This document discusses the framework and definitions around REMIT, the EU regulation addressing market abuse in wholesale energy markets. It defines key terms like inside information, transparency information, and market participants. Inside information must be precise, not publicly available, and capable of impacting prices. It includes data on capacity and facilities required to be disclosed. Transparency information is periodic structural data published under other regulations. The document outlines disclosure obligations for inside information, including publishing it on centralized platforms in a timely manner. It provides details on content of disclosure messages and allowed delays or exemptions.