Human Factors International (HFI) have a certification program for User experience (UX) practitioners called the Certified Usability Analyst. Professionals with this title have a reputation of being dedicated to UX and armed with the latest industry knowledge and best practices.
Currently, there are over 8000 Certified Usability Analysts all around the world. In order to get a certification with Human Factors International, professionals must pass an examination demonstrating their mastery of the fundamental principles of user-centered design.
You can take the CUA certification exam without any training or preparation. However, human factors international offers courses on, User Experience Foundations, User-centered Analysis and Conceptual Design, The Science and Art of Effective Web and Application Design, and Practical Usability Testing to provide a solid foundation before taking the test.