RESNET® releases draft PDS-02 of RESNET 1550, Embodied Carbon, for public review and comment. The standard provides a consistent methodology for the calculation and reporting of the embodied carbon of dwelling and sleeping units. The standard defines the scope for calculating embodied carbon and a methodology for conducting the calculations that uses the same modeling data and processes and reporting employed by standard ANSI/RESNET/ICC 301. This second draft of the standard has been revised in response to public comment on the first draft, PDS-01. Comments will be accepted on the changes to draft PDS-01 as shown in draft PDS-02. Public comments will be accepted from September 3, 2025, through October 3, 2025. Comments will be accepted only on text in draft PDS-02 shown by strike-through and underline and in red print. To review the draft addendum, click on “VIEW DRAFT ADDENDUM HERE” below. To submit your comments, click on “SUBMIT COMMENTS HERE” below. Comments are posted online and you will be able to review comments by clicking on “VIEW COMMENTS HERE” below. When submitting a comment, you must close the page out and re-open it to view your comment. Refreshing the page will cause the comment to be submitted a second time. When posting a comment, please refrain from using your device’s autofill feature as this may prevent your comment from being submitted. VIEW DRAFT ADDENDUM HERE VIEW DRAFT ADDENDUM for Draft PDS-02, RESNET 1550, Embodied Carbon (Opens September 3, 2025) To review the draft addendum, click on Draft PDS-02, RESNET 1550, Embodied Carbon. Submit If you are human, leave this field blank. SUBMIT COMMENTS HERE The public comment period is closed. VIEW COMMENTS HERE Entry Date: September 22, 2025 at 3:27 PMFull Name: Mark WebsterAffiliation: Simpson Gumpertz & HegerAddress: 480 Totten Pond Rd, Waltham, MA 02451 Waltham, Massachusetts 02454Phone Number: 7819079000Email: mdwebster@sgh.comPage Number: 9Section/Table/Figure Number: 3.2Comment Intent: Not an ObjectionComment Type: GeneralComment and Proposed Change: Download Entry Date: September 22, 2025 at 3:34 PMFull Name: Mark WebsterAffiliation: Simpson Gumpertz & HegerAddress: 480 Totten Pond Rd, Waltham, MA 02451 Waltham, Massachusetts 02454Phone Number: 7819079000Email: mdwebster@sgh.comPage Number: 19Section/Table/Figure Number: 6.4Comment Intent: Not an ObjectionComment Type: EditorialComment and Proposed Change: Download Entry Date: September 22, 2025 at 3:37 PMFull Name: Mark WebsterAffiliation: Simpson Gumpertz & HegerAddress: 480 Totten Pond Rd, Waltham, MA 02451 Waltham, Massachusetts 02454Phone Number: 7819079000Email: mdwebster@sgh.comPage Number: 24Section/Table/Figure Number: 8.3Comment Intent: Not an ObjectionComment Type: EditorialComment and Proposed Change: Download Entry Date: October 2, 2025 at 4:30 PMFull Name: Natasha JeremicAffiliation: Canadian Wood CouncilAddress: 420-99 Bank St Ottawa, Alabama K1P 6B9Phone Number: +16137475544Email: njeremic@cwc.caPage Number: 9Section/Table/Figure Number: Section 3.2Comment Intent: ObjectionComment Type: TechnicalComment and Proposed Change: Download Entry Date: October 2, 2025 at 4:33 PMFull Name: Natasha JeremicAffiliation: Canadian Wood CouncilAddress: 420-99 Bank St Ottawa, Alabama K1P 6B9Phone Number: +16137475544Email: njeremic@cwc.caPage Number: 12Section/Table/Figure Number: Table 5.2.1 and throughoutComment Intent: Not an ObjectionComment Type: TechnicalComment and Proposed Change: Download Entry Date: October 2, 2025 at 4:36 PMFull Name: Natasha JeremicAffiliation: Canadian Wood CouncilAddress: 420-99 Bank St Ottawa, Alabama K1P 6B9Phone Number: 16137475544Email: njeremic@cwc.caPage Number: 14 & 24Section/Table/Figure Number: Section 5.3.5 and 8.1.8Comment Intent: Not an ObjectionComment Type: EditorialComment and Proposed Change: Download Entry Date: October 2, 2025 at 4:37 PMFull Name: Mélanie TrottierAffiliation: Builders for Climate ActionAddress: 1957 East Georgia St Vancouver, Alabama V5L2B7Phone Number: 5819970000Email: melanie.trottier.2@gmail.comPage Number: 1Section/Table/Figure Number: