A bureaucratic organization that functions mostly without executive or legislative control is known as

Answer: Independent regulatory agency

Explanation:

Regulatory agency is defined as the federal department that performs the function of implementing regulation and guidelines without any governmental or political factor or branch. It is considered as the part of executive department.

Even though it is a part of executive agency, it does not permit any department to interfere in the enforcement of regulations. Thus, it is considered as the public authority.