Which agency collaborates with IDOT for highway construction funding?

The Federal Highway Administration (FHWA) collaborates with the Illinois Department of Transportation (IDOT) for highway construction funding because it is the primary federal agency responsible for overseeing the nation's highway system and providing financial assistance for transportation projects. This partnership involves managing federal highway programs and allocating funds to state transportation departments, including IDOT, which are essential for constructing, maintaining, and improving highway infrastructure.

The collaboration with FHWA is critical as it sets the standards for highway construction and ensures projects comply with federal regulations and safety standards. This relationship enables the efficient delivery of necessary funding to support various transportation initiatives throughout Illinois, including highway construction and improvements, which are vital for enhancing transportation safety and accessibility for all citizens.

In contrast, the other agencies listed focus on different aspects of government oversight or public safety and do not play a direct role in highway construction funding. The Environmental Protection Agency primarily addresses environmental regulations; the Department of Energy is concerned with energy policies and initiatives; while the National Transportation Safety Board investigates transportation accidents and promotes safety rather than funding construction projects.