**NRC INSPECTION MANUAL** NMSS/RII

INSPECTION PROCEDURE 88143

PIPE SUPPORTS AND RESTRAINTS

PROGRAM APPLICABILITY: 2630

88143‑01 INSPECTION OBJECTIVES

01.01 To determine whether the technical requirements detailed or
referenced in the facility Construction Authorization Request (CAR),
associated with pipe supports and restraints in Seismic Category I
(SC-I) and SC-II systems, have been adequately addressed in the
construction specifications, drawings, and work procedures.

01.02 To determine whether requirements and commitments, in the approved
Quality Assurance (QA) Plan, have been addressed in QA plans,
instructions, and procedures, for pipe supports, and restraints, in SC-I
and SC-II systems, and whether they have been established and installed,
in accordance with construction specifications, drawings, and facility
requirements.

01.03 To determine through direct observation and independent evaluation
of work, whether the licensee\'s work control system is functioning
properly and whether the installation of pipe supports and restraints in
SC-I and SC-II systems are in compliance with U.S. Nuclear Regulatory
Commission (NRC) requirements, licensee commitments, and applicable
codes.

01.04 To determine whether: (1) the licensee is adequately implementing
the QA program associated with, pipe supports and restraints, including
preparing, reviewing, and maintaining a system of quality records; (2)
the records reflect work accomplishment consistent with NRC
requirements, CAR commitments, and the QA Plan; and (3) the records
indicate any potential generic problems, management control
inadequacies, or other weaknesses that could have safety significance.

88143‑02 INSPECTION REQUIREMENTS

Note: These requirements should be implemented so that each major
contractor constructing pipe supports and restraints in SC-I and SC-II
systems is inspected. The number of samples and attributes reviewed may
be adjusted on management approval, depending on the number of
contractors and specific work being performed. Approximately
three-quarters of the samples reviewed should be in SC-I systems.

02.01 [Review of QA Implementing Procedures]{.underline}. Review QA
Manual and implementing procedures associated specifically with pipe
supports and restraints, to determine whether the commitments in the
approved QA Plan are being implemented as follows:

a.  Adequate QA audit procedures have been established for this
    activity, in accordance with, the approved QA Plan including: (1)
    scope and frequency of audits; (2) audit criteria; (3) reporting
    requirements; (4) followup action; and (5) resolution of findings by
    those audited.

b.  Provisions have been made to ensure that those engaged in conducting
    audits are qualified and have been adequately trained. Provisions
    must ensure that auditors do not have direct responsibility in the
    areas being audited.

c.  Means have been established to verify that technical requirements,
    including material and component specifications (including
    traceability and marking requirements for nuts, bolts and other
    fastener items), acceptance criteria, and required documentation are
    specified in design and procurement documents.

d.  Means have been established to verify that any significant design
    and field changes from approved drawings are adequately controlled
    and processed commensurate with the original design.

e.  Provisions have been established to ensure that quality requirements
    are met (including documentation that quality requirements of
    materials and components are met before installation or use) and
    that deviations, nonconformances, and defects are adequately
    documented and processed through to complete resolution.

f.  The licensee has established a program for ensuring that all craft,
    nondestructive examination (NDE), and inspection personnel
    associated with the installation of pipe supports and restraints
    have been trained, or otherwise qualified to the work procedures
    involved. Specific attention should be directed toward those engaged
    in the installation and testing of concrete expansion anchors, if
    these are used.

02.02 [Review of Work Procedures]{.underline}.

a.  Determine whether procedures and instructions (e.g., drawings,
    specifications, manufacturers\' instructions, etc.) pertaining to
    pipe supports and restraints have been reviewed and approved. Make
    this determination by reviewing an appropriate sample of work
    procedures.

> The sample should include procedures and instructions for supports on
> various-size piping, and instrumentation lines.

b.  Determine whether work procedures incorporate the following:

    1.  Controls to ensure that the type and classification of pipe
        supports and restraints comply with approved drawings and/or
        specifications and meet licensee commitments.

    2.  Instruction and precautions to ensure that welding, cutting,
        forming, heat treating, and machining are performed in a manner
        that will prevent the impact properties of the material from
        being degraded below specified values.

    3.  Provisions for ensuring that required pre-installation and
        in‑process inspections, as discussed in Section 02.03a, are
        performed at the appropriate time.

