The legislative history of the Postal Rate Commission enabling statute is available on the agency website. To locate it, look at the top of the homepage navigation bar, and click on ARCHIVES. This in turn will take you to this page, where the database hosting the legislative history is located. In addition to this resource, the aforementioned link will also give you access to other valuable archival resources, including court cases, dockets, MC decisions, and orders (going back to the 1970 origin of the Commission).