Rules to follow when using and mixing disinfectants are written by:

• A. The EPA
• B. The Government
• C. The local health department
• D. The manufacturer

Answer: (D)

Disinfectant use instructions come from the product label, which is created by the manufacturer. The label specifies exactly how to mix the product (dilution ratios), what surfaces and types of soils it can be used on, how long to leave it in contact with the surface, and all safety precautions and PPE requirements. That guidance is legally binding and must be followed to ensure the product works and to protect health and safety. Regulators like the EPA review and approve the label to ensure it meets safety and efficacy standards, but the actual rules—the specific mixing instructions and usage directions—are written by the manufacturer and then approved for inclusion on the label. This is why following the label is essential whenever using or mixing a disinfectant.