Regulatory Agency

subset of Federal Agency list

http://en.wikipedia.org/wiki/List_of_United_States_federal_agencies

http://en.wikipedia.org/wiki/Regulations

different agencies are within different Three Branches

some within the Executive Branch are "independent" of the Executive Department-s. Established through separate statutes passed by the US Congress, each respective statutory grant of authority defines the goals the agency must work towards, as well as what substantive areas, if any, it may have the power of rulemaking over.

• http://en.wikipedia.org/wiki/List_of_United_States_federal_agencies#Independent_Agencies
• examples: EPA, FTC, FCC, NASA, CIA
• some consider these independent enough to qualify as a Fourth Branch of government.
• some consider it to at least part of a Deep State