# babel-preset-stage-1 > Babel preset for stage 1 plugins. The gist of Stage 1 is: > **Stage 1**: proposal > > **What is it?** A formal proposal for the feature. > > **What’s required?** A so-called champion must be identified who is responsible for the proposal. Either the champion or a co-champion must be a member of TC39 (source). The problem solved by the proposal must be described in prose. The solution must be described via examples, an API and a discussion of semantics and algorithms. Lastly, potential obstacles for the proposal must be identified, such as interactions with other features and implementation challenges. Implementation-wise, polyfills and demos are needed. > > **What’s next?** By accepting a proposal for stage 1, TC39 declares its willingness to examine, discuss and contribute to the proposal. Going forward, major changes to the proposal are expected ## Install ```sh npm install --save-dev babel-preset-stage-1 ``` ## Usage ### Via `.babelrc` (Recommended) **.babelrc** ```json { "presets": ["stage-1"] } ``` ### Via CLI ```sh babel script.js --presets stage-1 ``` ### Via Node API ```javascript require("babel-core").transform("code", { presets: ["stage-1"] }); ``` ## References - Chapter "[The TC39 process for ECMAScript features](http://exploringjs.com/es2016-es2017/ch_tc39-process.html)" in "Exploring ES2016 and ES2017" by Axel Rauschmayer