TEHRAN, Iran — Iran’s parliament authorized tit-for-tat retaliation Tuesday against countries that inspect cargo on Iranian ships and aircraft as part of new U.N. sanctions over Tehran’s nuclear program.

A fourth Security Council sanctions resolution imposed last month calls on, but does not require, all countries to cooperate in such cargo inspections if there are “reasonable grounds” to believe the items could contribute to the Iranian nuclear program, and any inspection must receive the consent of the ship’s flag state.

The parliamentary bill passed Tuesday allows Iran’s government to respond in kind, with cargo inspections of its own.