Approval of an application for conversion shall be conditioned upon the granting of the necessary rezoning or use permit if rezoning or a use permit is required. Except as provided in Section 4584, all timber shall be cut pursuant to an approved conversion pursuant to Section 4581, excluding requirements for stocking and methods of silviculture, except that the timber harvesting plan required by that section need not be prepared by a registered professional forester, and no timber operations shall commence until the granting of such rezoning or use permit as may be required and until the timberland conversion permit is recorded in the county recorder’s office in each county wherein the timberland to be converted is located.