The term "State" is defined as follows in section 3(7) of the Act:
Since States, as defined in section 3(7) of the Act, and political subdivisions thereof are not regarded as employers under section 3(5) of the Act, they would not be covered as employers under the Act, except to the extent that section 18(c)(6), and the pertinent regulations thereunder, require as a condition of approval by the Secretary of Labor of a State plan that such plan:
Are the individuals who administer the entity appointed by a public official or elected by the general electorate?
What are the terms and conditions of the appointment?
Who may dismiss such individuals and under what procedures?
What is the financial source of the salary of these individuals?
Does the entity earn a profit? Are such profits treated as revenue?
How are the entity's functions financed? What are the powers of the entity and are they usually characteristic of a government rather than a private instrumentality like the power of eminent domain?
How is the entity regarded under State and local law as well as under other Federal laws?
Is the entity exempted from State and local tax laws?
Are the entity's bonds, if any, tax-exempt? As to the entity's employees, are they regarded like employees of other State and political subdivisions?
What is the financial source of the employee-payroll?
How do employee fringe benefits, rights, obligations, and restrictions of the entity's employees compare to those of the employees of other State and local departments and agencies?
In evaluating these factors, due regard will be given to whether any occupational safety and health program exists to protect the entity's employees.
29 C.F.R. §1975.5