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Level 3 may refer to:
- Level 3 Communications, an Internet service provider
- Biosafety level 3, a containment procedure for dangerous biological materials
- Keyboard level 3, usually consisting of a set of characters input using the AltGr key
- Level III data, digital images, derived products, and echo attributes of the U.S. National Weather Service's WSR-88D weather radar
- Level 3 (TV series), an Australian television series about video games
|This disambiguation page lists articles associated with the title Level 3.
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