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Returning CSI users: Please use your existing CSINet site credentials (case-sensitive!) when logging in. If you have not registered on MasterFormat.com, you will need to do so using these existing credentials before you will be able to access MasterFormat.com.

Please note: Only members of CSI or CSC, or individuals who have purchased MasterFormat will be granted access to the "Numbers and Titles" and "Intro and Guides" portions of MasterFormat.com. If after logging in you do not have access, you can do one of the following to gain access to these areas:

Purchase the latest MasterFormat edition to gain access for two years from date of purchase
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All users can propose a revision to MasterFormat on the Revisions page after logging in.

If you have any questions, please contact masterformat@csinet.org.

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Enter your username and password. If you do not yet have a MasterFormat.com account, please register. You may also purchase a printed copy of MasterFormat.

Returning CSI users: You will need to register on masterformat.com before using the site. Please use your existing CSINet site credentials (case-sensitive!) when registering for the first time or logging in.

Only users who have purchased MasterFormat or are members of CSI or CSC will be granted access to the Numbers and Titles and Intro & Guides portions of the site. If you do not currently have access you can do one of the following to gain access:

Purchase the latest MasterFormat edition to gain access for two years
Renew your membership in CSI or CSC
Become a CSI member or CSC member

If you have any questions, please contact masterformat@csinet.org

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