If homemade preparations, plant strengtheners, soil conditioners, or any other such substances are used on certified crops, records shall be available. These records shall include the name of the substance (e.g. plant from which it derives), the trade name (if purchased product), the field, the date, and the amount. If in the country of production a registration scheme for this substance(s) exists, it has to be approved.
Where the substances do not require registration for use in the country of production, the producer shall make sure that the use does not compromise food safety."