Continual, checking, supervising, critically observing or determining the status in order to identify change from the performance level required or expected

  • Note: 1 to entry: Examples of well physical characteristics include tubing wall thickness measurements, visual inspections, sampling.

Source: ISO 16530-1:2017, Petroleum and natural gas industries — Well integrity – Part 1: Life cycle governance, First Edition, March 2017. Global Standards


periodic monitoring, during the periods of certification, of a certified person’s performance to ensure continued compliance with the certification scheme

[SOURCE: ISO/IEC 17024:2012, 3.22].

Source: ISO/IEC TS 17027:2014, Conformity assessment – Vocabulary related to competence of persons used for certification of persons, Global Standards


Set of activities, except reassessment, to monitor the continued fulfilment by accredited CABs of requirements for accreditation
NOTE Surveillance includes both surveillance on-site assessments and other surveillance activities, such as the following:
a) enquiries from the accreditation body to the CAB on aspects concerning the accreditation;
b) reviewing the declarations of the CAB with respect to what is covered by the accreditation;
c) requests to the CAB to provide documents and records (e.g. audit reports, results of internal quality control for verifying the validity of CAB services, complaints records, management review records);
d) monitoring the performance of the CAB (such as results of participating in proficiency testing).

Source: ISO/IEC 17011:2004, Conformity assessment – General requirements for accreditation bodies accrediting conformity assessment bodies. Global Standards

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