Introduction
American manufacturers have long operated at a disadvantage against foreign competitors who are not required to control their pollution. Under the Clean Air Act, U.S. firms spend tens of billions of dollars per year to keep our skies clear of harmful pollutants such as sulfur dioxide (SO₂) and nitrogen oxides (NOx). These expenditures have yielded enormous health benefits, from fewer emergency-room visits to lower rates of premature death—but they have also added real costs to doing business here at home. Meanwhile, overseas competitors, particularly coal-heavy nations such as China and India, often skip these same investments. As a result, they benefit from artificially lower production costs and flood global markets with underpriced goods. In industries such as steel, where around 90 percent of China’s production relies on coal-fired processes, that edge has played a real role in the decline of American production.
This is a classic case of regulatory arbitrage: America imposes protective pollution standards that come with high compliance costs, but international competitors do not. U.S. manufacturers lose market share despite being more environmentally responsible, American jobs disappear as production shifts to pollution havens, global pollution increases, and billions of dollars in investments made by U.S. firms to comply with U.S. laws are effectively penalized.
The Pollution Border Adjustment Mechanism (PBAM) would address this imbalance by applying fees to imported goods based on what it would cost those foreign producers to meet existing Clean Air Act standards. Put simply, if you want to sell goods in America, you pay the same pollution-control bill U.S. manufacturers already pay—or you install pollution controls yourself. Unlike carbon-based border proposals, PBAM focuses squarely on traditional air pollutants and their precursors (such as SO₂ and NOx) that are simpler to tie to domestic regulations and far less politically charged. This approach would support American manufacturing, create jobs, reduce global pollution, raise billions of dollars, and strengthen the position of U.S. energy exporters.
