530.4. Any association of employees representing personnel of a class of employees that is certified, as of 30 June of the year following the year of publication of the territorial division order or as of the date of the transfer notice referred to in section 523.15, to represent a group of employees of the same class within an existing school board whose territory wholly or partly coincides with the territory of the new school board shall be entitled to apply for certification to represent that group of employees.