{ "version": "1.0.1", "verified_date": "2026-09-15", "sources": [ { "source_id": "S01", "publisher": "Bureau International des Containers", "document": "Container Check Digit Calculator", "url": "https://www.bic-code.org/check-digit-calculator/", "source_type": "Public institutional reference", "source_vintage": "Undated; checked 2026-09-15", "verification_scope": "Identifier structure and minimum character height; not the complete algorithm", "date_checked": "2026-09-15" }, { "source_id": "S02", "publisher": "Bureau International des Containers", "document": "Mandatory Operational Marks", "url": "https://www.bic-code.org/mandatory-operational-marks/", "source_type": "Public institutional reference", "source_vintage": "Undated; checked 2026-09-15", "verification_scope": "Mass marks, optional payload, electrical and height warning specifications", "date_checked": "2026-09-15" }, { "source_id": "S03", "publisher": "Bureau International des Containers", "document": "Size & Type Code", "url": "https://www.bic-code.org/size-type-code/", "source_type": "Public institutional reference", "source_vintage": "Undated; checked 2026-09-15", "verification_scope": "Code structure and publicly displayed size mapping; conflicting 45-foot mapping retained", "date_checked": "2026-09-15" }, { "source_id": "S04", "publisher": "Bureau International des Containers", "document": "Type Code Designation", "url": "https://www.bic-code.org/type-code-designation/", "source_type": "Public institutional reference", "source_vintage": "ISO 6346:2022 table identified by publisher", "verification_scope": "Detailed type codes and reduced stacking/racking footnote; not type-group codes", "date_checked": "2026-09-15" }, { "source_id": "S05", "publisher": "Bureau International des Containers", "document": "CSC Combined Data Plate", "url": "https://www.bic-code.org/csc-combined-data-plate/", "source_type": "Public institutional reference", "source_vintage": "Undated; checked 2026-09-15", "verification_scope": "Plate dimensions, text heights, combined plate components; not a direct licensed CSC/ISO read", "date_checked": "2026-09-15" }, { "source_id": "S06", "publisher": "Bureau International des Containers", "document": "Marking of Containers", "url": "https://www.bic-code.org/marking-of-containers/", "source_type": "Public institutional reference", "source_vintage": "Undated; checked 2026-09-15", "verification_scope": "Locations and labels; not every illustrated mark is universally mandatory", "date_checked": "2026-09-15" }, { "source_id": "S07", "publisher": "Bureau International des Containers", "document": "BoxTech Global Container Database", "url": "https://www.bic-code.org/boxtech/", "source_type": "Original database operator", "source_vintage": "Undated live page; checked 2026-09-15", "verification_scope": "Operator states over 15 million container records; technical fields include tare", "date_checked": "2026-09-15" }, { "source_id": "S08", "publisher": "German Insurance Association (GDV)", "document": "Container Handbook, section 3.3: Identification system", "url": "https://www.containerhandbuch.de/chb_e/stra/stra_03_03_00.html", "source_type": "Original institutional technical handbook", "source_vintage": "Historical explanation referring to DIN EN ISO 6346:1996", "verification_scope": "Algorithm reference, zero/remainder-ten rule, SUDU and TEXU validation examples; not current normative ISO text", "date_checked": "2026-09-15" }, { "source_id": "S09", "publisher": "Bureau International des Containers", "document": "BIC Codes", "url": "https://www.bic-code.org/bic-codes/", "source_type": "Registry operator", "source_vintage": "Undated live reference; checked 2026-09-15", "verification_scope": "Theoretical BICU 123456 5 example; register history and equipment identifier", "date_checked": "2026-09-15" }, { "source_id": "S10", "publisher": "International Organization for Standardization", "document": "ISO 6346:2022 catalogue", "url": "https://www.iso.org/standard/83558.html", "source_type": "Standards issuer catalogue", "source_vintage": "Edition 4; published 2022-04-26; corrected 2022-08", "verification_scope": "Scope, regulatory disclaimer, preceding-edition marks, publication status and CHF 135 price", "date_checked": "2026-09-15" }, { "source_id": "S11", "publisher": "International Organization for Standardization", "document": "ISO 6346 fifth-edition project catalogue", "url": "https://www.iso.org/standard/90821.html", "source_type": "Standards issuer catalogue", "source_vintage": "Under publication, stage 60.00, since 2026-08-12", "verification_scope": "Development dates and status as checked; not a published fifth-edition text", "date_checked": "2026-09-15" }, { "source_id": "S12", "publisher": "International Organization for Standardization", "document": "ISO 668:2020 catalogue", "url": "https://www.iso.org/standard/76912.html", "source_type": "Standards issuer catalogue", "source_vintage": "Edition 7; published 2020-01-06; Amendment 1:2022 listed", "verification_scope": "Catalogue status, review date, standard/amendment prices; amendment text not reviewed", "date_checked": "2026-09-15" }, { "source_id": "S13", "publisher": "International Organization for Standardization; preview hosted by