The mastery agreement is the central document around which the rest of the ISDA documentation structure is cultivated. The pre-printed framework contract is never amended, with the exception of the addition of the names of the parties, but is adapted to the master agreement by the use of the calendar, a document containing options, additions and changes to the framework contract. An ISDA master contract is the standard document that is regularly used to regulate over-the-counter derivatives transactions. The agreement, published by the International Swaps and Derivatives Association (ISDA), outlines the conditions to be applied to a derivatives transaction between two parties, usually to a derivatives trader and counterparty. The master contract of the ISDA itself is the norm, but it is accompanied by a bespoke timetable and sometimes an annex to support the credit, both signed by both parties in a given transaction. The main credit support documents in English law are the 1995 credit support annex, the 1995 credit support instrument and the 2016 credit support annex for the margin of change. English credit support laws provide for property guarantees, while English law provides for the granting of an interest rate on the value of the property through transferred security. The 2016 Credit Support Schedule for Variation Margin was specifically created to enable the parties to meet their commitments to exchange margin of change worldwide, including EMIR in Europe and Dodd-Frank in the United States of America. The English Credit Support Annexes laws are confirmations, and the transactions they have formed are transactions, within the framework of the master`s contract and therefore part of the single agreement with the master contract. On the other hand, the English legal act Credit Support Deed is a separate agreement between the parties. The framework agreement and timetable define the reasons why one party may impose the closure of covered transactions due to the appearance of a termination event by the other party. Standard termination events include defaults or bankruptcy.