What is the total length of the first national comprehensive risk survey of natural disasters?
Three years. The standard time for the first census is 65438+February 3, 20201,and the total census duration is 3 years. The year 2020 will be the stage of census preparation and pilot, and the period from 2002/KLOC-0 to 2022 will be the stage of comprehensive investigation, evaluation and zoning, thus completing the comprehensive risk investigation of natural disasters in China.