The 2020 Census Memorandum Series documents significant decisions, actions, and accomplishments of the 2020 Census Program for the purpose of informing stakeholders, coordinating interdivisional efforts, and documenting important historical changes.

A memorandum generally will be added to this series for any decision or documentation that meets the following criteria:

1.  A major program level decision that will affect the overall design or have significant effect on the 2020 Census operations or systems.

2.  A major policy decision or change that will affect the overall design or significantly impact the 2020 Census operations or systems.

3. A report that documents the research and testing for the 2020 Census operations or systems.