For Colombia, operations, finance, and data owners should jointly approve waste-oil disposal instead of relying on a verbal handover. After the supplier provides the source ledger, calculation sheet, method note, and approval record, the dealer should recalculate whether waste-oil generated and disposed quantities reconcile against the oil-change work orders, and check the validity of the disposal contractor's evidence. Link waste-oil disposal to reporting period, boundary, source, and calculation version in the acceptance sheet rather than using only a model or project name. Disposal qualifications and transfer registration for waste oil in Colombia follow environmental competent-authority rules and are confirmed by the licensed institution, with applicable contractual terms also observed. Before closing waste-oil disposal, review the corresponding import checklist. Waste-oil data whose disposal quantity cannot be reconciled must not be used in external statements; after a method change, recalculate and retain the prior version. If one document covers several sustainability records matters, record a separate accepted or open decision for waste-oil disposal.