The last few years have been rocky for the Alternative Fuel Tax Credits introduced during the Obama administration. These tax credits were intended to spur the adoption of alternative vehicle fuel sources, including alternative school bus fuels, as well as also encouraging the construction of alt-fuel refill stations.
The credits were originally scheduled to end in 2017 but received short-term extensions to keep them going. This has happened several times since and, fortunately, another extension recently passed and was signed into law. So, the credits will now remain active until Aug 11, 2020, giving school districts and other operations more time to submit claims from 2018-19.