If an LSSO fails to recertify, what action must they take next?

When an LSSO (Lean Six Sigma Officer) fails to recertify, the necessary action is to retake the class. This requirement typically underscores the importance of maintaining up-to-date knowledge and skills in the methodologies of Lean Six Sigma. The recertification process is designed to ensure that practitioners stay current with best practices and standards, which may evolve over time. Attending or repeating the class allows the individual to refresh their understanding of the principles, tools, and techniques involved, reinforcing their capability to effectively apply Lean Six Sigma processes.

By requiring the individual to retake the class, the certification body affirms the value of continual learning and adaptation in the field, which is essential for successful application of Lean Six Sigma methodologies in practice. Thus, retaking the class is the most appropriate and necessary next step to regain certification.