File: Supply chain traceabilityEvidence checked 27 October 2026General information only
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The Custody File: identity, events, evidence
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247 guides across 20 clusters. Each one opens with an evidence file: the question it answers, the evidence level and the first check. Page 3 of 7, guides 83 to 123.

File 17 - Supplier evidence managementEvidence gaps and their treatmentA gap is a missing, expired, or inconsistent piece of evidence. This guide covers how gaps are recorded, prioritised, and closed..GuideFile 07 - Data governance and evidenceEvidence governance: what a record can supportGovernance decides who owns traceability data, who may change it, how long it is kept, and what it may be used to support. This guide sets out that governance i.File guideFile 17 - Supplier evidence managementEvidence management systemsA system can track evidence, but it cannot judge it. This guide covers systems for evidence management and their limits..GuideFile 07 - Data governance and evidenceEvidence quality gradesNot all evidence carries the same weight. This guide proposes a simple grading of evidence, from a supplier declaration to an independent test, and how each gra.GuideFile 03 - Event records and custody eventsException events and correctionsDamaged goods, short shipments, and data errors are events too. This guide covers how exceptions are recorded without rewriting history..GuideFile 15 - Supplier mapping and facility identificationFacility identification numbersA facility identifier must be stable and unique. This guide covers facility identification systems and registers..GuideFile 15 - Supplier mapping and facility identificationFacility visits and mappingA visit confirms that a facility exists and does what the map says. This guide covers visits as a mapping check..GuideFile 18 - Food and agriculture traceabilityFood distribution and cold chain recordsDistribution records include temperature as well as movement. This guide covers cold chain records as part of a food trace..GuideFile 18 - Food and agriculture traceabilityFood import traceabilityImported food carries a trace across borders. This guide covers import records, supplier verification, and border checks..GuideFile 18 - Food and agriculture traceabilityFood lot identity and harvest recordsA food lot starts at harvest, catch, or intake. This guide covers harvest records and lot identity for food..GuideFile 18 - Food and agriculture traceabilityFood processing genealogyFood processing mixes, heats, and packs lots. This guide covers genealogy through food processing..GuideFile 18 - Food and agriculture traceabilityFood recall traceback in practiceA food recall traceback must find the source lot and every destination quickly. This guide works through that exercise..GuideFile 18 - Food and agriculture traceabilityFood traceability and food safety cultureA trace works when staff record events as they happen. This guide connects traceability to food safety culture..GuideFile 18 - Food and agriculture traceabilityFood traceability data for consumersConsumer facing traceability data summarises a chain. This guide covers what a consumer summary should and should not claim..GuideFile 18 - Food and agriculture traceabilityFood traceability for fresh produceFresh produce has short shelf life and fast movement. This guide covers produce traceability under time pressure..GuideFile 18 - Food and agriculture traceabilityFood traceability for meat and dairyMeat and dairy traceability involves animals, herds, and processing batches. This guide covers those chains..GuideFile 18 - Food and agriculture traceabilityFood traceability for processed foodsProcessed foods combine ingredients from many sources. This guide covers ingredient genealogy for processed foods..GuideFile 18 - Food and agriculture traceabilityFood traceability for seafoodSeafood traceability follows catch, landing, processing, and distribution. This guide covers that chain..GuideFile 18 - Food and agriculture traceabilityFood traceability regulations in generalFood traceability rules exist in many jurisdictions, with different scopes. This guide explains the general pattern without blending jurisdictions..GuideFile 18 - Food and agriculture traceabilityFood traceability: from field to shelfFood traceability follows lots from harvest or catch, through processing and distribution, to retail. Speed and batch scope decide whether a food trace protects.File guideFile 13 - United States import enforcementForced labour and customs brokersA customs broker handles entry, but the importer remains responsible for the goods. This guide explains the broker and importer roles..GuideFile 13 - United States import enforcementForced labour enforcement and small importersSmall importers face the same border rules with fewer staff. This guide covers proportionate preparation..GuideFile 13 - United States import enforcementForced labour import risk by sectorRisk varies by sector and product. This guide explains sector risk assessment without making a finding about any supplier..GuideFile 09 - Recall traceback and forward tracingForward tracing to customersForward tracing follows affected product to its customers. This guide covers customer lists, shipment records, and the communication that follows..GuideFile 02 - Lot, batch and serial traceabilityFrom product code to traced unitA product code identifies a type. This guide works through the step from type level identity to lot, batch, or serial level identity, and what changes in the re.GuideFile 19 - Textiles and apparel traceabilityGarment manufacturing genealogyGarment genealogy connects a finished garment back to fabric lots and trims. This guide covers that record..GuideFile 06 - Manufacturing genealogyGenealogy and work in progressWork in progress sits between inputs and outputs. This guide covers recording work in progress so a trace can find it mid-process..GuideFile 06 - Manufacturing genealogyGenealogy errors and their causesWrong lot consumption, unrecorded rework, and manual entry errors are the usual genealogy failures. This guide covers their causes and checks..GuideFile 06 - Manufacturing genealogyGenealogy for blended materialsBlending mixes lots into a new identity. This guide covers blended genealogy and the limits of a backward trace from a blend..GuideFile 06 - Manufacturing genealogyGenealogy for continuous productionContinuous production has no natural batch boundary. This guide covers time based lots, campaigns, and the genealogy of a continuous run..GuideFile 06 - Manufacturing genealogyGenealogy for contract manufacturingA contract manufacturer holds the genealogy for a brand owner product. This guide covers the record, access, and handover duties in that arrangement..GuideFile 06 - Manufacturing genealogyGenealogy for multi-stage productionMulti-stage production creates intermediate batches with their own identities. This guide follows genealogy through several stages..GuideFile 06 - Manufacturing genealogyGenealogy for packaging and labellingPackaging creates a new unit with its own identity. This guide covers the link between bulk product, packaging, and the labelled unit..GuideFile 06 - Manufacturing genealogyGenealogy retention and retrievalA genealogy record that cannot be retrieved in hours is of limited use in a recall. This guide covers retention and retrieval design..GuideFile 07 - Data governance and evidenceGovernance for shared traceability platformsA shared platform holds data for many parties. This guide covers governance of a shared platform, including exit and data return..GuideFile 14 - Responsible sourcingGrievance mechanisms in sourcingA grievance mechanism gives workers and communities a channel to raise concerns. This guide explains such mechanisms in general terms..GuideFile 08 - Interoperability and standardsGS1 identifiers and traceabilityGS1 identifiers are the most widely used product and logistics identifiers. This guide explains the main identifier types and how they are used in a trace..GuideFile 02 - Lot, batch and serial traceabilityIdentifier formats and uniquenessAn identifier that repeats across suppliers, or that changes format mid-chain, will break a trace. This guide covers format, uniqueness, and the discipline of i.GuideFile 05 - Supplier data agreementsIdentifiers in supplier agreementsAgreed identifiers are the foundation of supplier data. This guide covers identifier formats, uniqueness, and the duty to notify changes..GuideFile 02 - Lot, batch and serial traceabilityIdentity carriers: barcodes and RFIDA carrier holds an identifier; it is not the identifier itself. This guide compares barcodes, two dimensional codes, and RFID as carriers, and the record each o.GuideFile 02 - Lot, batch and serial traceabilityIdentity errors and how to catch themMislabelled lots, duplicated serials, and wrong case contents are identity errors with traceability consequences. This guide covers checks that catch them early.Guide