Oregon joins eight other states who have made the same commitment, but contrasts with Iowa which last year signed a law requiring the sale of caged eggs in grocery stores.

The new law in Oregon will not only require the production of cage-free eggs, but for eggs produced in other states but sold in Oregon to likewise be cage-free.

The Humane Society of the United States praised the new law, which will take effect by 2024, saying that it will "greatly improve conditions for egg laying hens by prohibiting cages, giving each bird more space and requiring enrichments that are key to their well-being, including perhces, nests, as well as scratching and dust-bathing areas."