When the city engineer certifies in writing that all of the requirements of section 9-4-1-1 of this chapter have been complied with, and when the city council is satisfied with the final plat, the council may by motion approve said plat and authorize the mayor and city clerk, respectively, to sign said plat on behalf of the city, and to attest and seal on a proper certificate affixed to said plat. (Ord. 99-40-0, 8-25-1999)