    4.  Means to ensure that bolts, nuts, and washers (including
        lubricant, if used) are of the proper type, size, and material,
        with required identification-markings; are correctly installed;
        and, where required, bolt pre-loading (torquing), minimum bolt
        embedment, and thread engagement criteria are imposed.

02.03 [Observation of Work and Work Activities]{.underline}. By direct
observation, interviews, and independent evaluation of work performance,
work in progress, and completed work, determine whether activities
regarding pipe support and restraint systems are being accomplished, in
accordance with NRC requirements, CAR commitments, and licensee
procedures.

a.  [Pre-installation Activities]{.underline}. Select three to five
    supports or shock suppressors and confirm performance of the
    following:

    1.  Pre-installation checks are made to ensure hydraulic units are
        not installed if there is evidence of excessive leakage of
        hydraulic fluid (possible damage or deterioration of seals),
        physical damage, or corrosion of polished sliding surfaces. (Not
        required if hydraulic snubbers are not used.)

    2.  Pre-installation check on variable type supports are performed
        for obvious damage, rust, or other conditions that may interfere
        with their proper operation.

    3.  Pre-installation checks are made to ensure that bolts, nuts and
        other fastener items are available and are of the correct type,
        size, and material with required identification markings.

    4.  Any pre-installation field repairs or adjustments to the units
        are performed in accordance with the manufacturers\'
        instructions and specifications, to ensure that performance
        requirements are met.

    5.  Installation equipment such as torque wrenches and other testing
        and measuring devices are properly controlled, calibrated, and
        adjusted at specified periods.

    6.  Personnel engaged in the installation of pipe supports and
        restraints have received adequate training to perform special
        processes contained in relevant work performance and inspection
        procedures.

b.  [Installation Activities]{.underline}.

    1.  Witness portions of the installation activities of five to ten
        pipe supports to verify the following:

        a.  The latest issue (revision) of applicable drawings or
            procedures is available to the installers.

        b.  Appropriate personnel approve significant modifications to
            supports, before implementation.

        c.  The use of jacks or rigging to pull piping into position for
            hanger installation or welding does not exceed cold-spring
            allowances for that particular material, size, and length of
            pipe run.

        d.  Clearances existing between the pipe and restraints are as
            specified.

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2.  Witness portions of the installation and testing of concrete anchor
    bolts for five to ten component-support elements (of various types
    and pipe sizes), to verify that anchor-bolt type, diameter,
    embedment length, shoulder‑to‑cone measurements, and torque
    requirements meet installation requirements.

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c.  [Dynamic Pipe Supports]{.underline}. Select a total of five to 10
    installed restraints covering at least three different load
    classifications and at various degrees (easy or difficult) of
    accessibility; and determine, by visual examination, whether the
    following conditions meet applicable requirements:

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1.  Components are free from corrosion or other signs of deterioration.

2.  Support plates, extension rods, and connecting joints are not bent,
    deformed, loose, or otherwise out of specification.

3.  Bolts, nuts, washers, locking devices, and other fasteners are tight
    and secure and are of the correct type, size, and material, with
    required identification markings. Where required, bolt-tension
    specification requirements have been met through the use of properly
    calibrated bolt-torquing wrenches and torque multipliers.

4.  Bleed holes are open and free from foreign material.

5.  Lubricants and sealants are applied as specified and there does not
    appear to be excessive leakage.

6.  Seals are not deteriorated (if visually observable without
    dismantling).

7.  Connecting joints, moving parts, piston shafts, seals, etc., are
    free from foreign material such as concrete, dropped paint,
    excessive dust and dirt, or other material that may obstruct proper
    operation.

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d.  [Rigid, Constant, and Variable-Type Supports]{.underline}.

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1.  Select a total of five to 10 installed spring-hanger assemblies
    covering three different load ratings and observe the following:

    a.  Hanger rods for supporting (2‑inch) pipe are not less than
        (3/8‑inch) diameter, and for (2‑1/2‑inch) pipe or larger, not
        less than (1/2‑inch) diameter.

    b.  Spring hangers are provided with indicators to show the
        approximate Ahot@ or Acold@ position, as appropriate.

    c.  Spring hangers enclosed in spaces that will be subjected to high
        ambient temperatures during facility operation have suitable
        service ratings to accommodate the expected
        operating-temperature range.

