The regulation implements a mandate of the Energy Policy and Conservation Act, the landmark law passed in the wake of gasoline shortages throughout the nation.
That law prescribed energy conservation standards and labeling for manufacturers of most household appliances and industrial equipment, as well as for some distributors and retailers.
It also required that products covered by the law that fail to meet its standards "shall be refused admission into the customs territory of the United States under rules issued by the Secretary of the Treasury," as the new rule seeks to do.
U.S. Customs and Border Protection and the Treasury Department jointly proposed the rule in March of 2012.
The agencies received eight comments on that proposal.
The regulation is scheduled to be published in the Federal Register on Friday.