1. Short title This Act may be cited as the Learning Excellence and Good Examples from New Developers Act of 2019 or the LEGEND Act of 2019 . 2. Definitions In this Act: (1) Administration The term Administration means the National Oceanic and Atmospheric Administration. (2) Administrator The term Administrator means the Under Secretary of Commerce for Oceans and Atmosphere and Administrator of the National Oceanic and Atmospheric Administration. (3) Model The term model means any numerical model of the Earth's system or its components produced by scientists employed by the Administration. (4) Operational model The term operational model means any model that has an output used by the Administration for operational or public service functions. (5) Open source code The term open source code means computer code or programming language that is available for public use or modification. 3. Purposes The purposes of this Act are— (1) to support innovation in modeling by allowing interested stakeholders to have easy and complete access to the models used by the Administration; and (2) to use vetted innovations arising from access provided under paragraph (1) to improve modeling by the Administration. 4. Requirement to make certain operational models available to the public (a) In general The Administrator shall make available to the public the following: (1) Current and future operational models developed by the Administration, in the form of open source code for a period consistent with applicable records retention requirements. (2) All Government-owned data, subject to redistribution rights, associated with such models and used in operational forecasting by the Administration, including— (A) relevant metadata; (B) data used for current operational forecasts