This chapter shall take effect immediately upon its passage, approval and publication as required by law; provided, all existing uses and structures shall be deemed nonconforming and the provisions of Chapter 22.36 of this code shall apply; provided further, that any persons maintaining livestock in excess of the limitations contained in this chapter shall, within thirty days of its enactment, register with the city clerk, on forms provided by the city clerk, the number, type, and location of each excess animal and thereafter when any animal in excess of the limitations set forth in this chapter dies, is sold, or is removed from the property for a period in excess of thirty days, the animal shall not be returned nor replaced if that would result in exceeding the limitation set forth in Section 6.20.020. Any violation of this provision shall subject the violator to the provisions of Section 6.20.080. (Ord. 724 § 7, 1993).