Referred to the Committee on Natural Resources, and in addition to the Committee on Agriculture, for a period to be subsequently determined by the Speaker, in each case for consideration of such provisions as fall within the jurisdiction of the committee concerned.
H.R. 4180, called Canyon's Law, would ban the use of M-44 devices (cyanide bombs) on all federally managed public lands. These devices, which dispense sodium cyanide to kill coyotes and other wildlife that threaten livestock, are extremely toxic and classified by the EPA as the most hazardous pesticide available. The bill requires federal, state, and county agencies to remove any M-44 devices already placed on public land within 30 days of the law taking effect. According to the bill's findings, M-44 devices have killed dozens of family dogs and exposed multiple people, including children, to cyanide poisoning; they also frequently kill non-target wildlife including endangered species and are only effective about half the time. The legislation applies to lands managed by the National Park Service, Fish and Wildlife Service, Bureau of Land Management, Bureau of Reclamation, and Forest Service, and was introduced by Representative Jared Huffman and six co-sponsors in June 2025.
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