CHA Verification & Validation of HACCP Systems 2

Question 1

Which document provides the primary scientific basis for validating a thermal kill CCP for a meat product?

Accepted Answer

Published pathogen D-value and z-value data from peer-reviewed literature

Answer

Validation relies on scientific data such as published D-values and z-values to confirm a thermal process achieves the required log reduction of target pathogens.

Question 2

When a HACCP team modifies a critical limit at a CCP, what is the required next step before resuming production?

Accepted Answer

Revalidate the HACCP plan to confirm the new limit controls the hazard

Answer

Any change to a critical limit requires revalidation to ensure the modified limit still effectively controls the identified hazard.

Question 3

A HACCP auditor reviews calibration records for a thermometer used at a cooking CCP and finds calibration was last performed 14 months ago, exceeding the 6-month requirement. This is BEST classified as:

Accepted Answer

A verification procedure non-conformance

Answer

Overdue calibration of a monitoring instrument is a failure of the verification procedure requiring that equipment remain calibrated per schedule.

Question 4

In HACCP terminology, 'challenge testing' using inoculated pack studies is an example of:

Accepted Answer

Validation of a critical control point

Answer

Inoculated pack studies challenge the process with target organisms to scientifically confirm the CCP achieves the required hazard reduction, which is validation.

Question 5

Which of the following is a VERIFICATION activity in an ongoing HACCP system?

Accepted Answer

Reviewing CCP monitoring records for completeness and correctness

Answer

Reviewing CCP monitoring records is a verification activity that confirms the HACCP system is being implemented as planned.

(CHA) Certified HACCP Auditor Practice Test

(CHA) Certified HACCP Auditor Practice Test

CHA Verification & Validation of HACCP Systems 2