iTeh", "document": "ISO 668:2020 original-text preview, clause 5.2.2", "url": "https://cdn.standards.iteh.ai/samples/76912/7354663676144f8ab1a7b57cb573b0a6/ISO-668-2020.pdf", "source_type": "Original standard excerpt", "source_vintage": "2020 base text, excluding later amendment", "verification_scope": "36,000 kg threshold with testing and marking conditions; historical base-text comparison only", "date_checked": "2026-09-15" }, { "source_id": "S14", "publisher": "US Coast Guard; eCFR", "document": "49 CFR part 451, subpart C: Safety Approval Plate", "url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-IV/subchapter-B/part-451/subpart-C", "source_type": "Federal regulation", "source_vintage": "eCFR text retrieved 2026-09-15", "verification_scope": "Sections 451.21, 451.23 and 451.25", "date_checked": "2026-09-15" }, { "source_id": "S15", "publisher": "US Coast Guard; eCFR", "document": "49 CFR part 452: Examination of Containers", "url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-IV/subchapter-B/part-452", "source_type": "Federal regulation", "source_vintage": "eCFR title 49 displayed up to date as of 2026-09-11", "verification_scope": "Periodic/continuous examinations, NED, ACEP, 24-month mark durability and 30-month examinations", "date_checked": "2026-09-15" }, { "source_id": "S16", "publisher": "PHMSA; eCFR", "document": "49 CFR 172.519: General specifications for placards", "url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-172/subpart-F/section-172.519", "source_type": "Federal regulation", "source_vintage": "eCFR title 49 displayed up to date as of 2026-09-11", "verification_scope": "250 mm size, 12.5 mm border, 41 mm numerals, durability, domestic grandfathering and exceptions", "date_checked": "2026-09-15" }, { "source_id": "S17", "publisher": "US Government Publishing Office", "document": "49 CFR 172.519, 2010 published edition", "url": "https://www.govinfo.gov/content/pkg/CFR-2010-title49-vol2/pdf/CFR-2010-title49-vol2-sec172-519.pdf", "source_type": "Historical federal regulation", "source_vintage": "2010 published CFR edition", "verification_scope": "Historical 273 mm size and 12.7 mm border; not the current rule", "date_checked": "2026-09-15" }, { "source_id": "S18", "publisher": "PHMSA; eCFR", "document": "49 CFR 173.9: Transport vehicles or freight containers containing lading which has been fumigated", "url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-173/subpart-A/section-173.9", "source_type": "Federal regulation", "source_vintage": "eCFR text retrieved 2026-09-15", "verification_scope": "FUMIGANT marking and narrow ventilation exemption; no operational instructions reproduced", "date_checked": "2026-09-15" }, { "source_id": "S19", "publisher": "PHMSA; eCFR", "document": "49 CFR 172.504: General placarding requirements", "url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-172/subpart-F/section-172.504", "source_type": "Federal regulation", "source_vintage": "eCFR text retrieved 2026-09-15", "verification_scope": "Placarding requirements and exceptions; applied with 172.512 and 172.519", "date_checked": "2026-09-15" }, { "source_id": "S20", "publisher": "Iowa Legislature", "document": "Iowa Code 2026, section 321.463", "url": "https://www.legis.iowa.gov/docs/code/321.463.pdf", "source_type": "State statute", "source_vintage": "Iowa Code 2026; PDF dated 2025-12-11", "verification_scope": "Axle/gross limits and exceptions, noninterstate 6/7-axle weights, fines, understated cargo weight and offence classification", "date_checked": "2026-09-15" }, { "source_id": "S21", "publisher": "Iowa Department of Transportation", "document": "Types of Oversize/Overweight Permits", "url": "https://iowadot.gov/motor-carriers/how-do-i-get-oversize-overweight-permits/permit-types", "source_type": "Issuing agency guidance", "source_vintage": "Live page checked 2026-09-15", "verification_scope": "Indivisible definition, All-Systems Overweight and raw forest products; no blanket ban on divisible permits", "date_checked": "2026-09-15" }, { "source_id": "S22", "publisher": "Hapag-Lloyd", "document": "20-foot Standard container example", "url": "https://www.hapag-lloyd.com/en/services-information/cargo-fleet/container/20-standard.html", "source_type": "Original carrier specification", "source_vintage": "Undated fleet example; checked 2026-09-15", "verification_scope": "22G1, volume and mass values; example not industry average", "date_checked": "2026-09-15" }, { "source_id": "S23", "publisher": "Hapag-Lloyd", "document": "40-foot Standard container example", "url": "https://www.hapag-lloyd.com/en/services-information/cargo-fleet/container/40-standard.html", "source_type": "Original carrier specification", "source_vintage": "Undated fleet example; checked 2026-09-15", "verification_scope": "42G1, volume and mass values; example not industry average", "date_checked": "2026-09-15" }, { "source_id": "S24", "publisher": "Hapag-Lloyd", "document": "40-foot Standard High Cube container example", "url": "https://www.hapag-lloyd.com/en/services-information/cargo-fleet/container/40-standard-high-cube.html", "source_type": "Original carrier specification", "source_vintage": "Undated fleet example; checked 2026-09-15", "verification_scope": "45G1, volume and mass