Which of these is NOT a regulator?

The International Organization for Standardization (ISO) is focused on developing and publishing international standards across various industries and sectors. Unlike regulatory agencies that enforce laws and regulations to protect public interest, ISO serves as a voluntary standard-setting body. Organizations may choose to adopt ISO standards to enhance quality, safety, and efficiency, but ISO itself does not have the authority to impose regulations or enforce compliance. In contrast, the other entities listed—like the EPA, FDA, and SEC—are all governmental agencies with specific regulatory powers to ensure safety, protect public health, and maintain fair practices within their respective domains.