Who is affected and how:

• Merchandise importers: Directly affected because they could face new duties only after a congressional approval process; this increases uncertainty around the timing and likelihood of new tariffs.
• Consumers and businesses that rely on imported goods: Likely to feel the downstream effects through prices and supply chains; slower or less frequent tariff imposition could reduce short-term price shocks but also limit a policy tool used to protect domestic industries.
• Domestic producers and industries that seek protective tariffs: May find it harder to obtain rapid tariff relief because they must secure Congressional approval rather than rely on executive action.
• Executive branch (President and agencies that administer trade remedies): Loses or sees limited unilateral authority to impose duties under many statutory tools, requiring increased consultation with and approval from Congress.
• Foreign exporters and trading partners: Could face fewer sudden tariff actions by the United States but also greater politicization of tariff decisions as they become subject to congressional debate.

Broader consequences:

• Policy process: Moves many trade-policy decisions from executive unilateral action into the legislative arena, increasing transparency and political accountability but also likely increasing delay and uncertainty.
• Speed and flexibility: Reduces the executive branch's ability to respond quickly to emerging trade threats or crises with immediate duties; only full embargoes remain exempt.
• Legal and constitutional issues: May prompt litigation or constitutional questions about separation of powers and existing statutory delegations; it alters reliance on preexisting statutes that grant executive tariff authority.
• Economic effects: Depending on how Congress uses the new authority, businesses and markets may face either fewer abrupt tariff changes (stability) or more politically driven, public debates that could affect trade relationships and investor confidence.