I work in Northern Kentucky, just south of the Ohio R. across from Cincinnati, OH. Louisville officials belong to the Kentuckiana Football Officials Association (KFOA).
You will need to join the KHSAA:
www.khsaa.org
You will need to join the KFOA:
www.kfoa.org
I cannot speak to your ability to work varsity in your first year, but I do know games are assigned to individuals, not crews, in the KFOA. Contact them directly for more details.
Bobby McGrath, former NFL official, is the assignor for KFOA.
Matt Austin is the KFOA Supervisor.