The objectives of this task were to assemble a summary of current chemical use trends and approved green products that are or could be used by DOTs for maintenance and operations.   The research examined if the approved green products lists can be further supplemented and build a source database of possible green products for DOTs to use. Identify products that can help reduce 1) compliance permitting, reporting and inventory requirements; 2) worker health and safety requirements, liabilities, monitoring, and concerns; 3) environmental impacts and protection requirements to carefully contain, manage, and properly dispose of hazardous materials; and 4) costs for regulatory fees and requirements, disposal and recycling fees, environmental protection measures, and worker protection.

The project final report is posted here and an accompanying manual is posted here.