Which of the following issues is NOT covered by health codes?

Health codes are designed to establish regulations that ensure food safety and public health within food establishments. When considering the options presented, issues related to food export are typically governed by separate regulations and guidelines. These guidelines can fall under trade laws and international regulations rather than health codes that focus domestically on the handling, preparation, and serving of food to ensure safety and sanitation standards are maintained.

Food labeling requirements, sanitizing food establishments, and training food service employees are all critical components of health codes, as they address the accurate representation of food products, proper hygiene practices, and ensuring that employees are adequately trained to handle food safely. This is essential for preventing foodborne illnesses and maintaining a safe food environment. Therefore, while food export may have health implications, it is not directly governed by local or state health codes, making it the correct response to indicate what is not covered by health codes.