2.  Select a total of five to 10 installed pipe supports of different
    sizes (load rating) and at various degrees of accessibility.
    Determine, by visual examination, whether the following conditions
    exist:

    a.  No deformation or forced bending is evident.

    b.  No deterioration or corrosion is evident.

    c.  Where pipe clamps are used to support vertical lines, shear lugs
        are welded to the pipe (if required by installation drawings) to
        prevent slippage.

    d.  Movements of pipe from vibration, thermal expansion, etc., will
        most likely not cause contact with other pipes, supports,
        equipment, nor components. (As best as can be determined after
        installation, but before initial operation.)

    e.  Sliding or rolling supports are provided with material and/or
        lubricants suitable for the environment and compatible,
        sliding-contact surfaces.

3.  Select at least four small‑bore or instrumentation lines that have
    been designed by a simplified seismic criterion. Determine, by
    visual examination, whether the following conditions meet applicable
    requirements:

    a.  The functional restraint direction is proper and in accordance
        with the design drawings.

    b.  The gaps between the piping and support appear adequate to allow
        thermal axial expansion.

    c.  The gaps between the piping and support are not excessive for
        dynamic loads.

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e.  [Component Supports]{.underline}. Select a total of five to 10
    installed component supports, including at least two multiple pipe
    supports, and ascertain, by visual examination, whether the
    following conditions exist:

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1.  Component-support elements are located and installed as specified on
    the drawings.

2.  The surfaces of welds meet applicable Code requirements. Check weld
    surfaces for grooves, abrupt ridges, valleys, undercuts, cracks,
    discontinuities, or other detrimental indications that appear to
    exceed Code limitations.

3.  Materials used in the construction of the component supports have
    been certified by reviewing material-test reports or a certificate
    of compliance.

4.  Where special bolting materials are specified, check for compliance
    with specifications including preload (torquing) requirements.

5.  Support clearances are as specified.

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f.  [As‑Built Configuration]{.underline}.

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1.  Select three to seven as‑built/final design-pipe-support structural
    drawings and compare several selected supports with the actual
    installation.

> Discrepancies observed may result from in‑process changes, such as
> those initiated in the field. If in‑process changes are involved,
> determine whether the licensee has properly controlled and documented
> these changes on a current basis for engineering review, approval, and
> subsequent incorporation into final as‑built drawings.

2.  Select a total of three to seven pipe-anchor locations on the
    as‑built drawings \[piping (2‑1/2 inches) in diameter and greater\].
    These anchor locations are designed to restrict individual pipe
    movement in all directions. Visually examine these anchors and
    compare them with the drawings, to ensure agreement as to their
    location and function.

02.04 [Review of Records]{.underline}.

a.  Review licensee and contractor requirements covering the span of
    records for piping supports and restraints. Determine the initiation
    point for those records sampled and, importantly, the effectiveness
    of those responsible for reviewing the records for accuracy and
    completeness and ensuring that the recorded information meets
    documentation requirements. To determine the effectiveness of the
    licensee or contractor system for documenting work in this area,
    review the records for three dynamic pipe supports or restraints and
    three fixed pipe supports in the following areas:

    1.  Type and classification of pipe support or restraint comply with
        appropriate drawings and specifications.

    2.  Location, spacing, and critical clearances meet licensee=s
        specifications and have been verified by licensee QA/quality
        control (QC) inspection.

    3.  The required scope of licensee QA/QC inspections was met.

    4.  Weld identification/location corresponds to respective weld
        card, drawing, work order, or other welding documentation.

    5.  Welding material used corresponds to the material specified.

    6.  Welders were qualified to the welding procedures used and
        welding procedures were qualified in accordance with Code
        requirements.

    7.  The records confirm that for welding activities where
        attachments are welded directly to piping, the welding
        specifications used are the same or equivalent to the ones used
        for pipe welding, including preheat, postweld‑heat treatment,
        and NDE examinations.

    8.  The examination records are complete and meet the inspection
        and/or NDE procedure requirements.

b.  Review the licensee/contractor system for reporting and disposition
    of non-conforming materials, parts, and components \-- and process
    or installation deficiencies, associated with pipe supports and
    restraints. Review approximately five to 10 nonconformance/deviation
    reports to determine whether:

    1.  The records adequately document current status of
        nonconformances and deviations.

    2.  The records are legible, complete, and indicate that reports are
        promptly reviewed by qualified personnel for evaluation,
        disposition, and prioritization.

    3.  The records are routinely being processed through established
        channels for resolution of the immediate problem, as well as for
        generic implications.

