US: Republic Services, a national waste disposal service in the US, combines GIS and other public data in an advanced auditing service to give cities and counties a more accurate count of the number of units the company serves for them. For example, if a customer is placing additional trash bins in front of a vacant home, GIS-based auditing data enables the municipality to see where that extra refuse and cost are coming from and investigate the matter.
GIS-based auditing assists cities and counties in preparing tax rolls for billing. The more reliable numbers also help optimise collection routes, reducing emissions and improving the environment.
Source: Government Technology