The Contractors work will be subject to internal quality audits to ensure that the required ISO policies, procedures, and practices are being properly followed. Audit reports and other quality records will be made available to the customer upon request.
Internal Quality Audits will be scheduled on the basis of the status and importance of the activity to be audited. At a minimum, each project will be audited once per year.

Audits will be carried out by personnel independent of those having direct responsibility for the activity being audited.
The results of audits will be recorded and brought to the attention of the personnel having responsibility in the area audited. The management personnel responsible for the area will take timely corrective action on deficiencies found during the audit.
Follow-up activities will verify and record the implementation and effectiveness of the corrective action taken.

Reference Documents:
The internal audit procedure for projects is described in:-
General Quality Assurance procedure: