This document discusses how property managers can use ratio utility billing (RUBS) to generate additional revenue. It notes that RUBS allows property managers to pass on up to 30% utility price increases to tenants rather than raising rents. The document provides an overview of the history of utility billing laws and regulations, different utility billing methods (flat rate, submetered, RUBS), and the benefits of RUBS such as not requiring expensive retrofitting or capital expenditures for individual unit submetering. It also offers tips on rolling out a RUBS program such as updating leases and finding a RUBS vendor, and highlights that AppFolio offers a free RUBS feature to help property managers save time