values; example not industry average", "date_checked": "2026-09-15" }, { "source_id": "S25", "publisher": "Hapag-Lloyd", "document": "45-foot Standard High Cube container example", "url": "https://www.hapag-lloyd.com/en/services-information/cargo-fleet/container/45-standard-high-cube.html", "source_type": "Original carrier specification", "source_vintage": "Undated fleet example; checked 2026-09-15", "verification_scope": "L5G1 and mass/volume; preserves conflicting 4,800 kg and 10,552 lb tare values as published", "date_checked": "2026-09-15" }, { "source_id": "S26", "publisher": "International Maritime Organization", "document": "Verification of the gross mass of a packed container", "url": "https://www.imo.org/en/ourwork/safety/pages/verification-of-the-gross-mass.aspx", "source_type": "Treaty administrator guidance", "source_vintage": "SOLAS amendment effective 2016-07-01; page checked 2026-09-15", "verification_scope": "Actual packed gross mass, shipper responsibility and two approved verification methods", "date_checked": "2026-09-15" }, { "source_id": "S27", "publisher": "IMO/ILO/UNECE; International Labour Organization copy", "document": "CTU Code: section 6.2.2; annex 4, sections 1–2; annex 5, sections 4.1.2.2–4.1.2.4", "url": "https://www.ilo.org/sites/default/files/wcmsp5/groups/public/%40ed_dialogue/%40sector/documents/publication/wcms_492710.pdf", "source_type": "Original intergovernmental code", "source_vintage": "2014 CTU Code; electronic edition published 2016", "verification_scope": "CSC maximum-gross field and cargo-mass distinction; absence of warning does not exclude fumigants; absorbed gas, lost marks and listed cargo examples", "date_checked": "2026-09-15" }, { "source_id": "S28", "publisher": "National Institute of Standards and Technology", "document": "NIST Guide to the SI, footnote 22", "url": "https://www.nist.gov/pml/special-publication-811/nist-guide-si-footnotes", "source_type": "National measurement authority", "source_vintage": "Page updated 2025-08-18", "verification_scope": "Exact avoirdupois pound conversion: 0.45359237 kg", "date_checked": "2026-09-15" }, { "source_id": "S29", "publisher": "US Customs and Border Protection; eCFR", "document": "19 CFR part 115: Cargo Container and Road Vehicle Certification Pursuant to International Customs Conventions", "url": "https://www.ecfr.gov/current/title-19/chapter-I/part-115", "source_type": "Federal regulation", "source_vintage": "eCFR text retrieved 2026-09-15", "verification_scope": "Customs approval; sections 115.30, 115.32, 115.40 and 115.42", "date_checked": "2026-09-15" }, { "source_id": "S30", "publisher": "International Maritime Organization", "document": "International Convention for Safe Containers (CSC)", "url": "https://www.imo.org/en/ourwork/safety/pages/containers-default.aspx", "source_type": "Treaty administrator guidance", "source_vintage": "1972 convention as amended; page checked 2026-09-15", "verification_scope": "Scope, approval, owner maintenance responsibility; not all boxes/air containers covered", "date_checked": "2026-09-15" }, { "source_id": "S31", "publisher": "Iowa Legislature", "document": "Iowa Code 2026, section 321E.26: Transportation of raw forest products", "url": "https://www.legis.iowa.gov/docs/code/321E.26.pdf", "source_type": "State statute", "source_vintage": "Iowa Code 2026; PDF dated 2025-12-11", "verification_scope": "Expressly permits qualifying divisible raw forest product loads, excluding interstate travel", "date_checked": "2026-09-15" }, { "source_id": "S32", "publisher": "Iowa Legislature", "document": "Iowa Code 2026, section 321E.29: Excess size divisible load permits", "url": "https://www.legis.iowa.gov/docs/code/321E.29.pdf", "source_type": "State statute", "source_vintage": "Iowa Code 2026; PDF dated 2025-12-11", "verification_scope": "Special/emergency divisible-load permits with authority-set weight and route conditions", "date_checked": "2026-09-15" }, { "source_id": "S33", "publisher": "PHMSA; eCFR", "document": "49 CFR 172.512: Freight containers and aircraft unit load devices", "url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-172/subpart-F/section-172.512", "source_type": "Federal regulation", "source_vintage": "eCFR text retrieved 2026-09-15", "verification_scope": "Freight-container placarding applicability and exceptions", "date_checked": "2026-09-15" }, { "source_id": "S34", "publisher": "PHMSA; eCFR", "document": "49 CFR 173.29: Empty packagings", "url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-173/subpart-B/section-173.29", "source_type": "Federal regulation", "source_vintage": "eCFR text retrieved 2026-09-15", "verification_scope": "Residue hazards and conditional exceptions; unloading alone does not erase hazard obligations", "date_checked": "2026-09-15" } ], "marking_register": [ { "mark_id": "owner-code", "marking": "Owner code (first three letters)", "where_it_appears": "Identification number", "what_it_means": "The registered owner or principal operator", "what_it_does_not_establish": "Cargo origin, contents or who holds title to this unit today", "governing_instrument_or_reference": "ISO identification system; BIC registration", "clause_or_section": "BIC Codes / identification reference", "applicability": "Required