DNSSEC Lookaside Validation (DLV) Domain Name System Security (DNSSEC) relies on a top-down certification chain whereby security information about each zone is introduced by its parent. This memo describes an instance of local policy whereby security information can be introduced by cooperating third parties, thus enabling deployment of DNSSEC in zones whose parents are not yet secure. This is an early deployment aid, and is not intended to replace DNSSEC's top-down certification chain.