Any political subdivision of any state government.
Any agency or instrumentality of the US government, any state government or any political subdivision of any state government.
A governmental plan also includes:
Certain plans providing benefits to employees in the railroad industry.
Plans of certain tax-exempt international organizations.
Certain plans that both:
are established and maintained by a Native American tribal government, a subdivision of a Native American tribal government or an agency or instrumentality of either a Native American tribal government or one of its subdivisions; and
require that participants be employees performing essential government functions.