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ASME BOILER AND PRESSURE VESSEL CODE
Proposed Revisions Currently Available For Public Review
( Comment period for proposed revisions displayed on this site coincide with ANSI public review dates )

Public review is not required for Code Cases, however, comments on the proposal may be submitted for committee consideration. Comments should be addressed to the Staff Contact indicated for the particular proposal.
For Intent Interpretations listed, only the proposed revision portion of the proposal is subject to public review.
Record#: BPV Code Sections Affected by the Proposed Revision Proposal: Staff Contact: Comment Period End Date: File:

- 20XX , Rules for Construction of Nuclear Facility Components

11-1383
BPVC-III NB
Determine Whether to Incorporate CC N-631 in NB-2300 for Alternative Fracture Toughness Reference Index Temperature, RTTo. Allyson Byk 11/26/18 Public Review Draft File
11-2161
BPVC-III-NCA
add a definition for Certified Design Report Summary Allyson Byk 11/26/18 Public Review Draft File
13-263
BPVC-III NB
Change NB-5283(a) and delete NB-5360 related to PSI of steam generator tubing to be consistent with Section XI changes made in approved record 10-129. Allyson Byk 11/26/18 Public Review Draft File
14-259
BPVC-III NB
Delete "using full penetration welds" from the 4th sentence of NB-4433. Allyson Byk 11/26/18 Public Review Draft File
14-315
BPVC-III-NCA
Update Table NCA-7100 - 2 as indicated: Update allowable edition of TR-3 to read, "2008 through 2017". Update allowable edition of TR-4 to read, "2008a through 2017". Allyson Byk 11/26/18 Public Review Draft File
15-1117
BPVC-III-2
Five (5) items are proposed as provided in proposal file for a ballot. The proposal file for five items provides changes to and/or new additions of the Code language to include ASTM A615 Grades 75 and 80 and ASTM A706 Grade 80 reinforcement for containment construction. Allyson Byk 11/26/18 Public Review Draft File
15-1687
BPVC-III NE
BPVC-III NG
BPVC-III-3
BPVC-III-A
Revise the term "load stress" used in BPV III NE-3227.1(b), BPV III NG-3227.1(b), BPV III WB- 3227.1(b) to the defined term "load-controlled stress". In XIII, align the spelling with the definition. Allyson Byk 11/26/18 Public Review Draft File
15-2764
BPVC-III-A
Precautions and recommendations are added to address possible in-plane fluid elastic instability for structures like steam generator U-tubes Allyson Byk 11/26/18 Public Review Draft File
16-221
BPVC-III-A
Propose adding a new Nonmandatory Appendix addressing guidance for developing Division 5 Design Specifications. Allyson Byk 11/26/18 Public Review Draft File
16-1101
BPVC-III NG
To incorporate Interpretation 16-223, revise NG-1132(b) to define that mechanical fasteners connecting an internal structure to a core support structure shall be considered as part of the internal structure. Also incorporate feedback from SG-CD on attachment welds. Allyson Byk 11/26/18 Public Review Draft File
16-1134
BPVC-III-5
Change Class designator for metallic core support structures from Class A to a unique designator (Class SM) for clarity. Allyson Byk 11/26/18 Public Review Draft File
16-1135
BPVC-III-5
Change references to "Class A" to "Class SN" and support structures to components Allyson Byk 11/26/18 Public Review Draft File
16-1208
BPVC-III ND
Delete the requirement to PWHT welds in UNS C95400 castings Allyson Byk 11/26/18 Public Review Draft File
16-1844
BPVC-III-2
ASME Section III Table CC-2231.7.1-1, Table CC-2231.7.2-1 and Table CC-2231.7.5-1 revised to align with ACI 318-14 Allyson Byk 11/26/18 Public Review Draft File
16-1910
BPVC-III-2
The Section 5.10.9 of ACI 349-13 be included in ASME 2013 BPVC Section III Division 2 to allow use of Self Compacting (consolidating) Concrete (SCC) on a limited basis. 5.10.9 — Where conditions make consolidation difficult, or where reinforcement is congested, batches may be re-proportioned to exclude the larger of the coarse aggregate gradations. Where the coarse aggregate is furnished in only one gradation, batches of mortar containing approximately the same proportions of cement, sand, and water may be used. Such substitutions shall be limited to only those made in limited areas of specific difficulty and subject to the approval of the engineer as to location, mix proportioning, or alteration of this mix. Allyson Byk 11/26/18 Public Review Draft File
