According to regulations, cosmetology products must be labeled in compliance with which set of rules?

The correct answer is the FDA, which stands for the Food and Drug Administration. The FDA establishes regulations that govern the labeling of cosmetics and personal care products. This includes requirements to ensure that products are safe for consumer use and that labels accurately reflect the ingredients and any claims made about the product. The FDA's oversight helps to protect consumers from misleading information and ensures proper safety standards.

In contrast, the other options relate to different regulatory areas: the EPA (Environmental Protection Agency) oversees products that may affect the environment, such as certain chemical substances, while OSHA (Occupational Safety and Health Administration) focuses on workplace safety and health regulations. The CDC (Centers for Disease Control and Prevention) is primarily concerned with public health and safety in terms of disease prevention and health promotion, rather than product labeling. Thus, these agencies do not have direct authority over cosmetic product labeling as the FDA does.