Ordinance Amending the Pittsburgh City Code, Title Six: Conduct, Article I: Regulated Rights and Actions; Chapter 601: Public Order, by adding Section 601.19, Social Hosts and Disorderly Gatherings and supplementing Title Six: Conduct, Article 7: Disruptive Properties: Chapter 670: Disruptive Property Abatement, by amending Section 670.02, Disruptive Property Defined, by adding the following to the list of Sections in 670.02(a)(1): 601.19 (Social Host and Underage Drinking)