I'm doing an initial work on restandardization evaluation trying to explore to what extent the new Catalan spelling and grammar (2016) can be evaluated as terminology planning and language policy and planning are, mainly because this evaluation is needed and it has not been undertaken systematically. It is founded on the basic assumption that terminology planning evaluation (TPE) and language policy and planning evaluation (LPPE) can be applied to the Catalan restandardization evaluation. So the general question addressed is to what extent this restandardization can be evaluated according to the models for TPE (Fathi Terminology Planning Evaluation: The Case of Persian Language. [PhD. thesis UPF 2017]) and LPPE (Gazzola 2014 The Evaluation of Language Regimes: Theory and Application to Multilingual Patent Organisations). After presenting Haugen’s (1983) model of standardization with complementary concepts of Cooper (1989) and Cerruti, Crocco & Marzo (2017a), this model is analiyzed from Fathi’s (2017) and from Gazzola’s (2014) perspectives, with examples of what has been done in the official Catalan standardization. The principal original contributions of my work are this analysis of Haugen’s model from Fathi’s and Gazzola’s evaluation models and the general positive verification of the hypothesis, which makes new research lines to arise for the future.