The state and municipalities of Massachusetts are making major changes to their policies to decarbonize rapidly in the face of impending climate change. We don’t have the luxury of time to strategize, but moving too quickly invites the risk of overlooking the other impact categories, such as embodied emissions and the social cost of carbon. Integrative energy modeling processes have evolved to have a greater impact on the design and decarbonization strategies, resulting in a holistic collaborative design approach while focusing on these new KPIs. With local regulations such as BERDO and BEUDO, building ownership is challenged to evaluate strategies that improve operational carbon, such as envelope upgrades and electrification and decarbonization of HVAC systems. These regulations, however, overlook the embodied carbon associated with the life cycle of materials and their installations. It also poses the question of strategy: is it more cost-effective in the long run to renovate and re-use or to tear down and rebuild? Addressing emissions related to operational carbon is an easy and tangible metric to pursue, but recommended solutions shouldn’t be too quick to overlook the ripple effect design and construction applications have. This presentation introduces new KPIs for Net Zero goals. For states and municipalities to adopt these strategies, metrics that evaluate embodied emissions and the social cost of carbon need to be made accessible and scalable. The presenters have been working on projects that needed to strategize around these concerns through iterative energy modeling. While energy modeling software focuses on operational carbon, it has also invited the opportunity to evaluate and compare other key metrics.