AWS lately introduced AWS Certified Machine Learning Specialty certification, for those professionals who are into Machine Learning, and are proficient in AWS cloud platform. This is a Specialty level certification exam, and it means you need to be proficient in it to acquire the certification. One of the pre-requisites for becoming eligible to attempt the exam is to have at least 1-2 years of experience in developing, architecting, and playing around with Machine Learning or Deep Learning workloads, on the AWS cloud platform.
The best way to get yourself certified with this Specialty level certification is to enroll in a good AWS certification course, that would help you to become proficient in the cloud platform, along with projects that would boost your practical skills, which are most needed for clearing AWS Specialty level certifications. If you are completely new to the AWS platform, I would suggest you watch our YouTube video on Which AWS Certification Should I Choose to get a better idea.