16-1926
BPVC-III NF
Revise NF-5215 to include exceptions to radiographic examinations. Allyson Byk 11/26/18 Public Review Draft File
16-2584
BPVC-III NF
Add clarifications and changes to NF-3324.6 and NF-4721(b) to bring the bolting minimum edge distance and bolting oversized hole size requirements in alignment with the requirement of AISC. Allyson Byk 11/26/18 Public Review Draft File
16-2627
BPVC-III-5
Update and extend the allowable stress values for Grade 91 Allyson Byk 11/26/18 Public Review Draft File
16-2964
BPVC-III NB
BPVC-III NC
BPVC-III ND
BPVC-III NE
BPVC-III NF
BPVC-III NG
BPVC-III-2
BPVC-III-3
BPVC-III-NCA
Add the 2006 Edition of SNT-TC-1A back into Table NCA-7100-2, Table NCA-7100-3, and Table WA-7100-2. Update the endnotes in NB/NC/ND/NE/NF/NG, Division 2, and Division 3 to include provisions for the use of SNT-TC-1A (2006) or (2011). Allyson Byk 11/26/18 Public Review Draft File
16-2992
BPVC-III-A
Editorially Revise Appendices XI, E, & L for editorial consistency. Allyson Byk 11/26/18 Public Review Draft File
16-3024
BPVC-III-A
ASME BPVC, Section III, Appendix XXIII-1223(b)(2), add an end note identifying/explaining "Washington Accord: 1989" Allyson Byk 11/26/18 Public Review Draft File
16-3026
BPVC-III NF
Remove NF-3322.1(c)(1)(-c) for axially loaded bracing and secondary members where kl/r exceeds 120. Allyson Byk 11/26/18 Public Review Draft File
17-718
BPVC-III-2
Revisions to : CC-2432, CC-2435, CC-2440, CC-2436, CC-2440-CC-2445, CC-2453, CC-2454, CC-2461 Allyson Byk 11/26/18 Public Review Draft File
17-742
BPVC-III-2
Possible elimination of OBE load combinations. Allyson Byk 11/26/18 Public Review Draft File
17-1208
BPVC-III NC
BPVC-III ND
Revision of Figures NC/ND-3673.2(b)-2 to delete r1 and r3 and to include the definition of L1, Tb, r2 and rp in the legends, and revision of General Note (a) of Table NC/ND-3673.2(b)-1 to change the symbol of theta into theta n. Allyson Byk 11/26/18 Public Review Draft File
17-1299
BPVC-III NC
Revise NC-3000 to reflect Interpretation III-1-13-59 Allyson Byk 11/26/18 Public Review Draft File
17-1863
BPVC-III NB
Revise NB-4424.2 (c) (2) to clarify that these marks shall be repeated along the weld length at intervals of not more than 1 ft (0.3 m) for vessel to nozzle welds, and at intervals of not more than3 ft (1 m) for all other vessel Allyson Byk 11/26/18 Public Review Draft File
17-1880
BPVC-III NB
BPVC-III NC
BPVC-III ND
BPVC-III NE
Question: Is it the intent of NB/NC/ND/NE-2573.5 that casting section thickness be used to determine the requirement for radiographic examination of repair welds? Proposed Reply: Yes PROPOSED CODE REVISION: See Proposal file for revision. Allyson Byk 11/26/18 Public Review Draft File
17-1931
BPVC-III NG
Change terminologies using "service conditions", to "service loadings". Allyson Byk 11/26/18 Public Review Draft File
17-2025
BPVC-III NE
BPVC-III NG
BPVC-III-3
BPVC-III-A
Question: In NE-3232.3(c), NG-3232.3(c), WB-3232.4(c), and XIII-4230(c), is it the intent of the Code that the specified fatigue strength reduction factors for threaded members are applicable only to those portions of a threaded member in which the stresses are affected by the presence of the threads? Proposed Reply: Yes. Code Change included in the proposal file. Allyson Byk 11/26/18 Public Review Draft File
17-2041
BPVC-III NB
BPVC-III NC
Question: Is it the intent of NB/NC-4337(h) to limit the recording devices to chart recorders? Proposed Reply: No. The associated proposed code revision to NB/NC is shown in the proposal file. Allyson Byk 11/26/18 Public Review Draft File
17-2051 Question: Is it the intent that Code Cases N-801-1 (2013 Edition) and N-801-2 only apply to organizations other than the N-Certificate Holder that originally stamped the component being repaired? Proposed Reply: No; See Code Case N-801-3. Allyson Byk 11/26/18 Public Review Draft File
17-2058
BPVC-III-NCA
Update Section III Table NCA-7100-1 to incorporate the latest published editions of the reference standards Allyson Byk 11/26/18 Public Review Draft File
17-2149
BPVC-III-NCA
Revised Question: Is it the intent of BPVC, Section III, NCA-4134.7(g) (2017 Edition) to also permit the use of NCA-3127? Proposed Reply: Yes. Allyson Byk 11/26/18 Public Review Draft File
