Effective March, 2016
Shortening the settlement cycle from trade date plus three business days (T+3) to trade date plus two business days (T+2) for U.S. secondary market transactions in equities, corporate and municipal bonds, unit investment trusts, and financial instruments composed of these products is an industry- led initiative. To support this industry-led initiative, FINRA seeks comment on proposed amendments to FINRA rules relating to the settlement cycle. FINRA proposes to adopt necessary rule changes in a manner and timeline that is consistent with the Securities and Exchange Commission (SEC) and other self-regulatory organizations (SROs) in an effort to provide the regulatory certainty necessary for an efficient transition.
See the attached pdf, for the full text: