According to the documentation, it seems they have to live with you:

The intent of this amendment is to assist employees in providing health coverage to other adult individuals residing in their household, and the dependents of those other adults who otherwise meet eligibility requirements, who are currently not eligible for the Health Benefits Plan for State Employees

It would cover any adult living in your house, and all of their children.

So if you have a big house, and your brother's family moves in, you can get the whole family covered.

I didn't see the details, but I wonder if this means that people who rent a room to a public employee could also get medical coverage.
 

Regards,

Padangos