Creat a super User ID with root previllage

Dear All,

I have a RHEL V5 server , as per our security policy , the root user ID password should be protected in a sealed envelope and should not be used for administrative purposes, Can you please help me in how to create another user ID with root privilege on the RHEL

in other UNIX flavor, I used to change the ID of the new user to 0 , is this concept apply in RHEL