Tariffs or duties are taxes assessed on imports of foreign goods, paid by the importer to the U.S. government, and collected by U.S. Customs and Border Protection (CBP). Current U.S. tariff rates may be found in the Harmonized Tariff Schedule (HTS) maintained by the U.S. International Trade Commission (ITC). The U.S. Constitution grants Congress the sole authority to regulate foreign commerce and therefore impose tariffs, but, through various trade laws, Congress has delegated authority to the President to modify tariffs and other trade restrictions under certain circumstances. To date, President Trump has proclaimed increased tariffs under three different authorities. The President has also proclaimed other import restrictions, including quotas and tariff-rate quotas under these authorities, but the majority of the actions are in the form of ad-valorem tariff increases. The United States played a prominent role in establishing the global trading system after World War II and has generally led and supported global efforts to reduce and eliminate tariffs since that time. Through both negotiated reciprocal trade agreements and unilateral action, countries around the world, including the United States, have reduced their tariff rates over the past several decades, some by considerable margins. According to the World Trade Organization (WTO), U.S. most-favored-nation (MFN) applied tariffs, the tariff rates the United States applies to members of the WTO—nearly all U.S. trading partners—averaged 3.4% in 2017. Globally tariff rates vary, but are also generally low. For example, the top five U.S. trading partners all have average tariff rates below 10%: the European Union (EU) (5.1%), China (9.8%), Canada (4.0%), Mexico (6.9%), and Japan (4.0%). Despite these low averages, most countries apply higher rates on a limited number of imports, often agricultural goods. As discussed below (see " What are Section 201, Section 232, and Section 301? ") the authorities under which President Trump has increased tariffs on certain imports allow for import restrictions to address specific concerns. Namely, these authorities allow the President to take action to temporarily protect domestic industries from a surge in fairly traded imports (Section 201), to protect against threats to national security (Section 232), and to respond to unfair trade practices by U.S. trading partners (Section 301). In addition to addressing these specific concerns, the President also states he is using the tariffs to pressure affected countries into broader trade negotiations to reduce tariff and nontariff barriers, such as the announced trade agreement negotiations with the EU and Japan, and to lower the U.S. trade deficit. President Trump's recently imposed tariff increases are of note because they are significantly higher than average U.S. tariffs (most of the increases are in the range of 10-25%), and have resulted in retaliation of a similar magnitude by some of the countries whose exports to the United States have been subject to the tariff increases; they affect approximately 12% of annual U.S. imports and 8% of U.S. exports, magnitudes that could grow if additional proposed or pending actions are carried out, or decrease if additional negotiated solutions are achieved; they represent a significant shift from recent U.S. trade policy as no President has imposed tariffs under these authorities in nearly two decades; and they have potentially significant implications for U.S. economic activity, the U.S. role in the global trading system, and future U.S. trade negotiations. Section 201, Section 232, and Section 301 refer to U.S. trade laws that allow presidential action, based on agency investigations and other criteria. Each allows the President to restrict imports to address specific concerns. The focus of these laws generally is not to provide additional sources of revenue, but rather to alter trading patterns and address specific trade practices. The issues the laws seek to address are noted in italics below. The Trump Administration has imposed import restrictions under the three authorities noted above, affecting approximately $282 billion in U.S. annual imports, based on 2017 import values ( Figure 1 ). In addition, the President has initiated Section 232 investigations on U.S. imports of motor vehicles and uranium, which could result in increased tariffs on up to $361 billion and $2 billion of U.S. imports, respectively. The President has also suggested he may increase tariffs under Section 301 authorities on an additional $267 billion of U.S. imports from China, depending on the results of ongoing bilateral talks. The import restrictions imposed under Section 201 and Section 232 apply to U.S. imports from most countries. The Section 301 tariffs apply exclusively to U.S. imports from China. China is a major focus of a Section 301 investigation and related tariff measures largely due to concerns over its intellectual property rights (IPR) and forced technology transfer practices, and the size of its bilateral trade deficit with the United States. China's government policies on technology and IPR have been longstanding U.S. concerns and are cited by U.S. firms as among the most challenging issues they face in doing business in China. Moreover, China is considered to be the largest global source of IP theft. On March 22, 2018, President Trump signed a presidential memorandum on U.S. actions related to the Section 301 investigation. Described by the White House as a response to China's "economic aggression," the memorandum identified four broad Chinese IP-related policies to justify U.S. action under Section 301, stating China uses joint venture requirements, foreign investment restrictions, and administrative review and licensing processes to force or pressure technology transfers from American companies; China uses discriminatory licensing processes to transfer technologies from U.S. companies to Chinese companies; China directs and facilitates investments and acquisitions, which generate large-scale technology transfer; and China conducts and supports cyber intrusions into U.S. computer networks to gain access to valuable business information. The USTR estimated that such policies cost the U.S. economy at least $50 billion annually. During his announcement of the Section 301 action, President Trump also stated that China should reduce the bilateral trade imbalance (which at $376 billion in 2017 for goods trade was the largest U.S. bilateral trade imbalance) and afford U.S. "reciprocal" tariff rates. Yes. The Administration negotiated quota arrangements rather than imposing Section 232 tariffs on steel imports from Brazil and South Korea, and Section 232 tariffs on both steel and aluminum imports from Argentina. Although the steel and aluminum tariffs were not addressed in the proposed modifications to the North American Free Trade Agreement (NAFTA), renamed the U.S.