From Blake Cassels:
“On February 16, 2016, the Ontario and federal governments announced an agreement regarding the Ontario Retirement Pension Plan (ORPP) (Announcement). The Ontario government is proposing to delay phase-in of the ORPP by starting the first phase of contributions in January 2018. ”

Citation and further reading: Blake Cassels & Graydon LLP http://www.blakesbusinessclass.com/alert-orpp-phase-in-of-contributions-delayed-until-january-2018/