Final answer:
The US Code indeed provides enabling laws that allow agencies to issue rules, regulations, and standards, with the Executive branch overseeing them. Additionally, the necessary and proper clause actually expands rather than limits the powers of the national government.
Step-by-step explanation:
The question addresses whether the US Code provides enabling laws for agencies to promulgate rules, regulations, and standards. The answer is true. The US Code allows administrative agencies to issue rules or regulations implementing legislation, which govern their agency's actions.
The authority for these agencies comes through the Executive branch of the government with the President as the Chief Executive. Once Congress passes legislation detailing the scope of a new program, bureaucracies then move to enact it.
Where there are grey areas or specifics required for implementation, these agencies engage in the federal negotiated rulemaking process to draft and propose regulations that detail how certain federal policies, regulations, and programs will be applied within the agencies.
Furthermore, the necessary and proper clause, also known as the elastic clause, actually has the effect of expanding the power of the national government rather than limiting it.
Hence, the statement that the necessary and proper clause limits the power of the national government is false.