-Mexico-Canada Agreement (USMCA), USTR Robert Lighthizer stated the three countries are discussing alternative measures. Side agreements to the USMCA include specific language exempting light trucks and 2.6 million passenger vehicle imports annually each from Canada and Mexico from future U.S. import restrictions under Section 232, as well as $32.4 billion and $108 billion of auto parts imports, respectively. The Administration also informally agreed not to move forward with additional Section 232 import duties on U.S. motor vehicle and parts imports from the European Union (EU) and Japan while broader bilateral trade negotiations are ongoing. Discussions on the steel and aluminum tariffs are also to be part of both negotiations. Additionally, the Administration has participated in talks with China regarding the trade practices that are the subject of the Section 301 tariffs. Negotiations in May 2018 initially appeared to resolve the trade conflict, but were ultimately unsuccessful. After further tariff actions by both sides, on December 1, 2018, Presidents Trump and Xi met at a private dinner during the G-20 Summit in Argentina. According to a White House statement, the two leaders agreed to begin negotiations immediately on "structural changes" with regard to IP and technology issues (related to the Section 301 case). The leaders also agreed to address agriculture and services issues. The parties set a goal of achieving an agreement in 90 days. In addition, the White House reported that President Xi agreed to make "very substantial" purchases of U.S. agricultural, energy, and industrial products. In exchange, President Trump agreed to suspend the planned Stage 3 Section 301 tariff rate increases that were scheduled to take effect on January 1, 2019, but stated that the increases would be implemented if no agreement was reached in 90 days (by March 1, 2019). High level talks continue, and on January 30-31, 2019, Chinese Vice Premier Liu met with President Trump and other U.S. officials, during which China pledged to purchase 5 million metric tons of U.S. soybeans. On January 31, President Trump indicated that a final resolution of the trade dispute would not be achieved until he met with President Xi. Reports suggest the trade talks may be extended beyond the March deadline. President Trump has made clear that the Administration is using these various import restrictions as a tool to get countries to negotiate on other issues. At the announcement of the proposed USMCA, the President stated "without tariffs, we wouldn't be talking about a deal, just for those babies out there that keep talking about tariffs. That includes Congress—'Oh, please don't charge tariffs.' Without tariffs, you wouldn't be standing here." The United States has also engaged or will engage in consultations at the WTO with some trading partners affected by the tariffs. Such consultations are a required first step in dispute settlement proceedings, which U.S. trading parties and the United States in turn, have initiated in response to the U.S. actions and trading partner retaliations. (See " What dispute-settlement actions have U.S. trading partners taken? " and " What dispute-settlement actions has the United States taken? ") Yes. Some U.S. trading partners subject to the additional U.S. import restrictions have taken or announced proposed retaliations against each of the three U.S. actions. Since April 2018, a number of retaliatory tariffs have been imposed on U.S. goods accounting for $126 billion of U.S. annual exports, using 2017 export values ( Figure 2 ). Yes. The tariffs impact various stakeholders in the U.S. economy, prompting both support and concern from different Members of Congress. To date, Congress has conducted oversight hearings on the Section 232 and 301 investigations and examined the potential economic and broader policy effects of the tariffs. Many Members have expressed concern over what they view as an expansive use of the delegated tariff authority under Section 232, and some Members have introduced legislation in the 115 th and 116 th Congresses that would amend the current authority in a number of ways, including requiring a greater congressional role before tariffs may be imposed. All actions continue to be actively debated, as some other Members see a need for expanded presidential authority to ensure more reciprocal tariff treatment by U.S. trading partners and have introduced legislation in the 116 th Congress to that effect. Senator Grassley, chairman of the Senate Finance Committee announced that he intends to "review the President's use of power under Section 232 of the Trade Act of 1962" during the 116 th Congress. There is no set definition of what may constitute a trade war. Beginning in 2017, the United States and some of its major trading partners imposed escalating import restrictions, particularly tariffs, on certain traded products. Some contend that with these actions—or threat thereof—the United States has embarked upon a full-scale "trade war." Although the scale and scope of these recent unilateral U.S. tariff increases are unprecedented in modern times, tensions in international trade relations are not uncommon. Over the last 100 years, the United States has been involved in a number of significant or "controversial" trade disputes. Past disputes, however, were more narrowly focused across products and trading partners, and generally temporary. Most were settled, and when unresolved, they were contained or defused through bilateral and multilateral negotiations. From the early 20 th century until this year, one dispute resulted in a worldwide tit-for-tat escalation of tariffs: the trade dispute ignited by