The announcement concerning the removal was made...or the decision is effective as of the date of suspension or the date of the special measures. So from that date, it means that people from Haiti and Zimbabwe cannot be removed to their country of origin unless they don't meet the criteria, as explained before. The announcement and the decision for not removing people coincide with the date of the announcement of the special measures.
On February 25th, 2016. See this statement in context.