Creative Commons — Attribution 4.0 International — CC BY 4.0

Skip to content

Help us build a vibrant, collaborative global commons

Donate Now
This page is available in the following languages:
Creative Commons

# Creative Commons License Deed

## Attribution 4.0 International (CC BY 4.0)

This is a human-readable summary of (and not a substitute for) the license. Disclaimer.

### You are free to:

- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material
- for any purpose, even commercially.

- The licensor cannot revoke these freedoms as long as you follow the license terms.

### Under the following terms:

- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

  Attribute this work:

- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

### Notices:

- You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.
- No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.

This content is freely available under simple legal terms because of Creative Commons, a non-profit that survives on donations. If you love this content, and love that it's free for everyone, please consider a donation to support our work.

When you share, everyone wins.

Contribute today to Creative Commons

- $5
- $15
- $25
- $50

Disclaimer

This deed highlights only some of the key features and terms of the actual license. It is not a license and has no legal value. You should carefully review all of the terms and conditions of the actual license before using the licensed material.

Creative Commons is not a law firm and does not provide legal services. Distributing, displaying, or linking to this deed or the license that it summarizes does not create a lawyer-client or any other relationship.

What does "Attribute this work" mean?

The page you came from contained embedded licensing metadata, including how the creator wishes to be attributed for re-use. You can use the HTML here to cite the work. Doing so will also include metadata on your page so that others can find the original work as well.

The applicable mediation rules will be designated in the copyright notice published with the work, or if none then in the request for mediation. Unless otherwise designated in a copyright notice attached to the work, the UNCITRAL Arbitration Rules apply to any arbitration.

More info.

If supplied, you must provide the name of the creator and attribution parties, a copyright notice, a license notice, a disclaimer notice, and a link to the material. CC licenses prior to Version 4.0 also require you to provide the title of the material if supplied, and may have other slight differences.

More info.

In 4.0, you must indicate if you modified the material and retain an indication of previous modifications. In 3.0 and earlier license versions, the indication of changes is only required if you create a derivative.

Marking guide.

More info.

You may also use a license listed as compatible at https://creativecommons.org/compatiblelicenses

More info.

A commercial use is one primarily intended for commercial advantage or monetary compensation.

More info.

Merely changing the format never creates a derivative.

More info.

The license prohibits application of effective technological measures, defined with reference to Article 11 of the WIPO Copyright Treaty.

More info.

The rights of users under exceptions and limitations, such as fair use and fair dealing, are not affected by the CC licenses.

More info.

You may need to get additional permissions before using the material as you intend.

More info.