the U.S. Tariff Act of 1930, commonly known as the "Smoot-Hawley" Tariff Act. The United States has imposed unilateral, restrictive trade measures in the past, but rarely before attempting to resolve its trade-related concerns through negotiations. The United States has, for the most part, engaged with trading partners in bilateral and multilateral fora to manage frictions over such issues and to achieve expanded market access for U.S. firms and farms and their workers. In particular, the United States has generally sought dispute resolution through the multilateral forum provided by the General Agreement on Tariffs and Trade (GATT) and its successor, the WTO. As part of the dispute settlement process, WTO members may seek authorization to retaliate if trading partners maintain measures determined to be inconsistent with WTO rules. Presidential action under these trade laws has varied since Congress enacted them in the 1960s and 1970s, but since 2002 past Presidents generally declined to impose trade restrictions under these laws. The use of Sections 201 and 301, which address some issues also covered by trade rules established at the WTO, has decreased since the creation of that institution in 1995 and its dispute-settlement system, considered more rigorous and effective than the dispute-settlement system under its predecessor, the GATT. The use of Section 232, which focuses on national security concerns and was created during the Cold War, has also declined and has been infrequently used over several decades. Yes. The President's actions have resulted in legal challenges in the U.S. domestic court system and in the dispute settlement system at the WTO. Specifically, the Section 232 actions on steel and aluminum have been challenged in cases before the U.S. Court of International Trade. Severstal Export Gmbh, a U.S. subsidiary of a Russian steel producer, has challenged whether the Administration's actions were appropriately based on national security considerations, as required by statute. The American Institute for International Steel (AIIS), a trade association opposed to tariffs, has challenged the constitutionality of Congress' delegation of authority to the President under Section 232. Most recently, U.S. importers of Turkish steel have initiated a case arguing that the President's increase of the Section 232 steel tariffs from 25% to 50% on U.S. imports from Turkey did not have a sufficient national security rationale, did not follow statutory procedural mandates, and violates a due process law. At the WTO, U.S. trading partners have initiated dispute settlement proceedings with regard to the President's actions under Section 201, Section 232, and Section 301. For more information, see the section on " What dispute-settlement actions have U.S. trading partners taken? " Many analysts are concerned that the U.S. measures threaten the rules-based global trading system that the United States helped to establish following World War II. The Trump Administration argues that the unilateral measures are justified under existing multilateral trade rules and as a response to violations of existing commitments under the WTO by other trading partners, particularly China. In contrast, U.S. trading partners contend that the Administration's unilateral actions undermine these existing commitments. They argue that the United States should make use of existing multilateral dispute settlement procedures to address concerns in the trading system rather than resorting to unilateral action. Supporters of the Administration's tariff actions argue that the tariffs and other import restrictions are a useful tool to protect domestic U.S. industries and incentivize U.S. trading partners to enter negotiations, in which they would otherwise have little interest in engaging. Some, including the Administration, also argue that the Section 301 actions address issues not adequately covered by existing WTO rules. Some observers also raise concerns over the scale of the Administration's actions, which have led to import restrictions imposed on nearly all U.S. trading partners, including some close allies such as Canada, Japan, Mexico, South Korea, and the EU. These groups agree with the U.S. concerns over specific trade practices by China, but support a more targeted approach that includes cooperation between the United States and other countries that share U.S. concerns over violations to and shortcomings of the existing international trading system. While the United States is involved in multilateral discussions at various levels on potential reforms to the global trading system, specifically the WTO, some analysts argue ongoing tension resulting from the U.S. unilateral actions could hamper these efforts. The complex nature of international commerce, including its highly integrated global supply chains, makes difficult the accurate prediction of the effects of broad tariff actions on specific industrial sectors or individual companies. For example, the Administration imposed Section 201 safeguard tariffs on washing machines to support domestic manufacturers of washing machines, but these same domestic manufacturers now argue that subsequent Section 232 tariffs on steel and aluminum have led to increases in their input costs and caused further economic harm. U.S. domestic auto production, which the Trump Administration may seek to encourage through additional Section 232 tariffs now under investigation, is similarly negatively affected by the existing steel and aluminum tariffs. Retaliation in the form of increased tariffs on U.S. exports further complicates the economic outcome of the unilateral U.S. actions. Many companies also report that uncertainty resulting from the unpredictable nature of the U.S. and retaliatory actions has made long-term planning difficult; this may be putting a drag on U.S. and global economic activity. Others, including some domestic producers, argue that action was needed to prevent more injurious trade practices from occurring and to eventually achieve broader agreement on reducing tariff barriers and establishing new trading rules. Yes. Two pending Section 232 investigations on U.S. motor vehicle and parts imports and uranium are underway, which could lead to future import restrictions. Additionally, the scheduled increase