An operation is required to have a ‘letter of assurance’ in the following cases:
- Purchasing/receiving compost/compost tea
- Purchasing/receiving ice
- Purchasing/receiving wax
- When they use a third party cleaning company for packaging materials
- For potatoes: To provide evidence that an unregistered variety has been tested for total glycoalkaloids (invoice from breeder is also acceptable)
- For cranberries sent for processing: To provide proof that a final rinse is occurring at the processor
- For greenhouse product: Purchasing/receiving growing media