From the Document: "The Immigration and Nationality Act (INA) establishes removal processes for different categories of non-U.S. nationals (aliens) who do not meet requirements governing their entry or continued presence in the United States. Most removable aliens found in the interior of the country are subject to 'formal' removal proceedings under INA § 240. Aliens in these proceedings have certain procedural guarantees including the right to appear at a hearing before an immigration judge (IJ), to pursue relief from removal, and to appeal an adverse decision. But the INA sets forth a streamlined 'reinstatement of removal' process for certain aliens who unlawfully reenter the United States after being removed--a process that accounts for a considerable number of the removals of aliens found in the interior of the United States. This In Focus provides a brief introduction to the reinstatement of removal framework."
CRS In Focus, IF11736
Congressional Research Service: https://crsreports.congress.gov/