within this identification system", "minimum_size_or_format": "Identification characters: at least 100 mm", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S01;S09", "source_url": "https://www.bic-code.org/check-digit-calculator/ | https://www.bic-code.org/bic-codes/", "verified_date": "2026-09-15" }, { "mark_id": "equipment-u", "marking": "Equipment category identifier U", "where_it_appears": "Fourth character of identification number", "what_it_means": "A freight container", "what_it_does_not_establish": "Whether it is dry, reefer or open-top", "governing_instrument_or_reference": "ISO identification system, explained by BIC", "clause_or_section": "Equipment category U", "applicability": "Required category within this format", "minimum_size_or_format": "One category letter", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S01;S09", "source_url": "https://www.bic-code.org/check-digit-calculator/ | https://www.bic-code.org/bic-codes/", "verified_date": "2026-09-15" }, { "mark_id": "equipment-j", "marking": "Equipment category identifier J", "where_it_appears": "Fourth character of identification number", "what_it_means": "Detachable freight-container-related equipment", "what_it_does_not_establish": "A trailer or chassis; that category is Z", "governing_instrument_or_reference": "ISO identification system, explained by BIC", "clause_or_section": "Equipment category J", "applicability": "Conditional equipment category", "minimum_size_or_format": "One category letter", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S01;S09", "source_url": "https://www.bic-code.org/check-digit-calculator/ | https://www.bic-code.org/bic-codes/", "verified_date": "2026-09-15" }, { "mark_id": "equipment-z", "marking": "Equipment category identifier Z", "where_it_appears": "Fourth character of identification number", "what_it_means": "A trailer or chassis", "what_it_does_not_establish": "A freight container", "governing_instrument_or_reference": "ISO identification system, explained by BIC", "clause_or_section": "Equipment category Z", "applicability": "Conditional equipment category", "minimum_size_or_format": "One category letter", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S01;S09", "source_url": "https://www.bic-code.org/check-digit-calculator/ | https://www.bic-code.org/bic-codes/", "verified_date": "2026-09-15" }, { "mark_id": "serial", "marking": "Six-digit serial number", "where_it_appears": "Identification number", "what_it_means": "The owner/operator reference for the unit", "what_it_does_not_establish": "A standardised manufacture date or other guaranteed encoded meaning", "governing_instrument_or_reference": "ISO identification system, explained by BIC", "clause_or_section": "Serial number", "applicability": "Required within this format", "minimum_size_or_format": "Six digits, including leading zeros", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S01;S09", "source_url": "https://www.bic-code.org/check-digit-calculator/ | https://www.bic-code.org/bic-codes/", "verified_date": "2026-09-15" }, { "mark_id": "check-digit", "marking": "Check digit", "where_it_appears": "Eleventh character of identification number", "what_it_means": "A checksum for recording/transmission consistency", "what_it_does_not_establish": "Registration, ownership, existence, condition or proof of error-free transcription", "governing_instrument_or_reference": "ISO identification system; GDV algorithm explanation", "clause_or_section": "Check digit / handbook section 3.3", "applicability": "Required within this format", "minimum_size_or_format": "One digit; raw remainder 10 maps to 0", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S01;S08;S09", "source_url": "https://www.bic-code.org/check-digit-calculator/ | https://www.containerhandbuch.de/chb_e/stra/stra_03_03_00.html | https://www.bic-code.org/bic-codes/", "verified_date": "2026-09-15" }, { "mark_id": "size-type", "marking": "Size and type code", "where_it_appears": "Separate marking near identification", "what_it_means": "Length, width/height, and detailed type/characteristics", "what_it_does_not_establish": "Actual cargo mass or usable door opening", "governing_instrument_or_reference": "ISO size/type system, explained by BIC", "clause_or_section": "Size & Type Code", "applicability": "Code interpretation", "minimum_size_or_format": "Four characters; no independent minimum height verified here", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S03", "source_url": "https://www.bic-code.org/size-type-code/", "verified_date": "2026-09-15" }, { "mark_id": "reduced-capability", "marking": "Letter in fourth position of detailed size/type code", "where_it_appears": "Detailed size/type marking, not type-group code", "what_it_means": "Reduced stacking and/or racking capability under the relevant table category", "what_it_does_not_establish": "The exact load limit or present condition", "governing_instrument_or_reference": "BIC published detailed type-code table", "clause_or_section": "Reduced-capability column and footnote", "applicability": "Conditional detailed type code", "minimum_size_or_format": "Not applicable to type-group suffixes such as