NBBI R Endorsement study materials
NBBI R Endorsement study resources

NBBI R Endorsement flashcards

NBBI R Endorsement · Build recall with a focused review session.

32 cards. Read the term and the definition here. The deck at the top of this page is optional.

R stamp authority
The National Board issues the R stamp, which authorizes a qualified holder to repair or alter boilers and pressure vessels under the NBIC rather than to construct new items.
Prerequisite ASME authorization
Before receiving an R certificate, an applicant normally must hold an appropriate ASME Code certificate of authorization for the scope of work, or an equivalent National Board authorization.
Joint review
Accreditation requires an on-site review conducted jointly by the National Board and the jurisdiction where the shop is located, covering the QC manual and actual work practices.
Certificate term and renewal
The R certificate is issued for a defined term, commonly three years, and must be renewed before it expires; work after expiration is not valid R-stamp work.
Scope of authorization
The certificate states which types of items the holder may repair or alter; performing work outside that scope requires a scope change or additional authorization.
Notification of changes
Changes in name, address, ownership, or shop location must be reported to the National Board and typically require a new review before the certificate is reissued.
Suspension or withdrawal
Failure to correct nonconformities found at review, or loss of the underlying ASME authorization, can lead to suspension or withdrawal of the R certificate.
Holder directory
The National Board publishes a directory of current R stamp holders, which owners and jurisdictions use to confirm that a shop's authorization is active.
Repair versus alteration
A repair restores an item to a safe and sound condition without changing design parameters; an alteration changes pressure, temperature, capacity, or configuration.
Governing code for repairs
Repairs and alterations follow the NBIC and, where the NBIC refers to it, the original code of construction for materials, design, and examination requirements.
Welding procedure qualification
Welded repairs require a written welding procedure supported by a procedure qualification record, and welders must be performance-qualified under ASME Section IX.
Post-weld heat treatment
When the original construction code would require post-weld heat treatment for the material and thickness involved, the repair must receive equivalent heat treatment.
Alteration re-rating
An alteration that changes design conditions requires new calculations and approval by the Authorized Inspector, and often by the jurisdiction, before the work is accepted.
Authorized Inspector notification
The Authorized Inspector must be notified before repair work starts and must verify required examinations before the R stamp is applied to the item.
R stamp marking content
The R stamp is applied with the National Board registration number, the date, and identifying data required by the NBIC, typically on the nameplate or an attached plate.
Material traceability
Repair materials must be traceable through mill test reports or equivalent documentation, and any substitution must be evaluated against the original design requirements.
Record retention
The R stamp holder retains repair and alteration records, including procedures, material documentation, and inspection results, and makes them available to the inspector and National Board.
QC manual control
The quality control manual must be written, dated, and controlled, and it defines the organization, authority, and responsibilities for performing and verifying repair work.
Organization chart requirement
The manual must include a current organization chart and identify the individual with overall quality authority and the person responsible for code compliance.
Required manual elements
Manual content covers design inputs for alterations, material control, welding, NDE, heat treatment, equipment calibration, nonconformance control, and records.
Personnel qualification program
A documented program must qualify welders, welding operators, NDE personnel, and inspectors, with current records retained and available for review.
Inspector access and hold points
The manual must describe how the Authorized Inspector gains access to the shop, work in progress, and records, and where inspection hold points are established.
Nonconformance control
Nonconforming items must be identified, segregated where practical, evaluated, and dispositioned by qualified personnel, with corrective actions documented and tracked.
Internal audits
The quality program requires periodic internal audits performed by personnel independent of the activity audited, with findings and corrective actions recorded.
Calibration traceability
Measuring and test equipment must be calibrated traceably to recognized standards with a recorded next-due date; instruments found out of calibration require evaluation of prior results.
Document control at the worksite
Only current, approved procedures may be used at the point of work, and superseded documents must be removed or clearly marked to prevent inadvertent use.
R-1 data report
The R-1 form documents a repair or alteration, including item identification, scope of work, code editions used, materials, and examination results, signed by holder and inspector.
National Board registration number
Each repair or alteration receives a National Board registration number that appears on the R-1 form and in the stamping applied to the item.
R-1 distribution
The completed R-1 report goes to the owner or user, the Authorized Inspector, and the National Board, with a copy retained by the R stamp holder.
Supporting records
NDE reports, heat treatment charts, and material certifications must be traceable to the specific R-1 report and retained together with it.
Revision of a data report
A revision to a submitted R-1 report must be documented with the reason stated and distributed to the same recipients as the original report.
Meaning of inspector signature
The Authorized Inspector's signature attests that the repair or alteration complied with the applicable code and NBIC, not that the item is suitable for a specific service.