[
  {
    "id": "S01",
    "publisher": "International Code Council",
    "title": "2012 IECC and ASHRAE 90.1-2010 comparison",
    "url": "https://media.iccsafe.org/news/eNews/2012v9n14/iecc-ashrae.pdf",
    "locator": "PDF page 40; printed page 35",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Issuer comparison reproduces both loading-dock clauses; not the full standards."
  },
  {
    "id": "S02",
    "publisher": "U.S. Department of Energy, Building Energy Codes Program",
    "title": "2015 IECC Commercial Requirements: Envelope",
    "url": "https://www.energycodes.gov/sites/default/files/2019-09/2015_IECC_commercial_requirements_envelope.pdf",
    "locator": "Loading dock weatherseals, C402.5.6",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "official_documentary_corroboration",
    "verification_note": "Official training publication; not a substitute for a jurisdiction's adopted text."
  },
  {
    "id": "S03",
    "publisher": "Florida Building Commission / Florida Solar Energy Center",
    "title": "2018 model-code change review: CE116-16",
    "url": "https://www.floridabuilding.org/FBC/thecode/2020_Code_Development/I-Code-Changes-Requested/Swami-FSEC.pdf",
    "locator": "CE116-16; C402.5.6",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "official_documentary_corroboration",
    "verification_note": "Official code-change review documenting the direct-contact addition; not the complete 2018 model code."
  },
  {
    "id": "S04",
    "publisher": "Washington State Legislature",
    "title": "WAC 51-11C-40246: C402.5.8 Loading dock weatherseals",
    "url": "https://app.leg.wa.gov/wac/default.aspx?cite=51-11C-40246",
    "locator": "C402.5.8 and rule history",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Adopted Washington text; rule history gives March 15, 2024 effective date. Do not substitute for another jurisdiction's adoption."
  },
  {
    "id": "S05",
    "publisher": "ASHRAE",
    "title": "Addendum am to Standard 90.1-2001",
    "url": "https://www.ashrae.org/File%20Library/Technical%20Resources/Standards%20and%20Guidelines/Standards%20Addenda/90-1-2001/90-1-2001_Add-am.pdf",
    "locator": "Loading dock weatherseals redline, PDF pages 5–6",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Editorial instruction and printed heading use different section numbers; the discrepancy is preserved."
  },
  {
    "id": "S06",
    "publisher": "ASHRAE; sample hosted by International Code Council",
    "title": "Standard 90.1-2007 sample",
    "url": "https://shop.iccsafe.org/media/wysiwyg/material/8950P199-sample.pdf",
    "locator": "Printed page 18, Section 5.4.3.3",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Original standard excerpt hosted by a code publisher."
  },
  {
    "id": "S07",
    "publisher": "ASHRAE",
    "title": "Published addenda to Standard 90.1-2016",
    "url": "https://www.ashrae.org/file%20library/technical%20resources/standards%20and%20guidelines/standards%20addenda/90.1-2016/90_1_2016_t_v_y_al_an_ao_at_aw_ay...pdf",
    "locator": "PDF page 19; unchanged Section 5.4.3.3 in the reproduced text",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "The three periods before .pdf are part of the source URL."
  },
  {
    "id": "S08",
    "publisher": "ASHRAE",
    "title": "Addendum t to Standard 90.1-2019",
    "url": "https://www.ashrae.org/file%20library/technical%20resources/standards%20and%20guidelines/standards%20addenda/90_1_2019_t_20220812.pdf",
    "locator": "PDF page 7; loading dock weatherseals redline",
    "source_date": "2022",
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "The redline distinguishes original 5.4.3.3 from revised 5.4.3.2; 2022 addendum."
  },
  {
    "id": "S09",
    "publisher": "International Code Council / North Carolina",
    "title": "2018 North Carolina State Building Code: Energy Conservation Code, Chapter 4",
    "url": "https://codes.iccsafe.org/content/NCECC2018P3/chapter-4-ce-commercial-energy-efficiency",
    "locator": "C401.2; C402.5.6",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Adopted integrated North Carolina text read directly; not the same document as the 2018 model IECC."
  },
  {
    "id": "S10",
    "publisher": "International Code Council / North Carolina",
    "title": "2018 North Carolina Energy Conservation Code: Loading dock weatherseals",
    "url": "https://codes.iccsafe.org/s/NCECC2018/chapter-4-ce-commercial-energy-efficiency/NCECC2018-Pt01-Ch04-SecC402.5.6",
    "locator": "C402.5.6",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "The adopted clause requires restriction of infiltration; it does not contain the model 2018 IECC direct-contact addition."
