Signs prohibiting or permitting smoking as appropriate under this chapter shall be posted conspicuously at each entrance to city buildings and facilities. For city parks, trails and open space, the director of the parks and recreation department shall post signs prohibiting smoking at locations reasonably determined by the director to provide notice of the prohibition. The boundary between a nonsmoking area and a smoking permitted area shall be clearly designated so that persons may differentiate between the two areas. [Ord. 2015-11-045 § 1; Ord. 10027, 1990].