    4.  The records are being properly identified, stored, and can be
        retrieved in a reasonable time.

    5.  Nonconformance reports include the status of corrective action
        or resolution.

    6.  Resolution of nonconformances is appropriate and demonstrates
        good engineering practice.

c.  To determine whether qualified licensee, contractor, craft, and
    inspection personnel are being used on those special processes
    associated with pipe support and restraint installation work, review
    a sampling of personnel qualification records (four to six) covering
    several different disciplines as follows:

    1.  Determine whether a system of personnel qualification records,
        meeting stated requirements, exists and is being maintained in
        current status.

    2.  Determine if the records are sufficient to reasonably support
        qualification in terms of certification, experience,
        proficiency, training, testing, etc., as applicable.

    3.  Review the action taken by responsible licensee/contractor
        organizations to independently authenticate the employment,
        training, and qualification history of newly hired personnel.

d.  Review relevant portions of licensee and contractor audit reports
    concerning the installation of pipe supports and restraints. Review
    two to four reports to determine whether:

    1.  The required audits have been performed in accordance with
        schedule and functional areas in established audit plans.

    2.  Audit findings have been reported in sufficient detail to permit
        a meaningful assessment by those responsible for corrective
        action, final disposition, and trending.

    3.  The licensee/contractor has taken proper follow-up action on
        those matters in need of correction.

88143‑03 INSPECTION GUIDANCE

[General Guidance]{.underline}.

-   This procedure pertains to all pipe supports and restraints in SC-I
    and SC-II systems. Pipe supports include pipe hangers, restraints,
    supports, shock and sway suppressors, etc., that directly support
    the pipe. Pipe whip restraints, such as structural steel or concrete
    barriers that do not normally contact the pipe, are
    [not]{.underline} covered by this procedure. Additionally, it should
    be noted that some welding inspections are included in this
    inspection procedure (IP). Assistance to the inspectors in this area
    may be required. This matter should be considered during inspection
    preparation.

-   Applicable portions of the CAR and Quality Assurance Plan (QAP)
    should be reviewed, to determine licensee commitments, regarding
    construction and inspection requirements, before performing this
    inspection. The inspectors should then use these CAR and QAP
    sections during the review of the licensee=s implementing
    construction specifications, drawings, work procedures, and QA
    implementing procedures. Most of this review can be completed during
    inspection preparation, after these procedures have been obtained
    from the site. The NRC inspectors also should review applicable
    portions of the applicable Code.

-   It is recognized that the construction installation work associated
    with this IP may be carried out over an extended period of time,
    which may require a series of inspections to fully complete this
    procedure. Additionally, some licensee contracting arrangements may
    be such that several different contractors will be involved in the
    installation work. If this is the case, selected parts of this
    procedure may have to be repeated, to adequately cover the total
    effort. Regional evaluations and appropriate adjustments to this
    procedure are necessary to ensure inspection continuity, during the
    extended period of time involved, and to accommodate the various
    contracting arrangements encountered.

-   Considerable impact on the development and structure of this IP has
    resulted from a series of problems NRC has encountered at nuclear
    power plants in the area of pipe supports and restraints. These
    problems and concerns are best summarized in Inspection and
    Enforcement (IE) bulletins, circulars, and information notices that
    have been issued over the years. These documents are listed in the
    reference section below. Information contained in these issuances
    may be beneficial to the inspectors during implementation of this
    IP.

-   Findings from this inspection activity should address each element
    as being satisfactory, being unresolved and requiring resolution, or
    being in violation and requiring correction. When significant
    inadequacies are identified, indicating weakness within the
    responsible organization, the inspectors should inform cognizant
    Regional supervision. The issue should be addressed also at the
    appropriate level of licensee management.

-   Particular attention should be given to the traceability of material
    and equipment, to prevent the use of incorrect or defective
    materials, parts, and components. The inspectors should review 10
    CFR Part 50, Appendix B, Criterion VIII, AIdentification and Control
    of Materials, Parts and Components,@ and applicable codes and
    specifications. The inspectors should verify that the licensee has
    established measures for the identification and control of
    materials, parts, and components, and for traceability to the
    approved design basis and to the source. The inspectors should
    assure that required identification of the item is maintained by
    heat number, part number, serial number, or other appropriate means,
    either on the item or on records traceable to the item, as required,
    and that required markings are on the item.

