What is the main violation involving curbside containers for 9 or more dwelling units?

The main violation involving curbside containers for nine or more dwelling units is improper or misused curbside containers. This relates to the requirements for appropriate use, placement, and maintenance of curbside containers that are essential for effective waste management in multi-dwelling units. If containers are not utilized correctly, it can lead to issues such as overflow, contamination of recyclable materials, or unsafe conditions around the collection area.

Understanding the importance of properly used curbside containers is crucial in maintaining sanitary and aesthetically pleasing environments in larger residential settings. It emphasizes the responsibility of property owners or managers to ensure that all units are compliant with current sanitation guidelines, promoting community health and environmental stewardship.

The other options relate to logistical issues or specific program implementations that, while important, do not directly address the fundamental concern of how curbside containers are used.