GP", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S04", "source_url": "https://www.bic-code.org/type-code-designation/", "verified_date": "2026-09-15" }, { "mark_id": "max-gross", "marking": "MAX GROSS", "where_it_appears": "Door mass marking", "what_it_means": "Maximum permitted combined container-and-contents mass at the stated rating", "what_it_does_not_establish": "Actual packed mass or legal vehicle-combination weight", "governing_instrument_or_reference": "Operational marks explained by BIC; CSC rating", "clause_or_section": "Mandatory Operational Marks", "applicability": "Operational marking", "minimum_size_or_format": "At least 50 mm characters; value must match CSC plate", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S02;S14", "source_url": "https://www.bic-code.org/mandatory-operational-marks/ | https://www.ecfr.gov/current/title-49/subtitle-B/chapter-IV/subchapter-B/part-451/subpart-C", "verified_date": "2026-09-15" }, { "mark_id": "tare", "marking": "TARE", "where_it_appears": "Door mass marking", "what_it_means": "Mass of the empty container", "what_it_does_not_establish": "Cargo mass or a universal tare for every unit of the same type", "governing_instrument_or_reference": "Operational marks explained by BIC", "clause_or_section": "Mandatory Operational Marks", "applicability": "Operational marking", "minimum_size_or_format": "At least 50 mm characters", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S02", "source_url": "https://www.bic-code.org/mandatory-operational-marks/", "verified_date": "2026-09-15" }, { "mark_id": "payload", "marking": "NET / PAYLOAD", "where_it_appears": "Additional door mass marking when displayed", "what_it_means": "Rated available mass: maximum gross minus tare", "what_it_does_not_establish": "Permission for a road movement or any load arrangement", "governing_instrument_or_reference": "Additional owner marking described by BIC", "clause_or_section": "Mandatory Operational Marks discussion of payload", "applicability": "Optional additional marking; not universal", "minimum_size_or_format": "No universal separate payload stencil required by this reference", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S02", "source_url": "https://www.bic-code.org/mandatory-operational-marks/", "verified_date": "2026-09-15" }, { "mark_id": "capacity", "marking": "CU. CAP. / capacity", "where_it_appears": "Capacity marking when displayed", "what_it_means": "Internal volume", "what_it_does_not_establish": "A weight limit or a guarantee that a shape fits through the door", "governing_instrument_or_reference": "Informational capacity marking illustrated by BIC", "clause_or_section": "Marking of Containers", "applicability": "Informational; not established here as universally mandatory", "minimum_size_or_format": "Volume unit must be read with the value", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S06", "source_url": "https://www.bic-code.org/marking-of-containers/", "verified_date": "2026-09-15" }, { "mark_id": "height", "marking": "Height mark for containers over 2.6 m", "where_it_appears": "Two side locations described by BIC", "what_it_means": "Container height in metres and in feet/inches", "what_it_does_not_establish": "Vehicle height, route clearance or door-opening clearance", "governing_instrument_or_reference": "Operational marks explained by BIC", "clause_or_section": "Height marking", "applicability": "Conditional height warning", "minimum_size_or_format": "At least 115 x 155 mm across black border", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S02", "source_url": "https://www.bic-code.org/mandatory-operational-marks/", "verified_date": "2026-09-15" }, { "mark_id": "electrical", "marking": "Overhead electrical danger sign", "where_it_appears": "Beside a container ladder", "what_it_means": "Warning of overhead electrical danger", "what_it_does_not_establish": "That the container is energised or climbing is otherwise safe", "governing_instrument_or_reference": "Operational marks explained by BIC", "clause_or_section": "Overhead Electrical Danger Warning", "applicability": "Conditional on ladder-equipped container", "minimum_size_or_format": "175 mm symbol; 230 mm sign minimum dimensions as described", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S02", "source_url": "https://www.bic-code.org/mandatory-operational-marks/", "verified_date": "2026-09-15" }, { "mark_id": "csc-plate", "marking": "CSC safety approval plate", "where_it_appears": "Usually combined plate on door exterior", "what_it_means": "Approval under the applicable CSC framework", "what_it_does_not_establish": "Present condition, current examination or building/land-use approval", "governing_instrument_or_reference": "CSC; US 49 CFR part 451 subpart C", "clause_or_section": "451.21, 451.23", "applicability": "Applicable approved containers", "minimum_size_or_format": "Plate at least 200 x 100 mm; BIC reference", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S05;S14;S30", "source_url": "https://www.bic-code.org/csc-combined-data-plate/ | https://www.ecfr.gov/current/title-49/subtitle-B/chapter-IV/subchapter-B/part-451/subpart-C | https://www.imo.org/en/ourwork/safety/pages/containers-default.aspx", "verified_date": "2026-09-15" }, { "mark_id": "manufacture", "marking": "Manufacture month and year", "where_it_appears": "CSC