There is not a plan B, because we do not have the capacity to replace the reliable information that we get from the long-form census.
I was cut off twice before, so if I could, I would answer the previous questioner on whether or not I believed the chief statistician, who said “...we are confident that the national household survey will produce usable and useful data that will meet the needs of many users.” The questioner neglected to finish the paragraph, which concluded: “It will not, however, provide a level of quality that would have been achieved through a mandatory long-form census.”
Moreover, the chief statistician concluded:
We have never previously conducted a survey on the scale of the voluntary national household survey, nor are we aware of any other country that has. The new methodology has been introduced relatively rapidly with limited testing. The effectiveness of our mitigation strategies to offset non-response bias and other quality limiting effects is largely unknown. For these reasons, it is difficult to anticipate the quality—