Once you send the form, your details go to a local electrician or generator installer who covers your town. Expect a call or email with a few questions, then a site visit and written quote if the job makes sense. There is no charge and no obligation.
It helps to mention whether the house has natural gas, the panel size if you know it, the circuits you most want running in an outage, and for repairs, the generator brand and any code on its display.