The University of Massachusetts Dartmouth School for Marine Science and Technology (SMAST) conducted a standardized ventless lobster trap survey and tagging study in Vineyard Wind’s Lease Area OCS-A 0501, (Figure 1). In northern portion of the Lease Area, termed the 501 North (501N) Study Area, populations of adult lobster were sampled and compared to those in the easterly adjacent Control Area. The primary goal of this project was to identify baseline conditions in the 501N Study Area and adjacent Control Area, to then compare potential impacts on several marine species of proposed wind development activities in the 501N Study Area and the Control Area between years. To establish a baseline, a Before-After-Control-Impact (BACI) design was employed to detect eventual patterns of sustained difference. Our primary objectives for this project were to: 1) Estimate the size and distribution of lobster populations in the 501N Study Area and adjacent Control Area; 2) Classify population dynamics of lobster such as length, sex, reproductivity success, age, diet, and disease; 3) Obtain movement patterns of adult lobsters through a tagging study. Catch and environmental data has been obtained in 2019 and 2020 during pre-construction and comparison between years and areas will be presented in this paper. For the 501N study area and Control Area there was no significant difference in lobster catch-per-unit-effort (CPUE) between 2019 and 2020 (K-S test, D=0.17, p-value=0.06; K-S test, D=0.16, p-value=0.13).