plate", "what_it_means": "When the container was manufactured", "what_it_does_not_establish": "When it was last examined", "governing_instrument_or_reference": "CSC plate requirements, explained by BIC", "clause_or_section": "CSC Combined Data Plate", "applicability": "Approval plate field", "minimum_size_or_format": "Month and year", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S05", "source_url": "https://www.bic-code.org/csc-combined-data-plate/", "verified_date": "2026-09-15" }, { "mark_id": "us-approval", "marking": "US safety approval number", "where_it_appears": "CSC plate line 1", "what_it_means": "Approving country, authority/reference and year of approval", "what_it_does_not_establish": "A recent individual examination", "governing_instrument_or_reference": "US Coast Guard regulation", "clause_or_section": "49 CFR 451.25(a)", "applicability": "US approval format", "minimum_size_or_format": "USA/(approval number including authority code)/(approval year)", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S14", "source_url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-IV/subchapter-B/part-451/subpart-C", "verified_date": "2026-09-15" }, { "mark_id": "ned", "marking": "Next examination date (NED)", "where_it_appears": "On or as close as practicable to safety plate", "what_it_means": "Month and year before which next examination is due", "what_it_does_not_establish": "That an examination occurred or the container is fit today", "governing_instrument_or_reference": "US Coast Guard regulation", "clause_or_section": "49 CFR 452.1(b)", "applicability": "Periodic examination marking", "minimum_size_or_format": "Month/year; medium capable of at least 24 months legibility", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S15", "source_url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-IV/subchapter-B/part-452", "verified_date": "2026-09-15" }, { "mark_id": "acep", "marking": "ACEP marking", "where_it_appears": "As close as practicable to CSC plate", "what_it_means": "Participation in an approved continuous examination programme", "what_it_does_not_establish": "Exemption from thorough examination or maintenance", "governing_instrument_or_reference": "US Coast Guard regulation", "clause_or_section": "49 CFR 452.7(b), 452.9", "applicability": "Approved programme; national scheme format applies", "minimum_size_or_format": "US format: ACEP/USA/(year programme approved)", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S15", "source_url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-IV/subchapter-B/part-452", "verified_date": "2026-09-15" }, { "mark_id": "customs", "marking": "Customs approval plate", "where_it_appears": "On/near door or main opening; sometimes combined plate", "what_it_means": "Approval for transport under customs seal", "what_it_does_not_establish": "Structural safety approval", "governing_instrument_or_reference": "Applicable customs convention and US customs certification", "clause_or_section": "19 CFR 115.30, 115.32, 115.40, 115.42", "applicability": "Customs-approved containers under applicable procedure", "minimum_size_or_format": "Not the CSC plate; see applicable customs approval", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S29", "source_url": "https://www.ecfr.gov/current/title-19/chapter-I/part-115", "verified_date": "2026-09-15" }, { "mark_id": "timber", "marking": "Timber treatment plate", "where_it_appears": "Combined data plate where present", "what_it_means": "Treatment information concerning the wooden floor", "what_it_does_not_establish": "Treatment of the cargo or current freedom from pests", "governing_instrument_or_reference": "BIC descriptive reference; not a universal legal requirement", "clause_or_section": "CSC Combined Data Plate", "applicability": "Where present; current national treatment acceptance not assessed", "minimum_size_or_format": "No current universal format or mandate asserted", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S05", "source_url": "https://www.bic-code.org/csc-combined-data-plate/", "verified_date": "2026-09-15" }, { "mark_id": "hazard", "marking": "Hazard placards", "where_it_appears": "Container exterior as applicable", "what_it_means": "Cargo hazard class/division when placarding requirements apply", "what_it_does_not_establish": "Container identity/type or a complete account of every possible hazard", "governing_instrument_or_reference": "PHMSA hazardous materials regulations", "clause_or_section": "49 CFR 172.504, 172.512, 172.519", "applicability": "Cargo-, quantity-, mode- and exception-dependent", "minimum_size_or_format": "General diamond minimum 250 mm; regulatory exceptions apply", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S19;S33;S16", "source_url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-172/subpart-F/section-172.504 | https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-172/subpart-F/section-172.512 | https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-172/subpart-F/section-172.519", "verified_date": "2026-09-15" }, { "mark_id": "fumigant", "marking": "FUMIGANT marking", "where_it_appears": "Prominently visible to someone attempting entry", "what_it_means": "Lading has been or is being