Extended Channel Interpretations: Part 2: Registration Procedure describes the procedure for adding a new ECI assignment to the Register found in Part 3: Register. The procedure applies to Interpretative ECIs (which include Character Set ECIs) and Transformation ECIs (excluding Closed System ECIs). The Signal ECIs are completely defined in Part 1 and do not require additional registration. Publication date: July 2004 This product is a single user license only. Copying and/or networking is prohibited. By purchasing this product, you agree to abide by the AIM End User License Agreement.