Ferreira, Maria Adelaideda Silva, Carlos PereiraCampbell, Holly V.Conway, FlaxenAndrade, FranciscoJohnson, David2020-01-192020-01-1920151571-8085http://hdl.handle.net/10451/41002This article explores the new legal framework for marine spatial planning (msp) in Portugal. The main focus of the analysis is on the drivers of msp processes, the consideration given to existing vs. new uses, and on the evaluation of alternatives, based on the u.s. experience, with a focus on perceptions of u.s. msp practitioners. The Portuguese framework for msp may lead to favoring new uses over existing ones and defines ambiguous criteria for the selection of alternatives that are mostly financial in nature. The article draws attention to the potential environmental, social and economic risks of improperly addressing competing marine uses in the new Portuguese msp framework.engmaritime spatial planning (MSP)conflicting usesevaluation of alternativesU.S.-Portugal comparative studysustainable marine spatial planningjournal article10.1163/15718085-12341365