What if I work in a Public Sector or Government role? What are the rules around this kind of contribution?

Public employees may contribute to IIA PAC.

However, federal contractors are not permitted to contribute to the PAC. This includes anyone who is bidding on a federal contract, with any agency or department of the United States government and is paid, or is to be paid, for services, material, equipment, supplies, land or buildings with funds appropriated by Congress.