Welsh NVZ Guidance Published April 23, 2014 12:00 am Following changes to the Nitrate Vulnerable Zone regulation in Wales, which have been in force since 1st January 2014, the Welsh Government has published guidance for farmers and a workbook. This, when completed, will satisfy the new requirements. The Guidance is available at http://wales.gov.uk/topics/environmentcountryside/epq/waterflooding/nitrates-directive/?lang=en