate Application — Stanford’s institutional application.

FAFSA


2015-2016 FAFSA - Complete online with Stanford’s school code 001305 on or after January 1, 2015.

Required Materials
Completed Program Application
U.S. Federal Tax Return
Spouse’s U.S. Tax Return
Proof of Employment and Wages
Proof of Spouse’s Employment and Wages
Mission and Scope of Activities
Employer’s Tax-Exempt Status
Verification of Loan Debt
Proof of Childcare Expenses
Document Translation
Six-Month Renewal Application

Application Process
Award Letter
Acknowledgement/Acceptance Letter
Disbursement
Renewal Process

MBA six-month renewal application
Proof of continued employment in an eligible organization.
Proof of current salary level and spouse’s, if applicable.
Copies of federal and state income tax returns and W-2s for the previous calendar year.
Proof of current payment status of all educational loans.
Confirmation that all educational loans are in good standing (i.e., no delinquency).

Renewal Award Letter and Acceptance Letter

Address
Stanford Graduate School of Business
655 Knight Way, Stanford, CA 94305