Name is not in use. No RR of any type is owned by a specified NAME. Note that this prerequisite IS satisfied by empty nonterminals.
For this prerequisite, a requestor adds to the section a single RR whose NAME is equal to that of the name whose nonownership of any RRs is required. RDLENGTH is zero and RDATA is therefore empty. CLASS must be specified as NONE. TYPE must be specified as ANY. TTL must be specified as zero (0).