Section 232 tariffs on the new steel and aluminum “derivatives” outside of Chapters 73 and 76 will take effect at 12:01 a.m. tonight, CBP said in a pair of CSMS messages. The March 12 effective date is in line with the other Section 232 duty increases announced in February, including an end to all country-specific quotas and exclusions and an increase in aluminum tariffs to 25%.

President Donald Trump acknowledged that the Ontario premier rolled back a surcharge on electricity exports to the U.S. and told reporters at the White House that he "probably" wouldn't increase to 50% the tariffs on Canadian steel and aluminum set to take effect on March 12, as he had threatened about five hours earlier.

An exemption for USMCA-qualifying goods from 25% tariffs on goods from Mexico will also take effect March 7, alongside the USMCA exemption for Canada, according to an executive order signed today by President Donald Trump. Like the Canada order, it also lowers the tariff for potash that doesn’t qualify for the USMCA exemption to 10%.

President Trump posted on social media: "After speaking with President Claudia Sheinbaum of Mexico, I have agreed that Mexico will not be required to pay Tariffs on anything that falls under the USMCA Agreement. This Agreement is until April 2nd. I did this as an accommodation, and out of respect for, President Sheinbaum. Our relationship has been a very good one, and we are working hard, together, on the Border, both in terms of stopping Illegal Aliens from entering the United States and, likewise, stopping Fentanyl. Thank you to President Sheinbaum for your hard work and cooperation!"

The President has amended the executive orders imposing 25% tariffs on all Mexican goods, 10% tariffs on Canadian energy and 25% tariffs on other Canadian imports so that any good that qualifies for USMCA preference will be able to avoid the tariff, the White House said.

An exemption for USMCA-qualifying goods from 10% and 25% tariffs on goods from Canada will take effect at 12:01 a.m. on March 7. An executive order signed by President Donald Trump exempts all goods “that are entered free of duty as a good of Canada under the terms of general note 11” of the tariff schedule from the tariffs, “including any treatment set forth in subchapter XXIII of chapter 98 and subchapter XXII of chapter 99.”

White House spokeswoman Karoline Leavitt told reporters that the president asked her to tell reporters that after he spoke with Detroit's Big Three automakers: "We are going to give a one-month exemption on any autos coming through USMCA. Reciprocal tariffs will still go into effect on April 2, but at the request of the companies associated with USMCA, the president is giving them an exemption for one month, so they are not at an economic disadvantage."

CBP issued notices late March 3 on implementation of 25% tariffs on most goods from Canada and all goods from Mexico.

Tariffs on some of the new aluminum and steel derivatives listed in an annex to President Donald Trump’s proclamation expanding the Section 232 tariffs will take effect March 12, according to a pair of notices released by the Commerce Department.

President Donald Trump published an executive order shortly before 5 p.m. increasing emergency fentanyl tariffs on China from 10% to 20% because China hasn't taken adequate steps to cooperate on reducing drug smuggling.