At this time last year, the HVAC industry was in state of upheaval. Half the country’s state governors were in the process of implementing the EPA’s invalidated Significant New Alternatives Program (SNAP) Rules 20 and 21; the American Innovation and Manufacturing (AIM) Act seemed stalled in Congress; and California’s Air Resources Board (CARB) was moving ahead with proposed regulations that outpaced the state’s building codes. These factors, along with others, were leading to a patchwork of regulations that threatened to derail the U.S. HVAC industry’s global leadership. A year later, however, many of those issues are seemingly resolved, and the industry is on the verge of moving toward a unified and safe transition to a new generation of low-GWP refrigerants.