The policy and format ofGeologiska Föreningens i Stockholm Förhandlingarare at present undergoing modifications, which will come into full effect in Volume 101. The principal purpose of these modifications is to improve the journal's efficiency in disseminating scientific results. The background to the most important and conspicuous changes is given, i.e. (1) the revision of the cover pages, (2) the change of logotype, (3) the restriction of papers on regional or local geology to the Nordic area, (4) the adoption of English (Standard or American) as the language of the journal, (5) changes in policy and the formulation of stricter rules for literature reviews, (6) the introduction of blank-page fillers, (7) the reintroduction of free separates for authors and the change to more economical ways of producing additional separates, (8) the introduction of keywords and manuscript date in the abstract block, (9) technical modifications, such as the abolition of abbreviated serial titles and capitalized book titles, (10) the change of paper, and (11) the introduction of rules for writing geographical and geological expressions based on Swedish geographical names.