sentence: Bacillus thuringiensis subsp. kurstaki strain PB 54 is not proposed to be included into Annex IV of Regulation ( EC ) No 396/2005 since the consumer dietary risk assessment cannot currently be finalised.In the area of environmental fate and behaviour , the available information was considered sufficient to complete the necessary environmental exposure assessments with the exception that adequate information to address the uniform principles criterion of the strain PB 54 not being expected to persist and multiply in surface water in concentrations considerably higher than the natural background levels , provided that repeated applications be made over the years , was not available .