EHC OneWindow Board Login New EHC OneWindow Remittance System Effective January 1, 2020 EHC OneWindow Remittance System EHC Support: ehcsupport@usedoilrecycling.ca EHC OneWindow Remitter User Guide EHC OneWindow FAQs Search for a drop-off location nearest you! For large quantities, find a collector. Category: NewsFebruary 14, 2020Tags: UOMARelated articlesSpotlight on Used AntifreezeAugust 20, 2025UOMA Recovers 83.6% of Used Oil in 2024June 20, 20252024 Greenhouse Gas EstimatesMay 1, 2025
