The Kansas Voluntary Do-Not-Sell Firearms List Act establishes a system for individuals to voluntarily register to be placed on a list that prevents them from purchasing firearms. The Kansas Bureau of Investigation (KBI) is tasked with creating and maintaining this list, which will be used to inform licensed firearm dealers if a potential buyer is prohibited from making a purchase. Individuals aged 18 and older can apply to be added to or removed from the list, either directly through the KBI or via a healthcare provider who verifies their identity. The KBI is required to keep all information related to the list confidential, with certain exceptions for law enforcement and the individuals themselves.

The bill also outlines several unlawful actions related to the list, including inquiring about someone's status on the list for unauthorized purposes, providing false information to manipulate someone's status, and discriminating against individuals based on their inclusion on the list. Licensed dealers are prohibited from transferring firearms to anyone on the list, and violations of the act can result in civil penalties. The provisions of the act are set to expire on July 1, 2030, unless renewed by the legislature.