The commissioner shall designate a fiscal agent who shall establish and maintain a separate fund known as the “equalization fund” into which he shall deposit all payments made by marketers pursuant to sections 21.64 and 21.66 of this Part, and out of which, at the direction of a person duly authorized by the commissioner, such fiscal agent shall make all payments pursuant to sections 21.62, 21.65, 21.66 and 21.67 of this Part.