Onsite Audit
For a serious hazard the foreign supplier controls, an audit is required before first import and at least annually, unless a written determination supports other or less frequent verification.
Sampling and Testing
Product testing at a frequency tied to the hazard and the supplier's record, with results reviewed and acted on.
Records Review and Other Activities
Review of the supplier's food safety records and other appropriate activities. The foreign supplier generally cannot perform its own verification, except sampling and testing.