 system chaincode. They also specify how many organizations need to agree
on a proposal to update a resource, such as a channel or smart contracts. Once
they are written, policies evaluate the collection of signatures attached to
transactions and proposals and validate if the signatures fulfill the governance
agreed to by the network.</p>
<p>## How are policies implemented throughout Fabric</p>
<p>Policies are implemented at different levels of a Fabric network. Each policy
domain governs different aspects 