Is It In Force? is a bi-annual publication which provides the information you need to establish the exact commencement dates of every provision of every Public General Act in England, Wales and Scotland and of General Synod Measures of the Church of England passed in the last 25 years. The volume also contains Statutes Not Yet in Force which lists provisions of Acts for which no commencement dates have yet been appointed. Now published twice a year in May and November.