If one considers what are commonly called "clearance" and "classification" as initiator-bound ACI and target-bound ACI, respectively, under an appropriate access control policy, one obtains what is essentially a label-based scheme. [ISO 10181-3] In this case, there is a policy to bind clearance to Initiators (e.g., persons who work with blood need HIV clearance) and policy for Resources (e.g., Human Immunodeficiency Virus information is considered "sensitive" and has code "HIV"). Accordingly, Clearance Policy falls under the Initiator Based Policy class, the Clearance Policy class equates to the ISO 10181-3 label-based scheme. Initiator-bound clearance ACI can be compared with security labels of Resources. Examples of clearance ACI are Normal, Restricted, and Very Restricted. [HL7 PASS SLS]