Sec. 16904a. (1) Except as provided in subsection (2), an end-user is exempt from this part for scrap tires stored on the site of the end-user if not less than 75% of the scrap tires, by weight or volume, that are stored on site each calendar year are recycled or used for resource recovery during that year, and the end-user annually certifies his or her compliance with this section on a form approved by the department. (2) All end-users shall comply with the requirements of section 16906.