<h1>US tariff notices escalate trade policy by imposing broad punitive duties and conditional surcharges tied to diplomatic alignment.</h1> The administration issued formal tariff notices imposing broad punitive ad valorem duties on imports from specified states, premised on persistent trade imbalances and conditioned on negotiations during a suspension window; it also announced additional targeted tariff rates for further partners and a conditional surcharge tied to alignment with anti American BRICS policies.