in the tariff rate on the third tranche of Section 301 tariffs on U.S. imports from China could occur in the near future, as well as potential new tariffs on additional U.S. imports from China, absent a trade agreement to resolve the core issues that are the subject of current bilateral trade discussions. U.S. motor vehicle and parts imports totaled $361 billion in 2017, according to the U.S. Census Bureau. These goods are among the top U.S. imports supplied by a number of U.S. trading partners, including Canada, Mexico, Japan, South Korea, and the EU, making an increase in U.S. tariffs that applies to these countries economically significant and likely to result in retaliatory action. Canada and Mexico are currently exempt from future auto 232 tariffs for a limited amount of imports under the proposed USMCA agreement. With respect to the EU and Japan, the Administration has notified Congress of its intent to negotiate bilateral trade agreements and informally agreed to refrain from imposing new auto tariffs while those talks progress. South Korea is the only major U.S. auto supplier without a formal or informal assurance from the Trump Administration that it will be exempt from Section 232 auto tariffs, despite recently implemented modifications to the U.S.-South Korea (KORUS) free trade agreement (FTA). A delay in ratification and implementation of the proposed USMCA, or a breakdown in talks with the EU and Japan could make an escalation on this front more likely. As noted, President Trump has warned that he will follow through with his threat to increase Section 301 tariffs on $200 billion worth of products from China from 10% to 25% if a trade agreement is not reached by March 1, 2019, or potentially soon thereafter. He has also threatened increased tariffs on an additional $267 billion worth of imported Chinese products. China imports far less from the United States than it exports and therefore could not match U.S. tariffs on a comparable level of U.S. products, but it could increase the level of the tariffs on products that have already been impacted by retaliatory Section 301 tariffs, in addition to raising tariffs on U.S. products that have not yet been subject to retaliatory tariffs. Further, the Chinese government could take other retaliatory action, calling on its citizens to boycott the purchase of American goods and services in China, curtailing the operations of U.S. manufacturing firms in China, ordering Chinese firms to halt purchases of certain high-value U.S. products (e.g., Boeing aircraft) or restricting its citizens from traveling to, or investing in, the United States. The Chinese government could also choose to halt purchases of U.S. Treasury securities and possibly sell off some of its holdings. The Administration has imposed tariffs on U.S. goods accounting for $282 billion of U.S. annual imports, using 2017 trade values. Section 301 actions currently account for the greatest share (83%) of affected imports. U.S. annual imports of products covered under the Section 301 actions currently total $235 billion, compared with $40 billion (14%) under Section 232, and $7 billion (3%) under Section 201 ( Figure 3 ). The potential Section 232 actions on motor vehicles and uranium could cover an additional $361 billion and $2 billion, respectively in U.S. imports, depending on the countries and products included. The scope of U.S. imports affected vary across the three different actions. Section 201 actions cover U.S. imports of washers, washing machine parts, and solar cells and modules. Section 232 actions cover U.S. imports of steel and aluminum products. Section 301 actions cover a broad range of U.S. imports from China. To date, the Administration has imposed increased tariffs under Section 301 on nearly 7,000 products at the 8-digit harmonized tariff schedule (HTS) level. Figure 4 below lists the top 15 products subject to the Section 301 import tariffs classified according to 5-digit U.S. end-use import codes. The major categories are telecommunications equipment, computer accessories, furniture, and vehicle parts. To date, U.S. trading partners have retaliated against U.S. Section 232 and Section 301 actions. China, Japan, and South Korea have also announced planned retaliation to U.S. Section 201 actions, but in line with WTO commitments on safeguard retaliations, they are not to be imposed until 2021. The total actions to date affect approximately $126 billion of annual U.S. exports, using 2017 trade values. The retaliations against U.S. Section 232 actions affect U.S. exports to six trade partners: Canada, Mexico, the EU, China, Turkey, and Russia. The retaliation is similar to the U.S. actions both in terms of the tariff rates (most are in the range of 10%-25%) and the products covered (steel or aluminum are among the top products targeted). Other major products targeted include food preparations and agricultural products, yachts, motorcycles, whiskies, and some heavy machinery ( Figure 5 ). In total, approximately $25 billion of U.S. annual exports are potentially affected by trade partner retaliations against the U.S. Section 232 actions. Retaliatory tariffs imposed by China in response to U.S. Section 301 actions affect approximately $101 billion of U.S. annual exports, accounting for about 80% of U.S. exports subject to retaliatory tariffs currently in effect ( Figure 6 ). Like the retaliation in response to U.S. Section 232 actions, agricultural products are a main target. Soybeans, which accounted for $14 billion of U.S. exports to China in 2017, are the top overall export affected. Motor vehicles were the second-largest category of exports under the Section 301 retaliation, but these retaliatory tariffs have been temporarily suspended as part of the recent efforts at bilateral U.S.