6. A fertilizer or supplement that is not required to be registered shall not be registered.

7. No change in the label, chemical composition or ingredients of a fertilizer or supplement that is registered shall be made unless the registration is changed accordingly.

• 8. (1) Subject to this section, the President of the Agency may cancel the certificate of registration in respect of any fertilizer or supplement if he believes on reasonable grounds that with respect to that fertilizer or supplement there has been a violation of the Act or these Regulations, or of the Pest Control Products Act or any regulations made thereunder.

• (2) Where the President of the Agency intends to cancel a certificate of registration, he shall forward to the registrant by registered mail a notice stating that the certificate will be cancelled unless, within thirty days after the date of mailing such notice, the registrant notifies the President of the Agency that he wishes to have an opportunity to be heard respecting the proposed cancellation.

• (3) Where a registrant who has received a notice referred to in subsection (2) notifies the President of the Agency that he wishes to have an opportunity to be heard, the President of the Agency shall notify the registrant by registered mail of the time and place of a hearing to determine whether the registrant's certificate of registration shall be cancelled, which hearing shall be held within thirty days after the date on which the President of the Agency receives notice that the registrant wishes to have an opportunity to be heard.

• (4) Where a registrant who has received a notice referred to in subsection (2) fails to notify the President of the Agency that he wishes to have an opportunity to be heard or fails to satisfy the President of the Agency that his certificate of registration should not be cancelled, the President of the Agency may cancel that certificate or registration.

9. A fertilizer-pesticide registered pursuant to the Act that contains a pesticide acceptable for registration pursuant to the Control Products Act shall be deemed to be registered pursuant to the Pest Control Products Act.

10. The major plant nutrients present in every mixed fertilizer containing nitrogen, phosphorous or potassium shall be not less than 24% of the total content of the fertilizer, except if the mixed fertilizer is

• (a) a customer-formula fertilizer;

• (b) a specialty fertilizer;

• (c) a fertilizer the ingredients of which contain

  • (i) at least 50% that is of animal or vegetable origin and that supplies 25% of the nitrogen in the mixture in a water-insoluble form, and

  • (ii) at least 18% that is of major plant nutrients combined; or

• (d) a product registered under the Act.