The first major deadline for Census operations is nearly two years before the Census forms are counted. The Local Update of Census Addresses program starts in 2017 with a deadline of April 2018. These are the other major milestones that lead up to the redistricting counts being delivered by March 2021.Download report: "7 Things to Do to Reduce the Likelihood of Undercount in Census 2020"
Nonprofits can conduct address canvassing in target neighborhoods with likelihood of missing addresses of unconventional housing. This can be done even before the official Census MAF file is released to local governments