RR zoning means Residential Rural district. A fuller description of this zoning can be found in [Article 4.2](http://www.codepublishing.com/NC/Durham/#!/4.2.html#4.2) The setbacks for this district can be found in [Article 6.2](http://www.codepublishing.com/NC/Durham/#!/6.2.html#6.2)
Allowable uses for this district can be found in [Article 5.1](http://www.codepublishing.com/NC/Durham/#!/5.1.html#5.1)