To be sold or labeled as an organically produced agricultural product under this chapter, an agricultural product shall⁠—

(1)  have been produced and handled without the use of synthetic chemicals, except as otherwise provided in this chapter;

(2)  except as otherwise provided in this chapter and excluding livestock, not be produced on land to which any prohibited substances, including synthetic chemicals, have been applied during the 3 years immediately preceding the harvest of the agricultural products; and

(3)  be produced and handled in compliance with an organic plan agreed to by the producer and handler of such product and the certifying agent.