Boeing Co. will not appeal a U.S. International Trade Commission ruling that permits Canadian rival Bombardier Inc. to sell jets to U.S. airlines without hefty duties, a Boeing spokesman told Reuters on condition of anonymity.

The spokesman declined to elaborate on the decision not to appeal, while a Bombardier spokesman was not immediately available to comment, Reuters reported March 23.

Boeing had alleged that Bombardier jets received subsidies from the Canadian government that allowed them to be sold in the U.S. at less than fair value. In January, the U.S. International Trade Commission rejected Boeing's claims that the subsidies caused it harm, blocking a U.S. Commerce Department move to impose duties on imports of Bombardier's C-Series aircraft.

A Canadian government official who spoke to Reuters on condition of anonymity said that Boeing's decision not to appeal was "good news."