(a) Verification activities. Verification activities must include, as appropriate to the nature of the preventive control and its role in the facility's food safety system:

1. (1) Validation in accordance with § 117.160.
2. (2) Verification that monitoring is being conducted as required by § 117.140 (and in accordance with § 117.145).
3. (3) Verification that appropriate decisions about corrective actions are being made as required by § 117.140 (and in accordance with § 117.150).
4. (4) Verification of implementation and effectiveness in accordance with § 117.165; and
5. (5) Reanalysis in accordance with § 117.170.