-China negotiations to resolve the trade conflict. The Chinese retaliatory tariffs, like the U.S. Section 301 tariffs, range from 10%-25% and cover thousands of tariff lines. U.S. and retaliatory tariffs differ in both scale and scope of products covered. The United States has placed increased tariffs on products accounting for approximately $282 billion of annual U.S. imports, while retaliatory tariffs cover approximately $126 billion of annual U.S. exports, using 2017 trade values. China, which is subject to the largest share of new U.S. tariffs and has imposed the largest share of new retaliatory tariffs, imports far less from the United States than the United States imports from China, limiting the amount of retaliatory tariffs China can impose on U.S. exports. (See discussion on " Is further escalation and retaliation possible? ") In terms of the products covered, the largest categories of U.S. imports affected by the tariffs are capital goods and industrial supplies ( Figure 7 ). This suggests that, to date, U.S. tariffs are concentrated on products primarily used as inputs in the production of other goods rather than on final consumption goods; therefore the effects of the tariffs may be most pronounced in increased costs for U.S. producers. Among U.S. exports, food and beverages is the second-largest category of goods facing retaliatory tariffs, suggesting that U.S. agriculture producers are among the groups most negatively affected by the retaliatory actions. As a share of overall U.S. trade, approximately 12% of annual U.S. goods imports ($282 billion of $2,342 billion total imports) are subject to increased U.S. tariffs under the Trump Administration's actions ( Figure 8 ). Approximately 8% of annual U.S. goods exports ($126 billion of $1,546 billion total exports) are subject to increased tariffs under partner country retaliatory actions. If the United States moves forward with additional tariffs under the two pending Section 232 investigations on U.S. imports of motor vehicles/parts and uranium, the share of affected U.S. imports could increase up to nearly 30%. U.S. motor vehicle and parts imports totaled $361 billion in 2017. A variety of factors likely go into a country's decision regarding which products to target for retaliation. Retaliatory tariffs are explicitly targeted to encourage the United States to remove its Section 232 and Section 301 tariffs, whereas the Trump Administration's enacted and proposed tariffs aim both to alter U.S. trading partners' practices more broadly, including reducing existing tariff and nontariff barriers, and to protect domestic industries. Retaliatory tariffs can have negative effects on both the exporting country (the United States) and the importing country imposing the retaliation. Therefore, retaliating countries are likely to target products that create the most pressure on the United States to change its policy while minimizing any negative effects on themselves. Some factors that may create greater pressure for U.S. policy change include (1) demand for the targeted product is price sensitive (i.e., demand is price elastic), therefore a small tariff increase will lead to a sharper decline in exports; (2) the retaliating country is a major world market for the product, in which case the exports may not be easily diverted to other markets; and (3) the producers of the targeted products in the United States (i.e., those negatively affected by the tariffs) have high levels of political influence (e.g., the product is made in congressional districts with Members on key committees). Factors that would decrease the negative effects on the importer (retaliating country) include (1) other countries competitively produce the product allowing for alternate sourcing; and (2) importers can easily substitute a different product for the targeted import (e.g., substituting wheat for corn for animal feed). Retaliating countries might also seek to impose similar tariffs as those against which they are retaliating (e.g., steel and aluminum are the top products subject to retaliation in response to the Administration's Section 232 steel and aluminum tariffs). Retaliating countries may also seek to lessen the negative impacts of the tariffs on certain segments of the population (e.g., a country might target luxury goods consumed by higher income groups rather than basic food and apparel products that account for a larger share of low-income household consumption). Yes. The President has the authority to reduce, modify, or terminate import restrictions imposed under Sections 201, 232, and 301. Certain limitations on the President's authority to modify the tariffs apply as specified in the relevant statutes. The President has adjusted several tariff increases since they were initially proclaimed. For example, the President increased the tariff on U.S. steel imports from Turkey under Section 232 from 25% to 50%. However, certain U.S. importers of Turkish steel have brought a challenge to this tariff increase at the U.S. Court of International Trade. Similarly, the President has modified actions taken under Section 301 by increasing the scope of imports from China that are subject to new tariffs. Some products have also received exemptions from the tariff measures, explained below. In Presidential Proclamation 9693, announcing the Section 201 action on solar products, the President gave the USTR 30 days to develop procedures for exclusion of particular products from the safeguard measure. On February 14, 2018, the USTR published a notice establishing procedures to consider requests for the exclusion of particular products. Based on that notice, the USTR received 48 product exclusion requests and 213 subsequent comments responding to these requests by the deadline, March 16, 2018. On September 19, 2018, the USTR announced a limited number of solar product exclusions, and indicated that additional requests received by the March 16, 2018 deadline remained under evaluation. Canada is excluded from the additional duties on washers. Certain developing countries were excluded, provided that they account for less than 3% individually or 9% collectively of U.S. imports of solar cells or large residential washers, respectively. All other countries are covered by the Section 201 trade actions. Individual countries and products may be exempted from the Section 232 tariffs. According to the initial presidential proclamation, countries with which the United States has a "security relationship" may discuss "alternative ways" to address the national security threat posed by imports of steel and aluminum and gain an exemption from the tariffs. To date four countries have reached agreements with the United States exempting them from part or all of the Section 232 tariffs: 1. South Korea agreed to an absolute annual quota for 54 separate subcategories of steel in place of the steel tariffs. South Korea did not negotiate an agreement on aluminum and has been subject to the aluminum tariffs since May 1, 2018. 