17-2188
BPVC-III-A
Revise XIII-3100 Allyson Byk 11/26/18 Public Review Draft File
17-2190
BPVC-III-A
Revise A-8120 to include references to Figure A-8120-1 Allyson Byk 11/26/18 Public Review Draft File
17-2325
BPVC-III NB
BPVC-III NC
BPVC-III NE
BPVC-III NF
BPVC-III NG
BPVC-III-3
Revise Note (1) of Table NB/NC/NE/NF/NG/WB/WC/WD-4622.7(b)-1 to replace "base material" with "thicker of the base materials" Allyson Byk 11/26/18 Public Review Draft File
17-2456
BPVC-III NF
Revise the Design and Level A service condition allowable stress criteria in tension for pin connected members. Allyson Byk 11/26/18 Public Review Draft File
17-2642
BPVC-III-3
WB/WC/WD-2130 editorial changes for consistency. Allyson Byk 11/26/18 Public Review Draft File
17-2643
BPVC-III-3
Article 3000 editorial and clarification changes Allyson Byk 11/26/18 Public Review Draft File
17-2644
BPVC-III-3
BPV Code, Section III, Division 3, WC-4130(d) first sentence modified to delete "are loaded" and replace with "are to be loaded". Allyson Byk 11/26/18 Public Review Draft File
17-2650
BPVC-III-3
Add a new Nonmandatory Appendix that provides guidance for developing Division 3 Design Specifications and Fabrication Specifications. Allyson Byk 11/26/18 Public Review Draft File
17-2652
BPVC-III-A
Revise XIII-2200 to ensure wording for interpolation is clear Allyson Byk 11/26/18 Public Review Draft File
17-2659
BPVC-III-5
HHB for approval by BPV III Allyson Byk 11/26/18 Public Review Draft File
17-2810
BPVC-III NB
NB-4424.2 Preservice Examination (a) The surface finish on the side of the pipe (OD or ID) where a preservice ultrasonic examination is to be performed shall be 250 ?in. (6.3 ?m) Ra or better on at least one side of the weld. The extent (distance) of this surface finish requirement is from the edge of the weld for a distance of at least 2t (see end note 16) plus 4 in. (100 mm) or 6 in. (150 mm), whichever is greater, or as stated in the Design Specification. If access to both sides of the weld is required for preservice examination for austenitic stainless steel pipe to pipe welds, the surface finish requirement shall be met on both sides of the weld. EndNote (16): t equals nominal wall thickness Allyson Byk 11/26/18 Public Review Draft File
17-3081
BPVC-III-NCA
Correct Registered Professional Engineer to read Certifying Engineer in NCA-3784.2 (1 place) and NCA-3784.5 (2 places) Allyson Byk 11/26/18 Public Review Draft File
17-3216
BPVC-III-3
Revise Section III, Division 3 in numerous areas Allyson Byk 11/26/18 Public Review Draft File
18-5
BPVC-III NC
BPVC-III ND
Revise NC and ND 3800 as required to eliminate metrication inconsistencies. Allyson Byk 11/26/18 Public Review Draft File
18-122
BPVC-III NB
BPVC-III NE
BPVC-III-3
Delete '1.25 tn' from the statement in NB-3352.4(d)(4), NE-3352.4(d)(4), and WB-3252.4(f)(4) Allyson Byk 11/26/18 Public Review Draft File
18-206
BPVC-III-A
Revise Section III, Appendix XXVI to clarify flange adapter requirements, remove redundant test requirement, resolve regulator condition, clarify data acquisition requirements, correct error in electrofusion qualification requirements. Allyson Byk 11/26/18 Public Review Draft File
18-250
BPVC-III-2
Revise definition of OBE Allyson Byk 11/26/18 Public Review Draft File
18-281
BPVC-III-A
Revise definition as shown in proposal file Allyson Byk 11/26/18 Public Review Draft File
18-282
BPVC-III NF
BPVC-III NG
BPVC-III-3
BPVC-III-A
Make the last sentence of sub-subparagraph (b) a separate sub-sub paragraph as shown in the proposal file. Allyson Byk 11/26/18 Public Review Draft File
18-309
BPVC-III ND
4213.1 Exemptions Para (b) in NC adds the words which are not in ND: “required in either NC-2211 or NC-4121.2” after the words “test coupons” No basis for the difference Add NC language to ND Allyson Byk 11/26/18 Public Review Draft File
18-355
BPVC-III-3
BPVC-III-5
BPVC-III-NCA
Add 2005 and 2017 reference editions of ISO/IEC 17025 to Tables NCA-7100-2, NCA-7100-3. WA-7100-2, and HAB-7100-1 and delete 2005 reference edition from paragraphs in NCA-3126, NCA-3127, NCA-4255.3(c), NCA-4354.3, NCA-4255.3(d), WA-3123, WA-3124, HAB-3126, HAB-3127, HAB-3855.3(c), HAB-3855.3(d) Allyson Byk 11/26/18 Public Review Draft File
18-402
BPVC-III-2
