The Utah 3-day notice to vacate for assigning or subletting is a document used to communicate to a tenant that they have, against their rental contract, allowed an individual to live on the premises who wasn’t on the lease, and that they have three (3) days to leave or they will be unlawfully detaining the residence. A tenant is not permitted to have another individual occupy the premises without the provision in a lease document that allows a tenant to sublet, or without direct permission from the landlord. If the tenant refuses to leave within the notice period, they may face an eviction suit in court.

Laws – § 78B-6-802(1)(d)