County Board Supervisors who have voted on the awarding of a contract with a particular contractor, provider or vendor or who have had input into such award may not accept employment with such contractor, provider or vendor or their sub-contractors for a period of one year after such vote. No contractor, provider or vendor or their sub-contractor may make an offer of employment to such County Board Supervisor or any member of their immediate family prior to such vote or within one year after such vote. [Code § 19.10-1.]