Red Hat recently retired certification and exams.

For those who already passed the RHCE, they should know that Red Hat has recently stopped the RHCSS certification and three of the following associated exams:

• Red Hat Certificate of Expertise in Security: Network Services (EX333),
• Red Hat Certificate of Expertise in Directory Services and Authentication (EX423),
• Red Hat Certificate of Expertise in SELinux Policy Administration (EX429).

Source: Red Hat website.