Real estate sales agents and brokers need to be aware of Commission on Environmental Quality actions because the commission A) may decide fire insurance rates should be increased because of local drought conditions. B) may order a halt to additional local or regional development because of overpopulation. C) regulates declaration of chemical contamination (Superfund) sites that could be located near housing and affect values. D) may reduce the amount of water a subdivision is permitted to draw from an aquifer.

Real estate professionals must understand environmental regulations because actions by the Commission on Environmental Quality can directly affect property values and land use. Here's the reasoning: 1. Options (A) and (D) involve issues such as fire insurance rates and water extraction permits. Although these factors relate to the environment, they are typically managed by specialized insurance regulators or water management agencies rather than the CEQ. 2. Option (B) refers to halting development due to overpopulation, which is generally outside the direct purview of the CEQ. 3. Option (C) deals with the regulation and declaration of chemical contamination sites, commonly known as Superfund sites. The CEQ plays a key role in environmental oversight, which can include ensuring that contaminated sites are properly identified and managed. Since the presence of a nearby Superfund site can significantly affect housing prices and the desirability of an area, sales agents and brokers need to be aware of such regulatory actions. The correct answer is: \( \text{C) regulates declaration of chemical contamination (Superfund) sites that could be located near housing and affect values.} \)