As different countries and regions enact stricter requirements and move from voluntary to mandatory programs, it has become vital that OEMs continually track the most recent developments to ensure compliance and avoid costly delays or fines. While many countries are establishing voluntary programs harmonized to the international efficiency marking protocol system first established by Energy Star, the United States, Canada, and the European Union are the only regions to mandate specific efficiency levels by law. Level IV is currently mandated by Canada, Level V efficiency standards are mandated by European Union countries, while the United States enforces the most stringent standard with the recent adoption of Level VI. While the United States is the only governing body to enforce compliance to the Level VI standard, most external power supply manufacturers have adjusted their product portfolios to meet these requirements. By doing so, power supply vendors are able to provide their OEM customers with a universal power supply platform for their products that ship globally. Similarly, power supply manufacturers are beginning to address the latest EU CoC requirements in order to provide compliance ahead of these becoming mandatory Ecodesign rules.