Due to the fact that almost every ice research group uses different testing methods, the results of nominally similar tests can vary greatly. This is of course, a hinderance to the Ice Engineering field. In order to improve the quality, comparability and usefulness of the test data resulting from mechanical property investigations, the IAHR Section on Ice Problems considers i t necessary to standardize ice testing methods. Herewith the Working Group of the IAHR Section on Ice Problems proposes i t s recommendations for the "Standardization of Testing Methods for Ice Properties". It should be noted that the suggested recommendations remain open to revision as the development of ice testing methods progresses.