View source for Federal Elementary Flow List

{{Program
|ProgramName=Federal Elementary Flow List
|ProgramType=Program
|OrgSponsor=Partnership
|TopOrganization=Environmental Protection Agency
|CreationLegislation=None
|Purpose=Federal Elementary Flow List standardizes life cycle assessment terms for consistent, accessible environmental impact data across federal tools.
|Website=https://www.lcacommons.gov/lca-collaboration/FEDEFL
|ProgramStart=2019
|InitialFunding=Not publicly specified
|Duration=Ongoing
|Historic=No
}}
The '''Federal Elementary Flow List''' (FEDEFL) is a standardized dataset and framework launched in 2019 under the [[Federal Life Cycle Assessment Commons]] (FLCAC) to enhance the interoperability of life cycle assessment (LCA) data across U.S. federal agencies and beyond. 

Developed through a collaboration led by the [[Environmental Protection Agency]] (EPA) with support from the [[Department of Agriculture|USDA]], [[DOE]], and others, FEDEFL defines over 15,000 elementary flows—resources and emissions entering or leaving systems—using a structured nomenclature of flowables, contexts, and units, accessible via tools like the fedelemflowlist Python package.<ref>{{cite web |url=https://www.lcacommons.gov/lca-collaboration/FEDEFL |title=FEDEFL Overview |publisher=USDA National Agricultural Library}}</ref> Its adoption, notably in FLCAC repositories like the USLCI Database since 2020, marks a shift toward unified LCA standards, with updates like FEDEFL v2.0 in 2022 enhancing mapping capabilities.

{{Official URL (simple)|url=https://www.lcacommons.gov/lca-collaboration/FEDEFL}}