subtitleComment Intent: Not an ObjectionComment Type: GeneralComment and Proposed Change: Download Entry Date: October 2, 2025 at 4:41 PMFull Name: Natasha JeremicAffiliation: Canadian Wood CouncilAddress: 420-99 Bank St Ottawa, Alabama K1P 6B9Phone Number: +16137475544Email: njeremic@cwc.caPage Number: 17Section/Table/Figure Number: Section 6.2.2Comment Intent: ObjectionComment Type: TechnicalComment and Proposed Change: Download Entry Date: October 2, 2025 at 4:43 PMFull Name: Natasha JeremicAffiliation: Canadian Wood CouncilAddress: 420-99 Bank St Ottawa, Alabama K1P 6B9Phone Number: 16137475544Email: njeremic@cwc.caPage Number: 19-20Section/Table/Figure Number: Section 6.4Comment Intent: Not an ObjectionComment Type: EditorialComment and Proposed Change: Download Entry Date: October 2, 2025 at 4:56 PMFull Name: Mélanie TrottierAffiliation: Builders for Climate ActionAddress: 1957 East Georgia St Vancouver, Alabama V5L2B7Phone Number: 5819970000Email: melanie.trottier.2@gmail.comPage Number: 6Section/Table/Figure Number: 3.2Comment Intent: Not an ObjectionComment Type: TechnicalComment and Proposed Change: Download Entry Date: October 2, 2025 at 5:25 PMFull Name: Mélanie TrottierAffiliation: Builders for Climate ActionAddress: 1957 East Georgia St Vancouver, Alabama V5L2B7Phone Number: 5819970000Email: melanie.trottier.2@gmail.comPage Number: 13Section/Table/Figure Number: 5.3.1.1Comment Intent: Not an ObjectionComment Type: TechnicalComment and Proposed Change: Download Entry Date: October 2, 2025 at 5:45 PMFull Name: Mélanie TrottierAffiliation: Builders for Climate ActionAddress: 1957 East Georgia St Vancouver, Alabama V5L2B7Phone Number: 5819970000Email: melanie.trottier.2@gmail.comPage Number: 15Section/Table/Figure Number: 5.4.1Comment Intent: Not an ObjectionComment Type: GeneralComment and Proposed Change: Download Entry Date: October 3, 2025 at 12:12 PMFull Name: Webly BowlesAffiliation: WAP SustainabilityAddress: 103 Powell Ct. Brentwood, Tennessee 37027Phone Number: 5037088175Email: webly@wapsustainability.comPage Number: 5Section/Table/Figure Number: 3 DefinitionsComment Intent: Not an ObjectionComment Type: GeneralComment and Proposed Change: Download Entry Date: October 3, 2025 at 12:14 PMFull Name: Webly BowlesAffiliation: WAP SustainabilityAddress: 103 Powell Ct. Brentwood, Tennessee 37027Phone Number: 5037088175Email: webly@wapsustainability.comPage Number: 12Section/Table/Figure Number: 5.2Comment Intent: ObjectionComment Type: GeneralComment and Proposed Change: Download Entry Date: October 3, 2025 at 12:16 PMFull Name: Webly BowlesAffiliation: WAP SustainabilityAddress: 103 Powell Ct. Brentwood, Tennessee 37027Phone Number: 5037088175Email: webly@wapsustainability.comPage Number: 9Section/Table/Figure Number: 3 DefinitionsComment Intent: ObjectionComment Type: EditorialComment and Proposed Change: Download Entry Date: October 3, 2025 at 12:18 PMFull Name: Webly BowlesAffiliation: WAP SustainabilityAddress: 103 Powell Ct. Brentwood, Tennessee 37027Phone Number: 5037088175Email: webly@wapsustainability.comPage Number: 17Section/Table/Figure Number: 6.2.2Comment Intent: Not an ObjectionComment Type: GeneralComment and Proposed Change: Download Entry Date: October 3, 2025 at 1:06 PMFull Name: Darryl DixonAffiliation: National Ready Mixed Concrete AssociationAddress: 66 Canal Center Plaza Suite 250 Alexandria, Virginia 22314Phone Number: 8137279324Email: ddixon@nrmca.orgPage Number: 8Section/Table/Figure Number: 3Comment Intent: ObjectionComment Type: TechnicalComment and Proposed Change: Download Entry Date: October 3, 2025 at 2:26 PMFull Name: Aurora JensenAffiliation: Carbon Leadership ForumAddress: 1108 109th Ave SE Bellevue, Washington 98004Phone Number: 805-850-5830Email: ajensen@carbonleadershipforum.orgPage Number: 14Section/Table/Figure Number: Table 5.3.2 GWP Data SourcesComment Intent: ObjectionComment Type: TechnicalComment and Proposed Change: Download Entry Date: October 3, 2025 at 2:30 PMFull Name: Aurora JensenAffiliation: Carbon Leadership ForumAddress: 1108 109th Ave SE Bellevue, Washington 98004Phone