> The inspectors should note markings on material and equipment and
> verify that the markings represent material and equipment as specified
> by the design drawings and specifications. In the case of fasteners,
> compliance with the applicable material specification \[e.g.,
> (American Society for Testing and Materials or American Society of
> Mechanical Engineers(ASME)), material and grade\] should be verified
> by required markings on bolts and nuts and certified material test
> reports or certificates of conformance, as required by the applicable
> procurement drawings and specifications, and/or by the applicable
> codes and specifications. In the case of vendor‑supplied equipment
> assemblies containing fasteners, samples should be inspected to verify
> compliance with approved vendor drawings and specifications, and other
> information, such as materials used for equipment qualification tests
> and/or analyses. Caution should be exercised to ensure that the
> required markings on material and equipment, including fasteners, not
> only exist, but that the markings indicate the correct material and
> grade, as specified.

03.01 [Specific Guidance]{.underline}.

a.  [Inspection Requirements 02.01a and b]{.underline}. Audit procedures
    and/or checklists for pipe supports and restraints systems should
    provide for checks of each type of system used and should, if
    possible, include representative samples from all suppliers of
    components. Audit procedures or criteria should address the
    qualifications needed by those performing the audits.

b.  [Inspection Requirement 02.01f]{.underline}. The inspectors should
    determine specific steps the licensee has taken, or plans to take,
    to ensure that only qualified personnel are permitted to perform
    work associated with the installation of pipe supports and
    restraints. This effort may tie in with the review of the licensee=s
    audit plans specific to this area of work.

c.  [Inspection Requirement 02.02b2]{.underline}. Most of the welding,
    cutting, and forming operations covered by this procedure pertain to
    component-support structures, support members, and brackets, and do
    not require pre‑heat‑treatment nor postweld heat treatment. However,
    those pipe supports, support flanges, or support brackets that are
    directly welded to Quality Level (QL-1) pipe may be subject to
    preheat and/or postheat treatment. Applicable heat-treatment
    procedures are necessary for this type of installation. Records of
    heat treatment (time, temperature) must be generated and reviewed
    for Code compliance.

d.  [Inspection Requirement 02.03b2]{.underline}. Refer to IE Bulletin
    No. 79‑02 (and revisions), APipe Support Base Plate Designs Using
    Concrete Expansion Anchor Bolts,@ for general information.

e.  [Inspection Requirement 02.03e3]{.underline}. The material
    certificate and identification should meet the requirements of the
    applicable Code/Standard.

f.  [Inspection Requirement 02.03f]{.underline}. The intent is to
    determine whether pipe supports and restraints are being installed
    according to properly approved drawings \-- either the original
    design drawings or properly approved revisions \-- and, if revisions
    are in process, that these changes are properly handled in
    accordance with established procedures.

> Appropriate standards can be used as a guide in this area. For
> example, ASME NQA-1 requires that where changes to previously verified
> designs have been made, design verification shall be required for the
> changes, including evaluation of the effects of those changes on the
> overall design.
>
> Further, ASME NQA-1 states that records that correctly identify the
> as‑built condition of items in the nuclear facility shall be
> maintained and stored for the life of the particular item, while it is
> installed in the facility. Additionally, 10 CFR Part 50, Appendix B,
> Criterion III, states in part, that design and field changes shall be
> subject to the same design-control procedures as the original design.
>
> Changes may be made to these supports, during construction, that are
> different from the original CAR design. Such changes will result in
> the accumulation of various types of design-change documents and/or
> marked‑up drawings. Since these changes reflect as‑built conditions,
> they should be adequately controlled so they will be readily available
> for use with affected original design documents, during future
> evaluation on the effect other design changes have on the overall
> design. Additionally, the as‑built process should result in proper and
> timely updating of the original/master drawings and specifications to
> incorporate such changes.

g.  [Inspection Requirement 02.04]{.underline}. The inspectors should
    bear in mind that NRC=s inspection sample covers only a very small
    portion of the records involved. Thus, substantive errors, or
    departure from requirements identified in NRC=s sample, raise the
    issue of whether the licensee is adequately controlling the process.
    In this connection, particular attention should be given to
    reviewing the adequacy of those records dealing with the
    qualification of personnel and QA audits. Problems noted in these
    two areas should be viewed as prime indicators of the licensee=s
    involvement in the work and the effectiveness with which the
    licensee maintains control over the work in progress.

