Challenging the Census Bureau Population Estimates: The Census Bureau County Estimates are used as controls for weighting the American Community Survey samples. Therefore, the ACS results are highly reliant on reasonable population estimates. The Census Bureau has a system in place to challenge the estimates.
CNSTAT project: Using the American Community Survey: Benefits and Challenges
All Federal Highway Administration (FHWA) information technology systems will be unavailable, Friday, October 28, at 10:00 p.m. to Sunday, October 30, at 11:59 p.m., EDT, while work is being performed on the network. During that time, users will not be able to access any FHWA systems.