Last year the United States government fined Harley-Davidson $15 million for selling devices that shut down its motorcycles’ emissions controls — and said part of that money would go toward a project to reduce pollution from wood-fired stoves.

On Thursday, the Trump administration said Harley-Davidson was no longer required to fund the antipollution program, knocking $3 million off the company’s bill.

The move followed a decision last month by Attorney General Jeff Sessions to halt a longstanding practice under which polluters could be compelled to pay for environmental or community projects, in addition to fines and direct compensation to victims.

To settle claims from the Gulf oil spill, for example, BP was required to spend billions on coastal restoration projects that were not directly related to spill damage. Critics have long said the practice effectively creates “slush funds” for favored organizations or causes.