This volume comprises studies and keynote addresses presented at the 16th Generative Approaches to Second Language Acquisition Conference hosted by The Norwegian University of Science and Technology, NTNU, in Trondheim in 2022. The selection of cutting-edge studies presented covers a wide array of topics within generative linguistics, including the acquisition of grammatical features, challenges of functional morphology, the impact of the native language on subsequently acquired languages, and interfaces between linguistic domains. Other chapters address how non-native language processing differs from native processing, while the volume also highlights internal and external factors affecting bi- and multilingual development and points to important avenues for further generative research on second language acquisition.