Sponsored Checklist

Guide to Implementing Effective Plant-Wide CCDs and IOWs

The Equity Engineering Group, Inc., December 1, 2021

Sponsored by   


For many years, the refining industry has used corrosion control documents (CCDs) and integrity operating windows (IOWs) to manage the integrity of fixed equipment and establish optimum operating ranges for specific equipment. Other types of processing facilities are now implementing similar workflows to improve inspection effectiveness and turnaround planning, and most importantly, minimize the risk of process leaks and unplanned shutdowns.

API RP 970, Corrosion Control Documents, provides recommendations on developing, implementing, and maintaining CCDs, which summarize a unit's process description and its corrosion circuits, including the damage mechanisms in each circuit, as well as startup and shutdown corrosion influences. API RP 584, Integrity Operating Windows, provides information and guidance on developing and implementing IOWs, which are sets of operating limits used to determine the different variables that could affect the integrity and reliability of a process unit.

This guide serves as a companion piece to Inspectioneering's webinar, Understanding the CCD/IOW Implementation Process, and has been developed to help inspectors, process engineers, site metallurgists, reliability engineers, and senior management understand the benefits that CCDs and IOWs bring to a mechanical integrity program. It also provides a 9-step process for the successful implementation of CCDs and IOWs at a facility.

Log in or register below to download this free guide to implementing effective plant-wide CCDs and IOWs.

Guide to Implementing Effective Plant-Wide CCDs and IOWs

To download this file, please

Log in or Create an account

Inspectioneering Journal

Explore over 20 years of articles written by our team of subject matter experts.

Company Directory

Find relevant products, services, and technologies.

Training Solutions

Improve your skills in key mechanical integrity subjects.

Case Studies

Learn from the experience of others in the industry.


Inspectioneering's index of mechanical integrity topics – built by you.

Industry News

Stay up-to-date with the latest inspection and asset integrity management news.


Read short articles and insights authored by industry experts.

Expert Interviews

Inspectioneering's archive of interviews with industry subject matter experts.

Event Calendar

Find upcoming conferences, training sessions, online events, and more.


Downloadable eBooks, Asset Intelligence Reports, checklists, white papers, and more.

Videos & Webinars

Watch educational and informative videos directly related to your profession.


Commonly used asset integrity management and inspection acronyms.