Which of the following is regulated by OLAW?

The Office of Laboratory Animal Welfare (OLAW) is primarily focused on ensuring the humane care and use of laboratory animals in research, teaching, and testing. This includes overseeing compliance with the Public Health Service (PHS) Policy on Humane Care and Use of Laboratory Animals. One of OLAW's critical roles is related to occupational health and safety, particularly concerning researchers and staff handling laboratory animals. This oversight includes ensuring that animal research is conducted in a way that protects both the animals involved and the individuals working with them.

While animal breeding practices can be influenced by other guidelines and regulations, and environmental impact assessments and food safety regulations fall more under the purview of different agencies, such as the Environmental Protection Agency (EPA) or the Department of Agriculture (USDA), OLAW specifically regulates aspects of occupational health in the context of animal research. Therefore, the correct answer ties closely to OLAW's responsibility to promote safe practices for individuals involved in animal research protocols.