FIA has filed a letter with international standard-setting bodies urging further progress on efforts to increase the resilience of global derivatives markets in times of stress. The letter was submitted in response to a consultation on initial margin requirements in centrally cleared derivatives markets that was issued by Basel Committee on Banking Supervision (BCBS), the Bank for International Settlements' Committee on Payments and Market Infrastructures (CPMI) and the International Organization of Securities Commissions (IOSCO).