Congress certainly has the sole right to enact the legislation with which administrative agencies must comply. Moreover, the Congress has an oversight function, and it can and does react when people respond negatively to administrative actions, as occurred in the SSI and disability review examples Derthick, p. 153. Of course, the Court system is the major overseer in the United States. Derthick maintains that courts and administrative agencies perform sufficiently similar roles, making their potential for conflict great Derthick, p. 131.
The program counter is also mapped into the data space and writable.