For the AWS Certified AI Practitioner, AWS Certified Machine Learning Engineer - Associate, and AWS Certified Machine Learning - Specialty exams, a new product, service, or feature must be generally available for 3 months. For all other exams, a new product, service, or feature must be generally available for 6 months before it appears on a certification exam. This guideline applies only to certification exams, not training. Training will cover new services and features more quickly.