My colleagues and friends Tao Yang , and Stanislav Zhelyazkov have both recently posts interesting topics on how to implement your Azure Policy as Code which I strongly recommend you take a few moments to review

• Using ARM Templates to deploy azure policy definitions that require input parameters
• Defining input parameters for policy definitions in ARM Templates

Improving Readability

Both of these topics address the core of the challenges we face when approaching policy as an Infrastructure as Code problem. However, one of the things that is lost in the translation is the readability of the templates which they are deploying.