Biodiesel Heating Oil Act Of 2013 (2013) To promote the production and use of biofuels in the state, the Rhode Island General Assembly passed the Biodiesel Heating Oil Act of 2013. The Act sets a compliance schedule ramping up to a 5 percent biofuel blend minimum standard for all heating oil sold in the state by July 1, 2017. Click here to view the Biodiesel Heating Oil Act of 2013 (2013)