Which organization offers certification for Environmental Management Systems under ISO 14001?

The International Organization for Standardization (ISO) is the correct answer because it is the body responsible for developing and publishing international standards, including ISO 14001, which pertains to Environmental Management Systems (EMS). ISO 14001 outlines the criteria for an effective EMS, helping organizations improve their environmental performance through more efficient use of resources and reduction of waste.

ISO itself does not provide certification; instead, it develops the standard that certification bodies use to evaluate and certify organizations as compliant with the EMS framework. These certification bodies must be accredited and operate in accordance with ISO guidelines. Therefore, when an organization is certified to ISO 14001, it is recognized for meeting the international standards set forth by ISO, ensuring that their environmental management practices are assessed against globally recognized criteria.

The other organizations listed, such as ANSI, EPA, and OSHA, serve different functions and do not issue ISO certifications. ANSI is involved in accreditation and standards development in the U.S.; the EPA focuses on environmental protection and regulation in the U.S. but does not certify EMS; and OSHA is responsible for workplace safety regulations.