fumigated", "what_it_does_not_establish": "That an unmarked or previously ventilated unit is free of fumigant", "governing_instrument_or_reference": "PHMSA regulation; CTU Code safety guidance", "clause_or_section": "49 CFR 173.9; CTU Code annex 5, 4.1.2.2–4.1.2.4", "applicability": "Fumigated lading; applicable rules and exceptions", "minimum_size_or_format": "Refer to 173.9; no work procedure supplied", "tier": "★", "verification_basis": "Direct read of the named source, not a claim to have reviewed full licensed ISO text", "source_ids": "S18;S27", "source_url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-173/subpart-A/section-173.9 | https://www.ilo.org/sites/default/files/wcmsp5/groups/public/%40ed_dialogue/%40sector/documents/publication/wcms_492710.pdf", "verified_date": "2026-09-15" } ], "marking_size_specs": [ { "spec_id": "id-height", "marking": "Identification number characters", "dimension_type": "Minimum character height", "value_metric": "100 mm", "value_imperial": "4 in (BIC wording)", "instrument": "BIC identification reference", "tier": "★", "source_id": "S01", "source_url": "https://www.bic-code.org/check-digit-calculator/", "qualification": "Proportionate, durable, contrasting colour", "verified_date": "2026-09-15" }, { "spec_id": "size-type-height", "marking": "Size/type code characters", "dimension_type": "Verification boundary", "value_metric": "No separate minimum established in reviewed BIC reference", "value_imperial": "", "instrument": "BIC Size & Type Code", "tier": "★", "source_id": "S03", "source_url": "https://www.bic-code.org/size-type-code/", "qualification": "The 100 mm sentence on that page expressly describes the identification sequence; it is not evidence for a separate code-height claim", "verified_date": "2026-09-15" }, { "spec_id": "mass-height", "marking": "Maximum gross and tare characters", "dimension_type": "Minimum character height", "value_metric": "50 mm", "value_imperial": "", "instrument": "BIC operational marks", "tier": "★", "source_id": "S02", "source_url": "https://www.bic-code.org/mandatory-operational-marks/", "qualification": "Applies to mass characters described by BIC", "verified_date": "2026-09-15" }, { "spec_id": "electrical-symbol", "marking": "Lightning symbol", "dimension_type": "Minimum symbol height", "value_metric": "175 mm", "value_imperial": "6.875 in (BIC wording)", "instrument": "BIC operational marks", "tier": "★", "source_id": "S02", "source_url": "https://www.bic-code.org/mandatory-operational-marks/", "qualification": "Black on yellow; ladder-equipped container", "verified_date": "2026-09-15" }, { "spec_id": "electrical-sign", "marking": "Overhead electrical danger sign", "dimension_type": "Minimum outside-border dimension", "value_metric": "230 mm", "value_imperial": "9 in (BIC wording)", "instrument": "BIC operational marks", "tier": "★", "source_id": "S02", "source_url": "https://www.bic-code.org/mandatory-operational-marks/", "qualification": "Placed beside ladder", "verified_date": "2026-09-15" }, { "spec_id": "height-size", "marking": "Height mark for containers over 2.6 m", "dimension_type": "Minimum dimensions across black border", "value_metric": "115 x 155 mm", "value_imperial": "", "instrument": "BIC operational marks", "tier": "★", "source_id": "S02", "source_url": "https://www.bic-code.org/mandatory-operational-marks/", "qualification": "Metric upper / feet-inches lower; no understatement of height", "verified_date": "2026-09-15" }, { "spec_id": "height-placement", "marking": "Height mark placement", "dimension_type": "Position and count", "value_metric": "2 locations; within 1.2 m of top and 0.6 m of right edge", "value_imperial": "4 ft and 2 ft (BIC wording)", "instrument": "BIC operational marks", "tier": "★", "source_id": "S02", "source_url": "https://www.bic-code.org/mandatory-operational-marks/", "qualification": "Near right edge of each side, below identification", "verified_date": "2026-09-15" }, { "spec_id": "csc-size", "marking": "CSC plate", "dimension_type": "Minimum rectangular dimensions", "value_metric": "200 x 100 mm", "value_imperial": "", "instrument": "CSC Annex I, as explained by BIC", "tier": "★", "source_id": "S05", "source_url": "https://www.bic-code.org/csc-combined-data-plate/", "qualification": "Permanent, non-corrosive and fireproof", "verified_date": "2026-09-15" }, { "spec_id": "csc-heading", "marking": "CSC SAFETY APPROVAL heading", "dimension_type": "Minimum letter height", "value_metric": "8 mm", "value_imperial": "", "instrument": "CSC Annex I, as explained by BIC", "tier": "★", "source_id": "S05", "source_url": "https://www.bic-code.org/csc-combined-data-plate/", "qualification": "Plate heading", "verified_date": "2026-09-15" }, { "spec_id": "csc-other", "marking": "Other CSC words and numbers", "dimension_type": "Minimum character height", "value_metric": "5 mm", "value_imperial": "", "instrument": "CSC Annex I, as explained by BIC", "tier": "★", "source_id": "S05", "source_url": "https://www.bic-code.org/csc-combined-data-plate/", "qualification": "Other text/numbers on plate", "verified_date": "2026-09-15" }, { "spec_id": "csc-fire", "marking": "US CSC plate fire performance", "dimension_type": "Legibility performance", "value_metric": "15 minutes at 540 degrees