The United States announced that it will stop sending Russia some notifications under the new SNF Arms Control Treaty, including updates on the location of missiles and launchers, from Thursday in response to Moscow’s “persistent violations” of the treaty, Reuters reported.

In a newsletter on its website, the State Department said it would also stop providing Russia with telemetry — remotely collected data about missile flight — about US intercontinental ballistic missile and submarine-launched missiles.

Vladimir Putin has not officially withdrawn from the treaty limiting the strategic nuclear arsenals deployed by the two countries. On February 21, he announced that Russia would suspend its participation in the treaty, jeopardizing the final phase of mutual arms control between the US and Russia.

The new NPT Treaty (signed in 2010, expiring in 2026) limits the number of strategic nuclear warheads countries can deploy. According to its terms, Moscow and Washington cannot deploy more than 1,550 strategic nuclear warheads and 700 missiles to launch them.

“Beginning June 1, 2023, the United States will refuse to provide Russia with the notifications required under the treaty, including updates on the status or location of items covered by the treaty, such as missiles and launchers,” the State Department said in a news release.

According to her, Russia stopped providing data at the end of February.

A spokesman for the Biden administration said the United States “will continue to respect the core limitations of (the treaty) … and we expect Russia to continue to do the same.”

The official, speaking to reporters on condition of anonymity, said the U.S. measures are reversible and that the United States is seeking to bring Moscow back to arms control talks, an unlikely prospect given Russia’s invasion of Ukraine in February 2022 and the supply of U.S. weapons to Kiev.

“We took a phased approach,” he said, explaining that the United States wanted to use its response to Russia’s suspension to “give them an opportunity to come back to the negotiating table to talk about returning to the obligations under the new STO treaty and … sure to get that information again.”

Last week, there was a “bilateral engagement” between the US and Russia in which Moscow “refused to change its current course on the New SNO, and as a result we are taking these countermeasures starting today,” he said.

The State Department said it would continue to notify Russia of intercontinental ballistic missile (ICBM) and submarine-launched ballistic missile (SLBM) launches under the 1988 Ballistic Missile Launch Notification Agreement, as well as strategic exercises under a separate 1989 agreement.