The significant impact of legalizing hemp on our perception of cannabis lies in how it established the definition of hemp. While hemp and cannabis share the exact botanical origin, the 2018 Farm Bill introduced a stringent criterion to differentiate between the two. It set a threshold of 0.3% THC (tetrahydrocannabinol) content, designating plants with less than 0.3% THC as legal hemp and those surpassing this limit as federally illegal cannabis plants.