C", "value_imperial": "1,000 degrees F", "instrument": "49 CFR 451.23(b)(1)", "tier": "★", "source_id": "S14", "source_url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-IV/subchapter-B/part-451/subpart-C", "qualification": "Medium-intensity fire, mounted on specified container material", "verified_date": "2026-09-15" }, { "spec_id": "ned-durability", "marking": "US next-examination mark", "dimension_type": "Legibility capability", "value_metric": "At least 24 months", "value_imperial": "", "instrument": "49 CFR 452.1(b)", "tier": "★", "source_id": "S15", "source_url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-IV/subchapter-B/part-452", "qualification": "Not permission for an unreadable required mark before the next examination", "verified_date": "2026-09-15" }, { "spec_id": "placard-size", "marking": "US diamond hazard placard", "dimension_type": "Minimum size and inner-border position", "value_metric": "250 mm side; approximately 12.5 mm inset", "value_imperial": "9.84 in side", "instrument": "49 CFR 172.519(c)(1)", "tier": "★", "source_id": "S16", "source_url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-172/subpart-F/section-172.519", "qualification": "General rule; domestic grandfathering and other exceptions apply", "verified_date": "2026-09-15" }, { "spec_id": "placard-class", "marking": "Hazard class/division numerals", "dimension_type": "Minimum numeral height", "value_metric": "41 mm", "value_imperial": "1.6 in", "instrument": "49 CFR 172.519(c)(2)", "tier": "★", "source_id": "S16", "source_url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-172/subpart-F/section-172.519", "qualification": "Except as otherwise provided in that subpart", "verified_date": "2026-09-15" }, { "spec_id": "placard-weather", "marking": "Placard durability", "dimension_type": "Open-weather exposure", "value_metric": "30 days", "value_imperial": "", "instrument": "49 CFR 172.519(a)(1)", "tier": "★", "source_id": "S16", "source_url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-172/subpart-F/section-172.519", "qualification": "Without deterioration or substantial reduction in effectiveness", "verified_date": "2026-09-15" } ], "carrier_code_examples": [ { "code": "22G1", "length_character": "2 = 20 ft", "height_character": "2 = 8 ft 6 in", "type": "G1 general purpose", "capacity_cbm": 33.2, "max_gross_kg": 30480, "max_gross_lb_published": 67197, "tare_kg": 2350, "tare_lb_published": 5181, "max_payload_kg": 28130, "max_payload_lb_published": 62016, "source_id": "S22", "source_url": "https://www.hapag-lloyd.com/en/services-information/cargo-fleet/container/20-standard.html", "verified_date": "2026-09-15", "qualification": "One carrier fleet example, not a universal specification or average", "source_conflict": "" }, { "code": "42G1", "length_character": "4 = 40 ft", "height_character": "2 = 8 ft 6 in", "type": "G1 general purpose", "capacity_cbm": 67.7, "max_gross_kg": 32500, "max_gross_lb_published": 71650, "tare_kg": 3750, "tare_lb_published": 8267, "max_payload_kg": 28750, "max_payload_lb_published": 63383, "source_id": "S23", "source_url": "https://www.hapag-lloyd.com/en/services-information/cargo-fleet/container/40-standard.html", "verified_date": "2026-09-15", "qualification": "One carrier fleet example, not a universal specification or average", "source_conflict": "" }, { "code": "45G1", "length_character": "4 = 40 ft", "height_character": "5 = 9 ft 6 in", "type": "G1 general purpose", "capacity_cbm": 76.3, "max_gross_kg": 32500, "max_gross_lb_published": 71650, "tare_kg": 3900, "tare_lb_published": 8598, "max_payload_kg": 28600, "max_payload_lb_published": 63052, "source_id": "S24", "source_url": "https://www.hapag-lloyd.com/en/services-information/cargo-fleet/container/40-standard-high-cube.html", "verified_date": "2026-09-15", "qualification": "One carrier fleet example, not a universal specification or average", "source_conflict": "" }, { "code": "L5G1", "length_character": "L = 45 ft in carrier example", "height_character": "5 = 9 ft 6 in", "type": "G1 general purpose", "capacity_cbm": 86.0, "max_gross_kg": 32500, "max_gross_lb_published": 71650, "tare_kg": 4800, "tare_lb_published": 10552, "max_payload_kg": 27700, "max_payload_lb_published": 61067, "source_id": "S25", "source_url": "https://www.hapag-lloyd.com/en/services-information/cargo-fleet/container/45-standard-high-cube.html", "verified_date": "2026-09-15", "qualification": "One carrier fleet example, not a universal specification or average", "source_conflict": "Carrier publishes incompatible tare values: 4,800 kg and 10,552 lb; metric arithmetic used. L length mapping conflicts with BIC public table." } ], "calculation_inputs": { "kg_per_avoirdupois_lb": "0.45359237", "kg_lb_source_id": "S28", "comparison_combination_lb": 80000, "iso_668_base_2020_threshold_kg": 36000, "iso_threshold_scope": "ISO 668:2020 base text clause 5.2.2, not a read of Amendment 1:2022", "iowa_fine_rows": [ { "pounds_over": 1000, "schedule_fine": 12 }, { "pounds_over": 5000, "schedule_fine": 375 }, { "pounds_over": 10000, "schedule_fine": 1150 }, { "pounds_over": 15000, "schedule_fine": 1700 }, { "pounds_over": 20000, "schedule_fine": 2200 }, { "pounds_over": 25000, "schedule_fine": 2700 } ], "fine_source_id": "S20" } }