My talk is a practical and candid look at corporate open source compliance. I cover both the BKMs (best known methods) and the WKMs (worst known methods) I have seen from companies over two decades of work in this field. The goal is to share with companies who may be new to free/open source development how to get good results and how to stay out of trouble. Audience is management, legal, project and engineering leads, software QA, and leaders of industry consortia such as GENIVI. This is not a deep dive on open source licensing, but some familiarity with basic software licensing is desirable.