→ <u><em>Congress</em></u> (It has to be <u><em>Congress</em></u>)
Explanation:
For a government office, board, or commission to give a standard or guideline with the power and impact of regulation, it should get that authority from an express award of force by <u><em>Congress</em></u>.
Therefore, <u><em>Congress</em></u> should be your answer!