Number: 805-850-5830Email: ajensen@carbonleadershipforum.orgPage Number: 17Section/Table/Figure Number: 6.2.2 Carbon storage for productsComment Intent: ObjectionComment Type: TechnicalComment and Proposed Change: Download Entry Date: October 3, 2025 at 2:34 PMFull Name: Aurora JensenAffiliation: Carbon Leadership ForumAddress: 1108 109th Ave SE Bellevue, Washington 98004Phone Number: 805-850-5830Email: ajensen@carbonleadershipforum.orgPage Number: 19Section/Table/Figure Number: 6.3.3, 6.4 and 6.5Comment Intent: ObjectionComment Type: TechnicalComment and Proposed Change: Download Entry Date: October 3, 2025 at 2:37 PMFull Name: Aurora JensenAffiliation: Carbon Leadership ForumAddress: 7711 3rd Ave NW Bellevue, Washington 98004Phone Number: 805-850-5830Email: ajensen@carbonleadershipforum.orgPage Number: 36Section/Table/Figure Number: 10.3 Verification Procedures for Confirmed Assessments (Normative)Comment Intent: ObjectionComment Type: TechnicalComment and Proposed Change: Download Entry Date: October 3, 2025 at 2:39 PMFull Name: Aurora JensenAffiliation: Carbon Leadership ForumAddress: 1108 109th Ave SE Bellevue, Washington 98004Phone Number: 805-850-5830Email: ajensen@carbonleadershipforum.orgPage Number: 40Section/Table/Figure Number: Table 10.4.1 Excluded Building ComponentsComment Intent: Not an ObjectionComment Type: EditorialComment and Proposed Change: Download Entry Date: October 3, 2025 at 4:10 PMFull Name: Jay CrandellAffiliation: Foam Sheathing Committee of the American Chemistry CouncilAddress: 1236 Bast Lane Shady Side, Maryland 20764Phone Number: 3014667420Email: jcrandell@aresconsulting.bizPage Number: 38Section/Table/Figure Number: Table 10.4.1Comment Intent: ObjectionComment Type: TechnicalComment and Proposed Change: Download Entry Date: October 3, 2025 at 4:12 PMFull Name: Jay CrandellAffiliation: Foam Sheathing Committee of the American Chemistry CouncilAddress: 1236 Bast Lane Shady Side, Maryland 20764Phone Number: 3014667420Email: jcrandell@aresconsulting.bizPage Number: 17 and 41Section/Table/Figure Number: Section 6.2.2 and Section 10.6Comment Intent: ObjectionComment Type: TechnicalComment and Proposed Change: Download Entry Date: October 3, 2025 at 8:56 PMFull Name: Mélanie TrottierAffiliation: Builders for Climate ActionAddress: 1957 East Georgia St Vancouver, Alabama V5L2B7Phone Number: 5819970000Email: melanie@buildersforclimateaction.orgPage Number: 18Section/Table/Figure Number: 6.3.3Comment Intent: Not an ObjectionComment Type: GeneralComment and Proposed Change: Download Tips and Reminders for Submitting Public Comments Comments must pertain to the changes shown in the draft as either strike-through or underlined text in red print. Comments not on the changes under consideration will be rejected. Comments should include a specific proposed change to the text of the draft open for comment and an explanation sufficient for the review committees to understand the commenter’s concern or objection. Proposed added text must be underlined and text proposed to be removed must be shown using strike-through. If not submitted in this format, the public comment may be rejected. Do not submit comments on other chapters or on sections or proposed changes that are not identified as open for public comment by red print. Comments not on the proposal under consideration will be rejected. If you submit public comment representing the collective interests of a group of stakeholders, you are encouraged to submit ONE public comment and identify all stakeholders in that comment. While not required, this expedites the ability of the committees to respond to commenters in a timely manner. Public comments are reviewed by committees comprised of volunteer members, that are Raters, Providers, Software Developers and other industry and public interest stakeholders. They are not reviewed by RESNET Staff. Most amendments to RESNET standards are proposed by industry and public stakeholders not RESNET. To learn more about submitting proposed amendments visit this page: https://www.resnet.us/about/standards/submit-proposed-amendments/
