The European Archaeological Council (EAC) has commissioned geophysics guidelines which are available online as the second in their series of Guidelines http://european-archaeological-council.org/publications/eac-guidelines
Armin Schmidt, Paul Linford, Neil Linford, Andrew David, Chris Gaffney, Apostolos Sarris and Jörg Fassbinder (2015). Guidelines for the use of Geophysics in Archaeology: Questions to Ask and Points to Consider.
Namur: Europae Archaeologia Consilium (EAC).
Country specific comments and additions to these guidelines will be available from this web page.
Please send feedback to Armin Schmidt at A.Schmidt 'at' Bradford.ac.uk