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NGA Center: CCSSO Common Core State Standards (CCSS) and Derivative Documents- Extended Data Scheme Move (February 2021)

Updated Jul 23, 2021

NGA Center/CCSSO Common Core State Standards (CCSS) and Derivative Documents: Extended Data Scheme Move

The following Documents will be affected:

  • NGA Center/CCSSO Common Core State Standards (CCSS)
    • English Language Arts/Literacy (2010)
    • Mathematics (2010)
  • Derivatives of CCSSO English Language Arts and Mathematics captured prior to 2017.

What is the change?

New clarification statements will be added to the affected Documents. 

The clarification statements replace clarifications currently represented in the following metadata:

  • CSV/XLS Files: Extended Description
  • API: extensions

The clarification statements represent source data, such as the statement below, highlighted in yellow, from English Language Arts/Literacy (2010) > Kindergarten > CCSS.ELA-Literacy.RF.K.2.d:


In Mathematics, the clarification statements represent source data such as the statement below, highlighted in yellow, from Grade 3 > CCSS.Math.Content.3.NF:


As well as the following statement in High School - Functions > CCSS.Math.Content.HSF-IF.B.4:

What is the scope of the change?


Documents captured before 2017 that include Extended Data Scheme (file deliveries) and “extensions” (API) data will be updated.

Documents captured beginning in 2017 will not need to be updated. The data already exists as separate statements (GUIDs) with the extender utilizations (e.g., clarification).


CCSSO English Language Arts/Literacy will have approximately 48 new clarification statements spread across all grades.

CCSSO Mathematics will have approximately 34 new clarification statements spread across all grades.

The new statement count in derivative Documents captured prior to 2017 will vary. Derivatives that are verbatim CCSS will have the same count as CCSS. Some derivative Documents will have no new clarification statements and some will have considerably more than CCSS, such as West Virginia Mathematics, which will have over 400 new clarification statements.

Why are we making this change?

We are making this change to provide consistency and predictability, which will simplify finding similar data across Documents.

When is this change taking effect?

The change will take effect on Friday, February 5, 2021, for the origin CCSS Documents.

Derivative Documents’ updates will take place weekly until complete.

What action must I take?

You may want to update your system to reflect the new clarification statements. If your system already uses the Extended Data Scheme from file deliveries or the “extensions” from API, you may decide an update is not necessary.

How can I get more information?

If you have any questions, please contact absupport@certicasolutions.com.

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