Background: Recently the European Commission is recasting the Euratom Basic Safety Standards (BSS) in order to further limit the exposure of the public and workers to radioactivity.The new BSS provides additional regulation for the incorporation of residues of NORM (fly ash,phosphogypsum,phosphorus/tin/copper slag,red mud,...) in building materials and for building materials from natural origin.The Activity Concentration Index (ACI) is proposed as a screening tool for building materials applied in dwellings.Materials & methods: A large scale radiological study of the container traffic in the port of Antwerp was conducted by means of portal monitors.Geometry corrected on-site measurements were performed on NORM and building materials with LaBr3(Ce) and NaI(T1) probes.These results were compared with lab analyses of samples by means of a HPGe detector.The indoor radon concentrations are measured by a Sun Nuclear 1029 Continuous Radon monitor or a Sarad Radon Scout PMT during three days in Winter 2011-12.Simultaneously,integrating passive radon detectors are exposed for three months.Results and discussion: The final results of the B-NORM project (15/12/2010-31/02/2013) that served to prepare industry for the new Euratom BSS are presented.(1) Results of a large scale radiological study of the container traffic in the port of Antwerp,with a focus on building materials,are discussed.(2) NuTeC has developed and validated an alternative,in-situ ACI determination method.This method was applied to analyze numerous building materials available on the Belgian market.(3) A study of the relation between radon and building materials applied,the airtightness and the progress in the construction works is demonstrated.Outlook: The current status of a COST project proposal aiming at validating NORM residues in building materials is discussed.Acknowledgement: Funding for the research projects is provided by the ministry of the Flemish community,EFRO and LRM.