Which of the following bodies has external influence regarding standards compliance?

A Project Management Office (PMO) is an internal organizational unit that standardizes project processes and governance within an organization, not an external body.

An Organizational Breakdown Structure (OBS) is a hierarchical project organization chart, internal to a project, showing relationships between activities and organizational units.

The International Organization for Standardization (ISO) is an independent, non-governmental international organization that develops and publishes international standards. These standards provide external guidance and influence regarding compliance across various industries and countries globally.

A Change Control Board (CCB) is typically an internal project governance body responsible for reviewing and approving changes to a project.