  },
  {
    "id": "S11",
    "publisher": "International Code Council / North Carolina",
    "title": "2018 North Carolina Energy Conservation Code, Chapter 3",
    "url": "https://codes.iccsafe.org/content/NCECC2018P3/chapter-3-ce-general-requirements",
    "locator": "Table C301.1, all 100 county entries",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "All county-zone assignments transcribed from the adopted integrated code."
  },
  {
    "id": "S12",
    "publisher": "North Carolina General Assembly",
    "title": "G.S. 143-138: North Carolina State Building Code",
    "url": "https://www.ncleg.gov/EnactedLegislation/Statutes/HTML/BySection/Chapter_143/GS_143-138.html",
    "locator": "Subsection (b18)",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Primary Factory, Storage and Utility occupancy exemption applies to the entire floor area."
  },
  {
    "id": "S13",
    "publisher": "North Carolina Office of the State Fire Marshal",
    "title": "Approved amendments: 2018 Energy Conservation Code",
    "url": "https://www.ncosfm.gov/2017-2024-approved-amendments-241210energy-conservation-code/open",
    "locator": "C101.2; C401.2 Item 4; PDF page 2",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Approved text, not the proposed-amendments document. COMcheck provision effective January 1, 2021; cover updated January 7, 2026."
  },
  {
    "id": "S14",
    "publisher": "North Carolina Office of the State Fire Marshal",
    "title": "Codes — Current and Past",
    "url": "https://www.ncosfm.gov/codes/codes-current-and-past",
    "locator": "2018 North Carolina codes",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "2018 code effective January 1, 2019; based on 2015 International Codes with North Carolina amendments."
  },
  {
    "id": "S15",
    "publisher": "North Carolina Office of the State Fire Marshal",
    "title": "Letter regarding 2024 State Building Code effective date",
    "url": "https://www.ncosfm.gov/letter-re-2024-state-building-code-effective-date/open",
    "locator": "March 31, 2025 letter, both pages",
    "source_date": "2025-03-31",
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Distinguishes permanent-rule status from effective date; explains alternate-method route."
  },
  {
    "id": "S16",
    "publisher": "North Carolina General Assembly",
    "title": "Session Law 2025-2",
    "url": "https://www.ncleg.gov/EnactedLegislation/SessionLaws/HTML/2025-2026/SL2025-2.html",
    "locator": "Section 5.12(b)",
    "source_date": "2025",
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Twelve months after the first day of the month following certification—not twelve months after the certification date."
  },
  {
    "id": "S17",
    "publisher": "North Carolina State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors",
    "title": "Update on new North Carolina State Building Code effective dates",
    "url": "https://nclicensing.org/wp-content/uploads/2026/05/2026-06-01-Code-Update.pdf",
    "locator": "June 1, 2026 update",
    "source_date": "2026-06-01",
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "May 1, 2027 was the earliest possible date reported in this dated update, not an established statewide effective date."
  },
  {
    "id": "S18",
    "publisher": "North Carolina Office of the State Fire Marshal",
    "title": "Guidance concerning Session Law 2022-46 temporary commercial duct-insulation relief",
    "url": "https://www.ncosfm.gov/guidance-papers/sl-2022-46-temporary-reduction-duct-insulation-levels-commercial-buildings/open",
    "locator": "Question 3",
    "source_date": "2022-07-20",
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Used only to document the original C401.2 Item 1 reference to 90.1-2013. Its temporary duct-relief provisions are not presented as current."
  },
  {
    "id": "S19",
    "publisher": "MHI, Loading Dock Equipment Manufacturers (LODEM)",
    "title": "Dock equipment standards, publications and energy-savings guidance",
    "url": "https://og.mhi.org/lodem",
    "locator": "MH30 standards list; energy-savings estimation discussion",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Three listed MH30 standards have 2022 editions; efficiency claims lack a defined test denominator in the cited page."
  },
  {
    "id": "S20",
    "publisher": "Rite-Hite",
    "title": "Rite-Hite Dock Seal Lineup",
    "url": "https://pdf.directindustry.com/pdf/rite-hite/rite-hite-dock-seal-lineup/36057-844651.html",
    "locator": "Original manufacturer catalog page, not the platform-generated summary",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "manufacturer_original_hosted_copy",
    "verification_note": "Archived manufacturer-authored brochure hosted by DirectIndustry; brochure date not established. Its warranty language is not a current transaction-specific warranty confirmation."