2. Brazil was permanently exempted from the steel tariffs, having reached final quota agreements with the United States on steel imports. Brazil, like South Korea, did not negotiate an agreement on aluminum and has been subject to the aluminum tariffs since June 1, 2018. 3. Argentina was permanently exempted from the steel and aluminum tariffs and agreed to absolute quotas for each. 4. Australia gained a permanent exemption from the tariffs without any quantitative restrictions. The 232 product exclusion process is administered by the Department of Commerce's Bureau of Industry and Security (BIS). Thousands of requests have been filed to date and the exclusion process has been the subject of criticism and scrutiny by several Members of Congress and other affected stakeholders. To limit potential negative domestic impacts of the tariffs on U.S. consumers and consuming industries, Commerce published an interim final rule for how parties located in the United States may request exclusions for items that are not "produced in the United States in a sufficient and reasonably available amount or of a satisfactory quality." The rule went into effect the same day as publication to allow for immediate submissions. Requesters must complete the official response form spreadsheets for each steel and aluminum exclusion and submit the forms on regulations.gov, where both requests for exclusions and objections to requests are posted. There is no time limit for submitting an exclusion request. Each requester must complete a separate application for each product to be considered for exclusion. Exclusion determinations are to be based on national security considerations, but the specific nature of these considerations remain undefined. To minimize the impact of any exclusion, the interim rule allows only "individuals or organizations using steel articles ... in business activities ... in the United States to submit exclusion requests," eliminating the ability of larger umbrella groups or trade associations to submit petitions on behalf of member companies. A parallel requirement applies for aluminum requests. Any approved product exclusion will be limited to the individual or organization that submitted the specific exclusion request. Parties may also submit objections to any exclusion within 30 days after the exclusion request is posted. The review of exclusion requests and objections will not exceed 90 days. Exclusions will generally last for one year. Companies and some Members of Congress have criticized the intensive, time-consuming process to submit exclusion requests, the lengthy waiting period for a response from Commerce, what some view as an arbitrary nature of acceptances and denials, and the fact that all exclusion requests to date have been rejected when a U.S. steel or aluminum producer has objected to it. (See " Have Members of Congress and other stakeholders raised issues regarding the product exclusion process? ") In response, Commerce announced a new rule to allow companies to rebut objections to petitions. The new rule, published September 11, 2018, includes new rebuttal mechanisms, more information about the exclusion submission requirements and process, and the criteria Commerce uses in deciding whether to grant an exclusion request. In September, Commerce provided revised estimates of the anticipated number of exclusion requests (96,954) and objections (38,781). To streamline and increase the transparency of the process, Commerce developed an online portal for users to submit requests for exclusions, objections, rebuttals, or surrebuttals. Commerce began testing the portal in December 2018 with the goal of implementing it in early 2019. During the Section 301 notice and comment period on proposed Section 301 tariff increases, the USTR heard from a number of U.S. stakeholders who expressed opposition and/or concern about how such measures could impact their businesses, as well as U.S. consumers. In response, the USTR created a product exclusion process, whereby firms could petition for an exemption from the Section 301 tariff increases for specific imports. The USTR stated that product exclusion determinations would be made on a case-by-case basis, based on information provided by requesters that showed Whether the particular product is available only from China; Whether the imposition of additional duties on the particular product would cause severe economic harm to the requester or other U.S. interests; and Whether the particular product is strategically important or related to ''Made in China 2025'' or other Chinese industrial programs. To date, USTR has only created this product exclusion process for the first two stages of tariff increases under Section 301. Several Members of Congress have sent letters to the USTR calling for an exclusion process for stage three tariffs as well. The joint explanatory statement to the FY2019 appropriations law ( P.L. 116-6 ), enacted February 15, 2019, directs USTR to establish a product exclusion process for stage three tariffs within 30 days. Several Members of Congress have raised concerns about the Section 232 exclusion process. For example, in a letter to Commerce Secretary Wilbur Ross, and at a June 2018 hearing, then-Chairman of the Senate Finance Committee Chairman Orrin Hatch and Ranking Member Ron Wyden urged improvements to the product exclusion procedures on the basis that the detailed data required placed an undue burden on petitioners and objectors. They also suggested that the process appeared to bar small businesses from relying on trade associations to consolidate data and make submissions on behalf of multiple businesses. The letter further stated that Commerce had not instituted a clear process for protecting business proprietary information. In a follow-up letter to the Secretary of Commerce in December, Senators Hatch and Wyden recognized that some improvements had been made to the exclusion process but identified further issues raised by stakeholders and U.S. businesses. They asked Commerce to address the concerns by adhering to the published timelines for reviewing requests and making