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2021 Edition Changes
The 2021 NBIC Draft Edition is currenly under review for final acceptance by the NBIC Committee. The list of major changes found below are subject to final approval by the NBIC Committee. This final approval vote will take place after the full Public Review process has been completed.
Summary of Major Changes:
Part 1:
- Revisions to 1.6.10 to add additional details/specifications for Testing and Final Acceptance.
- New requirements to remove covers, caps, plugs, wires, or restraining devices used for shipping/transporting pressure relief valves prior to a valve’s installation. These requirements are also included in Part 4.
- New temperature rating requirements for discharge piping and fittings.
- Revised carbon dioxide gas detection system requirements for Liquid Carbon Dioxide storage vessels.
- Updated installation requirements for Thermal Fluid Heaters.
- New Supplement 8 for Installation of Pressure Vessels for Human Occupancy (PVHOs)
- New Supplement 9 for High-Temperature Water Boilers
Part 2:
- New requirements for remote visual inspection for confined space entry.
- Several revisions/updates to the inspection requirements for PVHOs.
- New inspection requirements to ensure all shipping caps, plugs, covers, wires, and or restraining devices were removed during the installation process. These requirements are also included in Part 4.
- Part 2, 2.5.8 will be restricted into a tabular format.
- New requirements to allow for long NDE cycles for Historical Boilers.
- New MAWP requirements for Return Flue Boilers.
- Several updates and revision to Supplement 10.
- Revised carbon dioxide gas detection system requirements for Liquid Carbon Dioxide storage vessels.
Part 3:
- R-Forms and directions for completing them have been moved to a new Supplement 9.
- Revised language to clarify Quality Assurance Program requirements.
- Several revisions to Table 2.3 to only show the most recent edition of an SWPS. New language is included in Section 2.3 to allow the use of previous versions of the SWPSs listed in Table 2.3.
- New section detailing requirements on Welding Method 7.
- New language specifying that routine repairs are not permitted for ASME Section VIII, Div.2 or Div. 3 vessels.
- New requirements for flush patches in stayed and unstayed areas of tubesheets.
- New Section 3.3.6 for Pressure Vessel Impact Testing.
- New language that allows for the engineer review and certification process for alteration plans to be waived. This change applies to ASME Section VIII, Div. 2, Class 1 vessels.
- New requirements allowing for R-Certificate Holders to maintain their R-form logs using only the National Board EDT system.
- Several revisions to Supplement 4.
- New section S4.19 for the Repair of High Pressure Filament Wound Vessels.
Part 4:
- New pressure relief device requirements for boilers up to 4,000 lb/hr.
- New installation requirements for Thermal Fluid Heaters.
- New temperature rating requirements for discharge piping and fittings.
- Section 3.2.6 has been restructured into a tabular format.
- New language requiring the manufacturer’s correction factor used in pressure testing be recorded on the valve repair document in paragraph 4.8.5.4 i).
- Language to Section 4.7.4 has been simplified for clarity.
- Section 4.7.5 has been deleted as it is a duplicate of section 4.7.4.
- With the addition of the “T/O” program in the 2019 NBIC, Supplement 3 will be deleted for the 2021 edition.
- A new Supplement for Pressure Relief and Pilot Valve Storage and Shelf Life.
Glossary (all four Parts):
- New definitions for Brazing, Fusing, Verify, Welding, and Witness.
The full draft edition of the 2021 NBIC can be found here.
The 2021 edition of the NBIC will be available for purchase on July 1st, 2021.
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