Yes. The 2018 Farm Bill made Cannabis Sativa containing less than 0.3% THC, and industrial hemp, federally legal. CBD is one of 113 cannabinoids found in the cannabis plant and under the 2018 Farm Bill is federally legal in concentrate, broad and full spectrum forms.
Each state has the ability to make their own rules and regulations regarding CBD and Hemp products. Always check check your local laws in your state before purchasing.