specific changes to how the agency handles requests with technical defects. Some Members have used multiple channels to continue to raise issues. A bipartisan group of House Members articulated concerns about the speed of the review process and the significant burden it places on manufacturers, especially small businesses. The Members' letter included specific recommendations, such as allowing for broader product ranges to be included in a single request, allowing trade associations to petition, grandfathering existing contracts to avoid disruptions, and regularly reviewing the tariffs' effects and sunsetting them if they have a "significant negative impact." In September 2018, during an oversight hearing, multiple Senators raised concerns directly to the Assistant Secretary for Export Administration, Bureau of Industry and Security at Commerce, about agency management of the Section 232 exclusion process, including staffing and funding levels, and the need for greater transparency, among other issues. Some Members have questioned the Administration's processes and ability to pick winners and losers through granting or denying exclusion requests. On August 9, 2018, Senator Ron Johnson requested that Commerce provide specific statistics and information on the exclusion requests and process and provide a briefing to the Committee on Homeland Security and Governmental Affairs. Senator Elizabeth Warren requested that the Commerce Inspector General investigate the implementation of the exclusion process, including a review of the processes and procedures Commerce has established, how they are being followed, and if exclusion decisions are made on a transparent, individual basis, free from political interference. She also requested evidence that the exclusions granted meet Commerce's stated goal of "protecting national security while also minimizing undue impact on downstream American industries," as well as evidence that the exclusions granted to date strengthen the national security of the United States. In response to a formal request by Senators Pat Toomey and Tom Carper, the Government Accountability Office (GAO) announced on December 12, 2018, it will investigate the Section 232 product exclusion process in early 2019. Congress authorized additional funds for the Section 232 product exclusion process in the FY2019 appropriations law ( P.L. 116-6 ), and in the accompanying joint explanatory statement, stipulated that Commerce provide quarterly reports to Congress on its administration of the process. The Section 301 exclusion process managed by USTR and effective for the first two tranches of Section 301 tariffs has not attracted the same level of attention from Congress as the Section 232 exclusion process. A bipartisan group of more than 160 Representatives, however, have urged the Administration to allow product exclusions on the third and largest tranche of Section 301 tariffs, and the joint explanatory statement to P.L. 116-6 , directs USTR to establish such an exclusion process within 30 days of the law's enactment. Changes in tariffs affect economic activity directly by influencing the price of imported goods and indirectly through changes in exchange rates and real incomes. The extent of the price change and its impact on trade flows, employment, and production in the United States and abroad depend on resource constraints and how various economic actors (foreign producers of the goods subject to the tariffs, producers of domestic substitutes, producers in downstream industries, and consumers) respond as the effects of the increased tariffs reverberate throughout the economy. Retaliatory tariffs, which U.S. trading partners have imposed in response to U.S. Section 232 and Section 301 tariffs, also affect U.S. exporters. The following outcomes (summarized in Table 1 ) are generally expected at the level of individual firms and consumers: U.S. consumers: Higher tariff rates generally lead to price increases for consumers of the goods subject to the tariffs and for consumers of downstream products as input costs rise. Higher prices in turn lead to decreased consumption depending on consumers' price sensitivity for a particular product. As one example, the monthly price of washing machines in the United States, which are currently subject to tariff increases under Section 201, has increased by as much as 12% compared to January 2018 before the tariffs became effective ( Figure 9 ). U.S. producers of domestic substitutes: U.S. producers competing with the imported goods subject to the tariffs (e.g., domestic steel and aluminum producers) may benefit to the degree they are able to charge higher prices for their domestic goods. However, in the short run, U.S. producers' ability to increase production may be limited. A broad index of U.S. steel producer prices was up 14% in December relative to March, when the Section 232 tariffs first took effect. A similar price indicator for aluminum refining and primary aluminum production shows more volatile prices, with the index down 6.2% between March 2018 and December 2018. U.S. producers in downstream industries: U.S. producers using goods subject to the additional tariffs as inputs may be harmed because the tariffs may cause their costs to increase. U.S. motor vehicle producers may be among the industries most hurt since they face: (1) higher input costs for steel; (2) tariffs on parts accounting for $20 billion of annual imports; and (3) retaliatory tariffs on assembled motor vehicle exports to China accounting for $13 billion of annual exports ( Figure 10 ). U.S. exporters subject to retaliatory tariffs: U.S. exporters facing retaliatory tariffs may be at a price disadvantage in export markets relative to competitors from other countries, which may decrease demand for U.S. exports to those markets. Since Section 232 retaliatory tariffs took effect in the EU, Canada, and Mexico in July, U.S. average monthly exports of the products subject to retaliation have been below their pre-tariff monthly 2018 average by 37%, 23%, and 10%, respectively ( Figure 11 ). China purchases such a large share of certain U.S. agricultural exports—China accounted for 57% of all U.S. soybean exports in 2017—its retaliatory tariffs and the subsequent decline in export sales may have contributed to depressed