This part of the iSHARE scheme is considered normative and is therefore compliant with RFC 2119.
This page describes (and prescribes) how, in iSHARE, delegation is communicated between different parties.
In iSHARiSHARE, E delegation evidence expresses the delegation of rights from a delegator (the party that delegates rights; the policyIssuer) to the delegate (the party that receives the delegated rights; i.e. the accessSubject). Rights are expressed in rules in terms of allowed actions to be performed on resources, under the license(s) as defined in policySets.
...