Make the Migrant Protection Protocols Mandatory Act of 2023

This bill would make the Migrant Protection Protocols (MPP) mandatory under U.S. immigration law. Currently, the law permits border officials to use MPP (a policy requiring certain non-citizens arriving at the border to wait in Mexico while their case is processed), but this bill changes the language from "may" to "shall" in the Immigration and Nationality Act. This means the government would be required to implement MPP for eligible cases instead of having the option to choose. The change would directly affect border processing for non-citizens subject to MPP, altering how immigration cases are handled at the U.S. border.