tax supports arbitrary combinations of <cite>AND</cite>, <cite>OR</cite>
and <cite>NOutOf</cite>. For example, a policy can be easily expressed by using <cite>AND
(Org1, Org2)</cite> which means that a signature from at least one member in Org1 AND
one member in Org2 is required for the policy to be satisfied.</p>
<p>### ImplicitMeta policies</p>
<p><cite>ImplicitMeta</cite> policies are only valid in the context of channel configuration
which is based on a tiered hierarchy of policies in a configuration tr