# Code Purple

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> Markdown URL: https://mediated.wiki/source/Code_Purple.md
> Source: https://en.wikipedia.org/wiki/Code_Purple
> Source revision: 1042153531
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

**Code Purple** can mean:

- the US Environmental Protection Agency code for an [air quality index](/source/Air_quality_index) between 201 and 300
- a [hospital emergency code](/source/Hospital_emergency_code)
- The US codename for the Japanese [Type B Cipher Machine](/source/Type_B_Cipher_Machine)

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Adapted from the Wikipedia article [Code Purple](https://en.wikipedia.org/wiki/Code_Purple) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Code_Purple?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.