Congress passes legislation. The text of the legislation authorizes an agency, or agencies, to develop detailed rules to conform with the legislation. Executive Agencies issue regulations (rules). Both legislation and regulations have the force of law.
Congress passes legislation.
P.L. 103-159 Slip Law
This is the Public Law number assigned when a bill passes.
52 Stat. 1041 Statutes at Large
Public Laws are compiled in the United States Statutes at Large. The number refers to the location of the law in the compiled statutes.
21 U.S.C. 376 United States Code (USC).
Laws are compiled and codified under "Titles" in the United States Code (USC).
Agencies enact regulations.
42 Fed.Reg. 36455 Federal Register (FR)
Agencies propose, open for comment, and finally publish "Final Rules" in the Federal Register.
21 CFR § 102.23 Code of Federal Regulations (CFR)
Regulations (Final Rules) are compiled and codified under "Titles" in the Code of Federal Regulations.
Search for Joint Resolutions with the search string: "Providing for congressional disapproval under chapter 8 of title 5, United States Code"