03.02 [Prevalent Errors and Concerns]{.underline}. This section is
included to provide background on past problems of a generic nature,
that have been identified at nuclear power facilities. This section is
for information only.

a.  Welders not properly qualified to applicable Code, and records not
    properly maintained.

b.  Personnel-qualification records, including indoctrination, training,
    examinations, and certifications, either not being maintained,
    invalid, or nonexistent for some employees.

c.  Field-design work (redesign, modifications) not being processed
    through appropriate review and approval route.

d.  Nonconformance reports not being processed fully in accordance with
    established procedures.

e.  Personnel assigned to licensee audit function not appropriately
    trained in the assigned audit areas nor independent from areas
    audited.

f.  Licensees and contractors conduct some audits on schedule, but may
    postpone or omit others entirely. Although audits are carried out to
    some extent and may be adequately performed, in many instances the
    audit findings and recommendations are ignored or are filed without
    appropriate consideration or follow-up action.

g.  Refer to Appendix A of IE Bulletin 79‑14, for additional problem
    areas. Other IE bulletins, circulars, and information notices listed
    below in the reference section of this IP contain additional
    information about problem areas.

03.03 [Definitions]{.underline}.

[Dynamic Pipe Supports]{.underline}. A pipe-support assembly or
restraint, with a hydraulic or mechanical control unit-designed to
prevent unrestrained pipe motion during an earthquake \-- or vibratory
pipe movements brought on by the actuation of a water hammer, steam
hammer, pump/start/stop, or safety and relief valve. Thermal expansion
of piping is not restrained by dynamic supports (snubbers, shock
suppressors, etc.).

[Rigid, Constant, and Variable Type Supports]{.underline}. Pipe support
assemblies used for mounting pipes [without]{.underline} hydraulic or
mechanical control units (hangers, base supports, saddle supports,
spring hangers, sliding and rolling supports, etc.).

[Component Supports]{.underline}. Metal elements that transmit loads
between plant components and the building structure and whose function
includes carrying the weight of components or providing them with
structural stability.

[Component Standard Supports]{.underline}. Pipe-support assemblies
consisting of one or more units usually referred to as catalog items and
generally mass-produced (anchors, guides, restraints, rolling or sliding
supports, spring hangers, snubbers, sway braces, vibration dampeners,
clamps, etc.).

88143‑04 RESOURCE ESTIMATE

This IP is expected to take, on the average, 32 to 64 hours of
inspection effort per major contractor. The construction installation
work associated with this procedure may be carried out over an extended
period of time, which may require a series of inspections, to fully
complete this procedure. Additionally, some licensee
contracting-arrangements may be such that several different contractors
will be involved in the installation work. If this is the case, this
procedure may have to be repeated, in order to adequately cover the
total effort.

88143‑05 REFERENCES

Duke, Cogema, Stone and Webster, AMixed-Oxide Fuel Fabrication Facility,
MOX Project Quality Assurance Plan (MPQAP),@ Docket Number 070-03098,
under U.S. Department of Energy Contract DE-AC02-99-CH10888, latest
revision accepted by the NRC.

Duke, Cogema, Stone and Webster, AMixed Oxide Fuel Fabrication Facility
Construction Authorization Request,@ latest revision accepted by NRC.

U.S. Code of Federal Regulations, Title 10, Part 50, Appendix B,
AQuality Assurance Criteria for Nuclear Power Plants and Fuel
Reprocessing Plants.@

U.S. Code of Federal Regulations, Title 10, Part 70, ADomestic Licensing
of Special Nuclear Material.@

U.S. Code of Federal Regulations, Title 10, Part 21, AReporting of
Defects and Noncompliance.@

American Society of Mechanical Engineers, ASME NQA-1-1994, Parts I and
II, AQuality Assurance Requirements for Nuclear Facility Applications,@
as revised by the ASME NQA-1a-1995 Addenda.

American Society of Mechanical Engineers, ASME B31.3-2002, AProcess
Piping.@

American Welding Society, AWS D1.1, AStructural Welding Code.@

American Society of Civil Engineers, ASCE 4-98, AStandard Seismic
Analysis of Safety-Related Nuclear Structures.@

U.S. Nuclear Regulatory Commission, Regulatory Guide 1.28, AQuality
Assurance Program Requirements (Design and Construction),@ Revision 3.

U.S. Nuclear Regulatory Commission, Regulatory Guide 1.61, ADamping
Values for Seismic Design of Nuclear Power Plants,@ October 1973.

