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 Committee Scope

Welcome to the home page of the API Subcommittee on Inspection and Mechanical Integrity (SCIMI). The SCIMI develops industry standards that address inspection and mechanical integrity issues related to refining process equipment. Issues of particular interest to the SCIMI include: safe practices in the inspection of and repair of pressure vessels, aboveground storage tanks, and piping; equipment reliability; corrosion mechanisms; and reducing capital and maintenance costs. Each meeting of the subcommittee provides a forum for an information exchange on problems and opportunities where industry experts share experiences from operations around the world.

The SCIMI work program of documents includes:

API 510 - Pressure Vessel Inspection Code
API 570 - Piping Inspection Code
RP 572 - Inspection of Pressure Vessels
RP 573 - Inspection of Fired Heaters and Boilers
RP 574 - Inspection of Piping System Components
RP 575 - Inspection of Aboveground Storage Tanks
RP 576 - Inspection of Pressure-Relieving Devices
RP 577 - Inspection of Welding and Metallurgy
RP 578 - Material Verification Program for New and Existing Alloy Piping Systems
RP 580 - Risk-Based Inspection
RP 581 - Risk-Based Inspection - Base Resource Document
RP 583 - Corrosion Under Insulation
RP 584 - Integrity Operating Windows
RP 585 - Pressure Equipment Failure
RP 586 – NDT Methods for Equipmen​​​​t Damage Mechanisms
Bulletin 587 - Guidance for the Development of Ultrasonic Examiner Qualification Programs
RP 588 - Source Inspection for Fixed Equipment​​

Bulletin 590 – Common Terms & Definitions for SCIMI Documents
Bulletin 592 – Elements of a Fixed Equipment Mechanical Integrity Program
Technical Advisory Group for RP 751, Section 6/Annex G/Annex H

Chair:   Mark Geisenhoff, Flint Hills Resources
Vice-Chair:   Justin Monroe, Chevron

API Contact: Christopher Hughes

Click on “Calendar of Events" under Links for meeting logistics and other information.



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Ballot Information
NameAPI RP 576 Inspection of Pressure-relieving Devices – Third Ballot Redline Only
Start Date08/18/2023
Closing Date09/18/2023
AssociateChristopher Hughes
CoordinatorChristopher Hughes
ProposalTo approve the changes since the Ballot 5999
ResultsResolution Required

Ballot Summary
Did Not Vote16 
Total Responses26 
Total Ballots42 
Response Rate61.90%Must be > 50%
Approval Rate91.67%Must be >= 66.67%
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 API SCIMI Master Scorecard
 Reference API Governance Documents
 API ICP (Individual Certification Programs)
 API-SCCM (SubCommittee on Corrosion & Materials)
 API-SCAST (SubCommitttee on Above Ground Storage Tanks)
 Interpretations - API Refining Equipment Standards
 API - Calendar of Events
 Post Construction Committee Website
 Subcommittee on Repair & Testing Draft Documents
 Subcommittee on Repair & Testing Meetng Minutes
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