IRS forms for sub-contractors?

I know there is a 1099 you give your sub-contractors in Jan, but what is the form they fill out when they first start work with you. Does anyone have a link to the exact form?

Public Comments

1. W9 http://www.irs.gov/pub/irs-pdf/fw9.pdf
2. You send them a W-9. The put their SSN or EIN on it and return it to you.
3. W-9 request tax ID # so they can file a 1099 showing your income
4. You should just have a sub-contractor file, with the sub's Name, Address, Social and Phone. http://www.irs.gov/businesses/small/article/0,,id=99930,00.html This is from the IRS website. Good luck & bless
5. The form they fill out for you is a W-9