Illinois Plumbing Code Practice 2025 – 400 Free Practice Questions to Pass the Exam

The Illinois Plumbing Code is primarily focused on aspects directly related to the safety, efficiency, and proper functioning of plumbing systems, which includes the design, installation, and inspection of these systems. The regulation of marketing strategies for plumbing companies falls outside the scope of plumbing safety and operational standards. The code is concerned with ensuring that plumbing installations comply with various safety standards and performance criteria rather than how companies market their services or products to the public. Therefore, the inclusion of marketing strategies does not align with the regulatory framework established by the Illinois Plumbing Code, making this the correct choice.

The other options, such as the design, installation, and inspection of plumbing systems, are fundamental elements regulated by the code to ensure public health and safety, preventing issues such as water contamination or inadequate waste removal.