The R.C.C. was created by the Railroad Control Commission Act of 1878. It was originally an investigative rather than a regulatory agency, with the power to investigate complaints and make recommendations for rate adjustments. However, like most of the reforms carried out during McDowell's first term, the R.C.C. had no power to enforce its recommendations.
The power of the R.C.C. was increased substantially by the Transportation Act of 1883, which empowered the agency to order changes in railroad policy. The R.C.C. would continue to play an important role in regulating the C.N.A.'s railroad companies under Governor-General Ezra Gallivan.
The growing importance of locomobiles in the C.N.A.'s transportation network in the early 20th century reduced the importance of the railroads, and hence of the R.C.C. Although Sobel does not specifically say so, presumably the R.C.C. was abolished or subsumed within a larger transportation regulatory agency during Henderson Dewey's reorganization of the national bureaucracy in the 1920s.