  },
  {
    "id": "S21",
    "publisher": "Rite-Hite",
    "title": "Classic dock seal",
    "url": "https://www.ritehite.com/en/am/products/dock-seals-and-shelters/dock-seals/classic",
    "locator": "Features; head-pad and head-curtain designs",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "No model-specific maximum opening extracted from the reviewed page."
  },
  {
    "id": "S22",
    "publisher": "Rite-Hite",
    "title": "Performer dock seal",
    "url": "https://www.ritehite.com/en/am/products/dock-seals-and-shelters/dock-seals/performer",
    "locator": "Features and warranty",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "36-month money-back provision requires appropriately signed paperwork; separate 12-month parts-and-labor coverage."
  },
  {
    "id": "S23",
    "publisher": "Rite-Hite",
    "title": "Complete Dock Sealing Guide",
    "url": "https://www.ritehite.com/en/am/resource-center/Literature/88C3D4B6409F43DE94BC37F79CBBF3F4/complete_seal_brochure",
    "locator": "Hinge-gap discussion; four gap-cost categories and total",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Manufacturer illustrations and estimates, not independent measurements or a national cost survey. Retrieved document bears a 2026 copyright; estimate base year not stated."
  },
  {
    "id": "S24",
    "publisher": "Rite-Hite",
    "title": "Complete Dock Sealing Guide, archived manufacturer catalog",
    "url": "https://pdf.directindustry.com/pdf/rite-hite/complete-dock-sealing-guide/36057-660315.html",
    "locator": "Original catalog excerpts and page images, especially pages 8–9",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "manufacturer_original_hosted_copy",
    "verification_note": "15.2-square-foot worksheet example and cost figure assessed as manufacturer illustrations. Platform-generated overview is not a source."
  },
  {
    "id": "S25",
    "publisher": "Pentalift Equipment Corporation",
    "title": "How to choose between foam compression dock seals, inflatable dock seals and dock shelters",
    "url": "https://www.pentalift.com/choosing-dock-seals-dock-shelters/",
    "locator": "General size, projection and mechanism guidance",
    "source_date": "2026-04-01",
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "General category guidance is not a model-specific maximum."
  },
  {
    "id": "S26",
    "publisher": "Pentalift Equipment Corporation",
    "title": "PS-100 Fixed Header Dock Seals",
    "url": "https://www.pentalift.com/solutions/ps-100-fixed-header-dock-seals/",
    "locator": "Best-suited opening sizes",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "The stated applications are not presented here as a universal maximum."
  },
  {
    "id": "S27",
    "publisher": "Pentalift Equipment Corporation",
    "title": "PSI-350AA Adjustable Header Inflatable Dock Seals",
    "url": "https://www.pentalift.com/solutions/psi-350aa-adjustable-header-inflatable-dock-seals/",
    "locator": "Opening-size and adjustable-header description",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": ""
  },
  {
    "id": "S28",
    "publisher": "Pentalift Equipment Corporation",
    "title": "Dock seals and shelters: product models",
    "url": "https://www.pentalift.com/solutions_category/product-models-dock-seals-and-shelters/",
    "locator": "Product names, inflatable families, rigid shelter access",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": ""
  },
  {
    "id": "S29",
    "publisher": "Blue Giant Equipment Corporation",
    "title": "Full Access Dock Seals",
    "url": "https://www.bluegiant.com/en/products/dock-equipment/seals-and-shelters/shelters/full-access/",
    "locator": "Published applications, features and options",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Manufacturer-published specification, not independent testing; page publication date not established."
  },
  {
    "id": "S30",
    "publisher": "Blue Giant Equipment Corporation",
    "title": "Stationary Inflatable Dock Seal",
    "url": "https://www.bluegiant.com/en/products/dock-equipment/seals-and-shelters/inflatables/stationary-inflatable/",
    "locator": "Published applications, features and options",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Manufacturer-published specification, not independent testing; page publication date not established."
  },
  {
    "id": "S31",
    "publisher": "Blue Giant Equipment Corporation",
    "title": "Stationary Shelter",
    "url": "https://www.bluegiant.com/en/products/dock-equipment/seals-and-shelters/shelters/stationary-shelter/",
    "locator": "Published applications, features and options",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Manufacturer-published specification, not independent testing; page publication date not established."
  },
  {
    "id": "S32",
    "publisher": "Blue Giant Equipment Corporation",
    "title": "Retractable Shelter",
    "url": "https://www.bluegiant.com/en/products/dock-equipment/seals-and-shelters/shelters/retractable-shelter/",
    "locator": "Published applications, features and options",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Manufacturer-published specification, not independent testing; page publication date not established."
