The 2030 Census Memorandum Series documents significant decisions, actions, and accomplishments of the 2030 Census Program for the purpose of informing stakeholders, coordinating interdivisional efforts, and documenting important historical changes. 

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

1. A major program level decision that will affect overall design or have significant effect on the 2030 Census operations or systems.

2. A major policy decision or change that will affect the overall design or significantly impact on the 2030 Census operations or systems.

3. A report that documents the research, testing, evaluations, and assessments for 2030 Census operations or systems.