The Safety and Tritium Applied Research (STAR) facility provides the capabilities and infrastructure to support tritium research activities important to fusion research and development. Atmospheric tritium emissions are an expected byproduct of STAR laboratory operations and are monitored in accordance with federal regulations. This paper describes the STAR facility Stack Tritium Monitoring System, presents and discusses the annual STAR facility tritium emissions from 2004 to 2017, and briefly describes ongoing efforts to reduce atmospheric tritium emissions from the facility stack. Modeling calculations indicate that STAR facility atmospheric tritium emissions do not pose any health threat to the maximum exposed individual member of the public.