  },
  {
    "id": "S33",
    "publisher": "Blue Giant Equipment Corporation",
    "title": "Foam Frame Shelter (BG600)",
    "url": "https://www.bluegiant.com/en/products/dock-equipment/seals-and-shelters/shelters/foam-frame/",
    "locator": "Published applications, features and options",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Manufacturer-published specification, not independent testing; page publication date not established."
  },
  {
    "id": "S34",
    "publisher": "Blue Giant Equipment Corporation",
    "title": "Architect resources: dock planning and design, door size",
    "url": "https://www.bluegiant.com/en/architects/planning-and-design/door-size/",
    "locator": "Dock heights; door centerlines; vehicle-height illustration",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "The flatbed and closed-van heights refer to different parts of those vehicles; they are not a single trailer roof-height range."
  },
  {
    "id": "S35",
    "publisher": "Super-Seal Manufacturing",
    "title": "Series 0251 Foam Pad Curtain Dock Seal",
    "url": "https://supersealmfg.com/products/seals-shelters/dock-seals/series-0251-foam-pad-curtain-dock-seal/",
    "locator": "Standard configuration; larger-opening options",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Conflicting header foam-insert dimensions are excluded. Wedge pads and longer curtain are required for the larger published configuration."
  },
  {
    "id": "S36",
    "publisher": "Super-Seal Manufacturing",
    "title": "DW Series Hybrid Shelter",
    "url": "https://supersealmfg.com/products/seals-shelters/hybrid-shelters/dock-wedge/",
    "locator": "Opening size; outside unit; projection; trailer range",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Keep wall-face projection separate from projection ahead of bumpers; trailer heights are conditional on 48-inch dock height."
  },
  {
    "id": "S37",
    "publisher": "Super-Seal Manufacturing",
    "title": "0401A Stationary Inflatable Dock Shelter",
    "url": "https://supersealmfg.com/products/seals-shelters/truck-shelters/0401a-stationary-inflatablel-dock-shelter/",
    "locator": "Opening-width discrepancy",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Introduction gives 10 ft width; detailed opening line gives 10 ft 10 in. Product remains excluded from the 14-record sample; no single width adopted."
  },
  {
    "id": "S38",
    "publisher": "United States patent record",
    "title": "US4671029A, Dock shelter",
    "url": "https://patents.google.com/patent/US4671029A/en",
    "locator": "Background discussion of inward seal protrusion and exterior shelter contact",
    "source_date": "1987",
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Patent narrative is design background, not a measured failure-rate or life-expectancy study."
  },
  {
    "id": "S39",
    "publisher": "U.S. Occupational Safety and Health Administration",
    "title": "Powered Industrial Trucks eTool: Loading Docks",
    "url": "https://www.osha.gov/etools/powered-industrial-trucks/workplace/loading-docks",
    "locator": "Dock-edge falls; wet or icy conditions",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Safety reference; no installation or hazardous-work procedure reproduced."
  },
  {
    "id": "S40",
    "publisher": "Piedmont Triad Regional Council",
    "title": "About the Piedmont Triad Regional Council",
    "url": "https://www.ptrc.org/about",
    "locator": "Twelve-county service area",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Used for regional membership, not population or economic estimates."
  },
  {
    "id": "S41",
    "publisher": "Shums Coda Associates; hosted by Montana Department of Labor and Industry",
    "title": "ASHRAE 90.1-2019 training handout",
    "url": "https://bsd.dli.mt.gov/_docs/Training/90.1-2019-Handout.pdf",
    "locator": "Loading dock weatherseals slide",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "government_hosted_training",
    "verification_note": "Retained only to disclose its numbering conflict with the ASHRAE addendum; not used to establish original 2019 numbering."
  },
  {
    "id": "S42",
    "publisher": "U.S. Department of Energy; hosted by Oregon Building Codes Division",
    "title": "ASHRAE 90.1-2016 Envelope training",
    "url": "https://www.oregon.gov/bcd/codes-stand/Documents/ashrae90.1-2016-envelope.pdf",
    "locator": "Loading dock weatherseals slide",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "official_documentary_corroboration",
    "verification_note": "Official training corroboration; issuer text in S07 controls the 2016 ledger row."
  },
  {
    "id": "S43",
    "publisher": "Piedmont Triad Regional Council",
    "title": "Who We Are and What We Do: member governments",
    "url": "https://www.ptrc.org/about/who-we-are-and-what-we-do",
    "locator": "Member counties and municipalities",
    "source_date": null,
    "date_checked": "2026-09-12",
    "source_type": "primary",
    "verification_note": "Regional reference; community names in the county table do not determine a property's legal jurisdiction."
  }
]