Georgia Residential Contractor Practice Exam 2025 - Free Residential Contractor Practice Questions and Study Guide

The correct answer is that an authorized representative must install the Aerobic Treatment Unit (ATU). This is because the installation of an ATU is regulated due to its complexity and the critical nature of its function in managing wastewater treatment systems. An authorized representative typically has specialized training and understanding of the installation requirements and local regulations pertaining to these systems, ensuring they are installed correctly and safely.

In many jurisdictions, including Georgia, the installation of such systems is often subject to strict guidelines to protect public health and the environment. These representatives are usually professionals who have obtained the necessary certifications to install aerobic treatment units, which may include both technical knowledge and compliance with state and local regulations.

In contrast, other individuals or professions, such as a general contractor, licensed plumber, or even a homeowner, may lack the specific authority or training required to perform this specialized installation. This ensures not just that the unit is installed properly, but also that it adheres to local codes and standard practices for sewage treatment, thereby protecting the community's health and environment.