NBIC 2021 Edition Changes

The 2021 NBIC Draft Edition has been officially approved by the NBIC Committee. The list of major changes found below will appear in the 2021 NBIC, which will be available for purchase on July 1, 2021.

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 has been restructured into a tabular format.
• New requirements to allow for longer NDE cycles for Historical Boilers.
• New MAWP requirements for Return Flue Boilers.
• Several updates and revisions to Supplement 10.
• Revised carbon dioxide gas detection system requirements for Liquid Carbon Dioxide storage vessels.

Part 3:

• R-Forms and the directions for completing those forms 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 for 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 in 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 has been added to Part 4.

Glossary (all four Parts):

• New definitions for Brazing, Fusing, Verify, Welding, and Witness.