The onboarding paperwork a broker needs before they will give you a load.
Authority, W-9, insurance certificate, signed broker-carrier agreement, and often a notice of assignment if you factor.
Read the broker-carrier agreement once, properly. It governs every load you take from them afterwards, including how claims and shortpays are handled.
Related
Inteleri works out what a load actually pays you once things like this land. See how it works.