HRSA just released their draft Health Center Program Compliance Guide. This guide, which has been a long time in coming, is organized to closely follow the HRSA 19 program requirements. As a draft, this guide is open for comments through November 22, 2016. Once the Guide is finalized, it will replace a number of individual documents that have been issued over the last several years.
Here's the link to the guide on the HRSA website.