Revisions to : CC-2243, CC-2435, CC-2436, CC-2442, Article D2-II-1000 and NCA-7100-3 Allyson Byk 11/26/18 Public Review Draft File
18-778
BPVC-III-5
Revise BPVC, Section III, Division 5, Subsection HA Subpart B - General Requirements - Graphite Materials to include Ceramic Composite Materials and relocate HAB-3850 to HAB-4550. Allyson Byk 11/26/18 Public Review Draft File
18-1086
BPVC-III-5
Update HAA-2120 to reflect the new Class SM core support structures classification. Allyson Byk 11/26/18 Public Review Draft File
18-1172
BPVC-III NB
Provide equation for y' in NB-3653.7 that is consistent with previous NB-3222.5/current Appendix XIII-3430 for linear distributions for the entire range of x. Allyson Byk 11/26/18 Public Review Draft File
18-1192
BPVC-III NF
Question 1: Is it the intent that Note 3 of Table NF-3221.2-1 shall only be imposed on the primary membrane stress intensity limit for Service Level D? Proposed Reply: Yes. Question 2: Is it the intent that Note 3 of Table NF-3251.2-1 shall only be imposed on the primary membrane stress limit for Service Level D? Proposed Reply: Yes. Code Markup in Proposal File. Allyson Byk 11/26/18 Public Review Draft File
18-1203
BPVC-III-A
Clarify XXVI-2400 and XXVI-4130 that no repair of material may be performed until after delivery to the fabricator or installer. Allyson Byk 11/26/18 Public Review Draft File
18-1208
BPVC-III NC
BPVC-III NE
Adopt editor suggestions for record 14-1013 Allyson Byk 11/26/18 Public Review Draft File
18-1211
BPVC-III-A
Editorially reorganize the articles revised by record 17-152 Allyson Byk 11/26/18 Public Review Draft File
18-1338
BPVC-III-2
Proposed Editorial Changes from 2017 Edition Allyson Byk 11/26/18 Public Review Draft File
18-1360
BPVC-III-2
The scope of this item is a follow-up to record 14-1492 to address the intent of the proposal and comments received from BPVC SC-III Div. 2 ACI-ASME Joint Technical Committee. The proposal is to update the code on Mechanical Couplers to include industry slip criteria. In parallel to this action, all code cases for mechanical splices have been updated in parallel to assure alignment with the most current version of ASME BPVC Section III, Division 2. Allyson Byk 11/26/18 Public Review Draft File
18-1400
BPVC-III NB
Revise Figure NB-1132.2-4 to remove partial penetration weld to reactor vessel internal surface. Allyson Byk 11/26/18 Public Review Draft File
18-1446
BPVC-III-NCA
Question: : Is it the intent that the requirements defined in NCA-5125(i) require the Supervisor to audit each and every Certifying Engineer’s records at least once each year? Proposed Reply: No. Proposed Code Change: Revise BPVC Section III, NCA -5125(i) as shown in the proposal file to clarify Supervisor’s responsibilities Allyson Byk 11/26/18 Public Review Draft File
18-1448
BPVC-CC-NC
Approve CC N-884 editorial revision based on comments from the editorial staff and editorial additions for consistency. Allyson Byk 11/26/18 Public Review Draft File
18-1506
BPVC-III NB
BPVC-III NC
BPVC-III ND
BPVC-III NG
Editorial revisions to approved record 12-1461 on NB/ND/NG-4422 and NC-4423 Allyson Byk 11/26/18 Public Review Draft File
18-1545
BPVC-III-2
Revision to CC-3542 Allyson Byk 11/26/18 Public Review Draft File
18-1597
BPVC-III-A
Add new Supplement to Appendix XIII Allyson Byk 11/26/18 Public Review Draft File
18-1669
BPVC-III-2
BPVC-III-NCA
This record changes the revision year of standards to the current year for those standards where the current year differs from the year referenced in the 2017 edition and where it was determined that the current year of the standard is still acceptable to be referenced in the Code. See Explanation for more information. The determination of acceptability of the current standard revisions was made by at least two people from the working groups for each standard. In addition to changing existing references to the current year, additional references found in Division 2 that were not included in the table were added to the table and references not found in Division 2 or portions of NCA applicable to Division 2 were deleted from the table. Article D2-C-4000 is also being revised as per the proposed changes in Table NCA-7100-3. See Explanation for more information. Allyson Byk 11/26/18 Public Review Draft File
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