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Please note that the ACS 2020 PUMS 1-year file uses experimental weights to account for the effects of the COVID-19 pandemic on the ACS 2020 data products.
Users should proceed with caution when using the ACS 2020 PUMS 1-year file and the Census Bureau advises against comparing it to other ACS PUMS sample years.
For more information about this file and the corresponding experimental weights, please visit this page:
ACS and COVID-19: Guidance for Using the PUMS with Experimental Weights
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