American National Standards Institute/American Institute of Steel
Construction, (ANSI/AISC) N690-1994, ASpecification for the Design,
Fabrication, and Erection of Steel Safety-Related Structures for Nuclear
Facilities (SC I).@

The following references describe problems at nuclear power facilities
and are for background information only:

Inspection and Enforcement Bulletin, (IE) Bulletin 73‑03 (and revision),
ADefective Hydraulic Shock Suppressors and Restraints.@

Inspection and Enforcement Bulletin, (IE) Bulletin 73‑04 (and revision),
ADefective Bergen‑Paterson Hydraulic Shock Absorbers.@

Inspection and Enforcement Bulletin, (IE) Bulletin 73‑07, AFailure of
Structural or Seismic Support Bolts on Class 1 Components.@

Inspection and Enforcement Bulletin, (IE) Bulletin 74‑03, AFailure of
Structural or Seismic Support Bolts on Class 1 Components.@

Inspection and Enforcement Bulletin, (IE) Bulletin 75‑05, AOperability
of Hydraulic Shock and Sway Suppressors.@

Inspection and Enforcement Bulletin, (IE) Circular 76‑05, AHydraulic
Shock and Sway Suppressors.@

Inspection and Enforcement Bulletin, (IE) Circular 76‑07, ADamaged
Components of Bergen‑Paterson Hydraulic Test Stand.@

Inspection and Enforcement Bulletin, (IE) Bulletin 78‑10,
ABergen‑Patterson Hydraulic Shock Suppressors Accumulator Spring Coils.@

Inspection and Enforcement Bulletin, (IE) Information Notice 79‑01,
ABergen‑Paterson Hydraulic Shock and Sway Arrestors Reported Failures.@

Inspection and Enforcement Bulletin, (IE) Bulletin 79‑02 (and
revisions), APipe Support Base Plate Designs Using Concrete Expansion
Anchor Bolts.@

Inspection and Enforcement Bulletin, (IE) Bulletin 79‑07, ASeismic
Stress Analysis of Safety‑Related Piping.@

Inspection and Enforcement Bulletin, (IE) Information Notice 79‑10,
ANonconforming Pipe Support Struts.@

Inspection and Enforcement Bulletin, (IE) Bulletin 79‑14 (and
revisions), ASeismic Analysis for As‑Built Safety‑Related Piping
Systems.@

Inspection and Enforcement Bulletin, (IE) Circular 79‑25 (and
supplement), AShock Arrestor Strut Assembly.@

Inspection and Enforcement Bulletin, IE Information Notice 79‑28,
AOverloading of Structural Elements Due to Pipe Support Loads.@

Inspection and Enforcement Bulletin, (IE) Bulletin 81‑01 (and revision),
ASurveillance of Mechanical Snubbers.@

Inspection and Enforcement Bulletin, (IE) Circular 81‑05, ASelf Aligning
Rod End Bushing for Pipe Supports.@

Inspection and Enforcement Bulletin, (IE) Information Notice 82‑12,
ASurveillance of Hydraulic Snubbers.@

END

ATTACHMENT 1

Revision History for IP 88143

+--------+--------+------------------------+-----+-------+-------------+
| Comm   | Issue  | Description of Change  | Tr  | Tra   | Comment     |
| itment | Date   |                        | ain | ining | Resolution  |
| Tr     |        |                        | ing | Compl | Accession   |
| acking |        |                        | Nee | etion | Number      |
| Number |        |                        | ded | Date  |             |
+--------+--------+------------------------+-----+-------+-------------+
| N/A    | 07     | IP 88143 is a newly    | N   | N/A   | ML071720296 |
|        | /25/07 | issued procedure.      | one |       |             |
|        |        | Issued for MOX         |     |       |             |
|        | CN     | inspection program to  |     |       |             |
|        | 07-023 | improve effectiveness  |     |       |             |
|        |        | and efficiency by      |     |       |             |
|        |        | incorporating and      |     |       |             |
|        |        | consolidating          |     |       |             |
|        |        | inspection             |     |       |             |
|        |        | requirements involving |     |       |             |
|        |        | pipe support and       |     |       |             |
|        |        | restraints inspection  |     |       |             |
|        |        | activities.            |     |       |             |
+--------+--------+------------------------+-----+-------+-------------+
|        |        |                        |     |       |             |
+--------+--------+------------------------+-----+-------+-------------+
|        |        |                        |     |       |             |
+--------+--------+------------------------+-----+-------+-------------+