IETA is the leader in providing standardised documentation for the Emissions Trading Scheme. IETA provides a number of documents covering primary and secondary OTC markets. Through the Secretariat and its specialist members, IETA maintains, updates and develops new contracts recognised for their clarity, conciseness and focus on the details of the carbon market. Below is our standardized documentation suite. Suitable only for Phase 3 trading (date September 14, 2012) California Emissions Trading Master Agreement (CETMA) v. 1.1 (Word version) If you have any legal questions regarding the business documents mentioned below, please contact a licensed legal professional. For general questions, please contact the IETA Secretariat. Please note that the CETMA files provided on this page contain the following:. . . .