Category: Clean Air Act

On April 29, 2022, the U.S. Environmental Protection Agency officially suspended the ban on sales of gasoline blends with a higher concentration of ethanol. This suspension came two weeks after President Biden’s vow to lift the ban in order to counteract the increased gas prices attributed to Russia’s incursion into Ukraine. The suspension went into effect on May 1.

E15, or fuel with 15% ethanol, is traditionally banned during the warmer months—June through October—in an effort to combat the production of smog. In the current …

Although ethanol is one of the earliest biotechnologies, it wasn’t until the energy crisis of the 1970s that ethanol was widely used as an additive to gasoline. Back then, concerns about the price of fuel and the impact of leaded gas on the environment led to a search for less expensive and more environmentally friendly alternatives. Ethanol seemed to fit both criteria. Today, approximately 90% of the gasoline sold in the United States contains ethanol—and this ethanol is largely produced from corn. Corn is used …

A decade ago, as part of a concerted effort to reign in industrial pollution, the Obama-era Environmental Protection Agency (EPA) promulgated the mercury and air toxics standards (MATS) pursuant to its authority under the Clean Air Act (CAA). The purpose, as implied by the title, was to limit the amount of mercury and other toxins released into the air by coal-fired power plants. It was heralded by proponents and environmentalists as a large step forward in reducing the risk of heart attacks and cancer, and …

Ethylene oxide is a gas commonly used to make other chemicals utilized in a variety of consumer and industrial goods, including fabric, detergents, medicines, and adhesives. It’s even used to sterilize medical devices and spices and to kill microorganisms in grains. But ethylene oxide is acknowledged as a known human carcinogen (cancer-causing compound or substance) in high-level concentrations and extended periods of exposure. Ethylene oxide has been linked to non-Hodgkin lymphoma, leukemia, multiple myeloma, and breast cancer, among many other cancers and physical ailments.

The …

Recently, the U.S. Environmental Protection Agency (EPA) finalized its Clean Air Act (CAA) cost-benefit rule, which it proposed in June 2018 and held a public hearing on in July 2020. A procedural rule, it is meant to “improve the rulemaking process under the Clean Air Act by establishing requirements to ensure consistent, high-quality analyses of benefits and costs are provided to the public for significant rules,” according to the EPA’s press release. The final rule codifies “best practices” for benefit-cost analyses (BCA) in CAA rulemaking. …

Earlier this month, the Environmental Protection Agency (EPA) issued a prepublication version of a final rule under the Clean Air Act (CAA) that permits major sources of hazardous air pollutants (HAP) to reclassify as sources if the source reduces its potential to emit HAPs below the major source threshold (10 tons per year of any single HAP or 25 tons per year of any combination of HAPs). In addition, the rule is design to finalize amendments to clarify the compliance dates, notifications, and recordkeeping requirements …