Immigration - As enacted, requires a memorandum of understanding entered between certain law enforcement agencies and federal officials concerning enforcement of federal immigration laws to include a requirement that the agency accept and honor any immigration detainer received from federal immigration authorities. - Amends TCA Title 4; Title 7; Title 38 and Title 41.

HB 2018 requires Tennessee law enforcement agencies to accept and honor federal immigration detainers by maintaining custody of individuals for 48 hours beyond their scheduled release date (excluding weekends and holidays) to allow federal authorities to take custody. It also mandates that agencies notify federal immigration officials as soon as possible before releasing someone subject to a detainer. This applies to all Tennessee law enforcement agencies and takes effect July 1, 2026. The bill amends Tennessee Code sections related to law enforcement procedures to implement these requirements.