Despite its importance and omnipresence in Mainland Scandinavian languages, tonal accent is an under-researched domain in bi- and multilingual grammars. More specifically, heritage speakers of Norwegian in North America (NAmNo) represent an ideal population to examine whether they have retained tonal accent. Although the role of suprasegmental phonology (including tonal accent) has received attention in the L2 acquisition literature (Goad & White 2019), its role in the development of heritage languages is nascent (Yang 2015; Chang & Yao 2016; Polinsky 2018; Natvig et al. under review). In European Norwegian (EuroNo), two pitch contours, called accent 1 and accent 2, distinguish two types of stressed syllables (Kristoffersen 2000) and are essential in distinguishing word forms, categorical distinctions, the formation of compounds, and inflection in the language. This presentation highlights the motivation behind the funded project, North American Norwegian Tonal Accents in Contact (NANTiC; Research Council of Norway grant #: 354301), whose primary goal centers on research and gaining a better understanding of the status of tonal accent in the grammar of remaining speakers of NAmNo in the Upper Midwest of the United States. In this talk, Michael Putnam will report on their methodological challenges and recent findings, looking forward to next stages and the possibility of extending this research to L2/3 learners and potential clinical domains.