Semesters A: 01 Dec - 31 May Proposal deadline: mid-September
Semesters B: 01 Jun - 30 Nov Proposal deadline: mid-March
Note that due to the transition to Apertif, there is no new call for proposals planned in 2014.
Urgent proposals that require swift action, and Service proposals for up to 26 hours of non-guaranteed filler time, can be submitted at any time. Occasionally, a special interim calls for proposals may also be issued. See the news and the Policy for WSRT Observing for details.
The WSRT is part of the European VLBI Network (EVN). Proposals for use of the WSRT in the European or Global VLBI Network observations are coordinated separately (further information on Network VLBI can be found on the EVN-JIVE web site).