29 CFR §471.4

1. (a)The following employers are excluded from the definition of “employer” in the National Labor Relations Act (NLRA), and are not covered by the requirements of this part:
   1. (1)The United States or any wholly owned Government corporation;
   2. (2)Any Federal Reserve Bank;
   3. (3)Any State or political subdivision thereof;
   4. (4)Any person subject to the Railway Labor Act;
   5. (5)Any labor organization (other than when acting as an employer); or
   6. (6)Anyone acting in the capacity of officer or agent of such labor organization.
2. (b)Additionally, employers exclusively employing workers who are excluded from the definition of “employee” under the NLRA are not covered by the requirements of this part. Those excluded employees are employed:
   1. (1)As agricultural laborers;
   2. (2)In the domestic service of any family or person at his home;
   3. (3)By his or her parent or spouse;
   4. (4)As an independent contractor;
   5. (5)As a supervisor as defined under the NLRA;
   6. (6)By an employer subject to the Railway Labor Act; or
   7. (7)By any other person who is not an employer as defined in the NLRA