Legislation at state and federal levels seeks to limit the practice of bundling, by requiring publishers to offer all components separately. Publishers have testified in favor of bills including this provision, but only in the case that the provision exempts the loosely defined category of "integrated textbooks." The Federal bill"Higher Education Opportunity Act ." H.R.4137, U.S. House of Representatives, 110th Congress (2007–2008.) Public Law No. 110-315. Retrieved 7 October 2011. only exempts 3rd party materials in integrated textbooks, however publisher lobbyists have attempted to create a loophole through this definition in state bills.
