Dive summary:

• Contractors are looking to persuade congressmen to vote this week for a bill that would govern how fly ash could be used in concrete and other construction materials, a alternative they highly prefer to a possible Environmental Protection Agency ruling that ash in hazardous.
• That kind of EPA ruling could seriously interfere with fly ash, of which 12 million tons went into ready-mix concrete in 2011, so Associated General Contractors is leading a push for H.R. 2218 as the best way to go for the industry.
• The construction uses of fly ash from coal burning, in addition to concrete, include wallboard, asphalt and carpet.

From the article:

AGC supports H.R. 2218, the Coal Residuals Reuse and Management Act of 2013, which would establish reasonable disposal requirements that protect human health and the environment. ...