Chapter 15.61 OLATHE STREET NAMING AND NUMBERING ORDINANCE This chapter is included in your selections. Sections: 15.61.010 Definitions. 15.61.020 Assignment of Street Names to New or Unnamed Streets. 15.61.030 Assignment of Primary Address Numbers to New or Unnumbered Streets. 15.61.040 Changes to Existing Primary Address Numbers. 15.61.050 Changes to Existing Street Names. 15.61.060 Official Street File.