Conditions that affect the availability of, or method(s) of access to, an item. Typically used for real world items such as an <a class="localLink" href="/ArchiveComponent">ArchiveComponent</a> held by an <a class="localLink" href="/ArchiveOrganization">ArchiveOrganization</a>. This property is not suitable for use as a general Web access control mechanism. It is expressed only in natural language.<br/><br/>
For example "Available by appointment from the Reading Room" or "Accessible only from logged-in accounts ".