The districts are bounded as shown on a map entitled "Zoning Map—City of Centralia" and identified by the approving signatures of the mayor and city clerk, and is adopted by reference and declared to be a part of this title and shall be located on file in the office of the city clerk.

If changes are made on the zoning map, such changes shall be entered on the zoning map within five days after the amending ordinance has been approved by the city council. No amendment shall become effective until such change has been entered upon the zoning map.

The several zoning districts permit certain specific uses and similar or related uses. The determination of similarity or relatedness to the specific uses shall be made by the community development director.

If the community development director is unable to make such interpretation, or if he finds that a proposed use is not sufficiently similar or related to the specific uses permitted in a given district, he or the applicant may request that the site plan review committee make such interpretation.

Whenever the community development director or the site plan review committee finds that the proposed use is similar or related to the permitted uses in a given district, the enforcing officer shall post the property advising the public of the proposed use.

Written protest received within seven calendar days from the time of posting from a property owner or owners within a two-hundred-foot radius of the proposed use shall require a public hearing.

In the absence of such protest, the finding of the community development director or the site plan review committee shall be final.