Arctos (arctosdb.org) is an affordable, collaborative collection management solution serving global data on over 3.5 million biodiversity and cultural records and 775,000 media objects from more than 158 collections and serves as the backbone for Harvard’s MCZBase. Arctos is also a community of museum professionals who collaborate on best practices, trainings, and webinars, and who work together to improve data richness and expand functionality. In 2017, the MSB, MVZ, and UAM received funding from the Global Genome Biodiversity Network (GGBN) to standardize tissue sample and quality vocabulary, provide public information on permits, implement parent-child relationships between tissues and subsamples, and develop a migration pathway to GGBN. The results of the first test data submitted to the GGBN pipeline showed that there were additional integration issues that required programming support and consultation in order to publish Arctos collections data through GGBN. Specifically, Arctos employs an event-based model which enables some records to have multiple occurrences. For example, multiple mark/recapture collecting events of a single individual result in parts collected from different places and dates associated with a single catalog number. The interpretation of what constitutes an occurrence differs between GGBN and GBIF, and consequently, the Arctos resources for GGBN and GBIF must be published separately. On resolution of these issues in spring 2019, the Denver Museum of Nature & Science--currently a GGBN associate member--will be joining as the fourth Arctos institution serving data to GGBN. In addition, the Arctos community will provide GGBN with existing host-parasite use cases, which are well developed in Arctos, and will share the developing model for environmental DNA. A standardized form to submit Arctos data directly to GenBank has been developed and is in process of being tested with community feedback.