There are several types of ORC Certifiates; International, Club, Multi-hull, One Design and Superyacht. Applying for an ORC certificate is available through US Sailing and is a process that will result in you having a new appreciation for what it takes to have an accurate and fair rating for your boat. Click the link to find out how to go about getting an ORC certificate for your boat.

https://orc.org/sailors/orc-certificates