IRS: The Internal Revenue Service
IRS Form
https://www.irs.gov/forms-instructions
Federal Income Tax Refund
https://sa.www4.irs.gov/irfof/lang/en/irfofgetstatus.jsp
EDD(California): The Employment Development Department
Franchise Tax Board
California Department of Tax and Fee Administration (formerly known as Board of Equalization)
IRS W4 Form
http://www.irs.gov/pub/irs-pdf/fw4.pdf
USCIS I-9 Form