U.S. prices for some commodities. Foreign producers of the goods subject to the tariffs: Foreign producers can also be affected by tariff increases if consumer demand falls in response to rising prices. In some instances, typically when demand is very price sensitive, or highly elastic, foreign producers may choose to lower their prices and absorb a portion of the tariff increase. The degree to which foreign producers change their prices in response to tariff changes is known as the tariff pass-through rate. Over a longer time horizon, production may shift to other countries to avoid the increased tariffs imposed on products manufactured in the countries affected. In addition to these microeconomic effects, tariffs can also affect macroeconomic variables. With regard to the value of the U.S. dollar, as demand for foreign goods may fall in response to higher tariffs, U.S. demand for foreign currency may also fall, putting upward pressure on the relative exchange value of the dollar. This in turn would reduce demand for U.S. exports and increase demand for foreign imports, partly offsetting the effects of the tariffs. Tariffs may also affect national consumption patterns, depending on how the shift to higher cost domestic substitutes affects consumers' discretionary income and therefore aggregate demand. In the current tight labor environment tariffs may have less impact on overall U.S. employment levels, but may result in some movement of workers between industries and potential industry-specific unemployment as labor demand rises in domestic industries benefitting from the tariffs and falls in industries harmed by increased input costs or retaliatory tariffs. Economists generally agree that a reallocation of resources, including capital and labor, based on price distortions such as tariffs reduces efficiency and productivity over the long run. U.S. government and international institutions, think tanks, and consulting groups have prepared estimates of the potential impacts of the tariffs by projecting trade values using historical trade data and various modeling techniques ( Table 2 ). These studies have produced a range of estimates, but generally suggest a moderately negative impact. The Congressional Budget Office, for example, estimates a 0.1% decline in the annual U.S. GDP growth rate resulting from the tariffs currently in place, while the International Monetary Fund (IMF) estimates approximately a 0.2% decline in the annual U.S. GDP growth rate. Most studies show slight employment gains and production increases in U.S. industries competing with the imports subject to additional tariffs and declines in sectors facing retaliation and heavily reliant on inputs subject to additional tariffs. The net estimated effects are relatively modest, because approximately 10.5% of U.S. annual trade (12% of imports and 8% of exports) is affected by the tariff actions to date and trade represents a moderate share of total U.S. economic activity (27% of U.S. GDP in 2017). However, the effects may be substantial for individual firms reliant either on imports subject to the U.S. tariffs or exports facing retaliatory measures, as well as consumers for whom the affected products account for a large share of consumption. The effects could grow if U.S. tariff actions and retaliation escalates. The IMF, for example, estimates that U.S. GDP growth could fall by approximately 1% and global growth could fall by 0.8% if the United States goes forward with an additional 25% tariff on imports from China and on motor vehicle imports from a number of countries, and partner countries retaliate. For context, in 2017 U.S. GDP was $19.5 trillion, making a 1% decline equivalent to a reduction in GDP of $195 billion. Staff from the Federal Reserve Board of Governors, recently noted that "trade policies and foreign economic developments could move in directions that have significant negative effects on U.S. economic growth." Part of this decline in economic growth reflects concern that the tariff escalation also creates a general environment of uncertainty. Economic research on uncertainty suggests it may lead to lower investment and generally restrain economic activity, including trade . These estimates, however, should be interpreted with caution because (1) they require various assumptions that can affect the predicted outcomes; (2) the extent of the U.S. tariffs and retaliation has fluctuated significantly in recent months and is subject to change; and (3) some of the studies were produced or sponsored by stakeholders advancing specific interests. Economists from the Federal Reserve Bank of Atlanta also note that because tariffs have decreased significantly over the past several decades, there is a dearth of recent empirical evidence to inform models on tariff increases. Most economists agree that the U.S. and global economies have benefitted significantly from the major reduction in global tariff rates that has taken place since the 1940s. If tariff rates were to increase for a significant period of time it could insulate domestic producers from foreign competition, and potentially lead to less efficient and competitive production. This in turn could lead to lower overall economic growth in the United States and abroad, since more closed economies are generally less dynamic, with less innovation and productivity growth. Furthermore, retaliatory tariffs are particularly damaging to U.S. exporters in foreign markets because, unlike multilateral tariffs, the retaliatory tariffs only target U.S. imports. Therefore, exporters from other countries that compete with U.S. firms are likely to be more competitive in the retaliatory markets. Recent trade agreements involving major U.S. trade partners, but not the United States, such as the new EU-Japan FTA and the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP or TPP-11) agreement, which consists of the 11 countries remaining in the TPP following the U.S. withdrawal, may likely compound this competitive disadvantage for U.S. exporters. Some argue it may be difficult for U.S. exporters to regain lost export opportunities in the future once importers establish relationships with suppliers from other countries. Another potential long-term effect of the tariffs is a shift in the U.S. role in international economic policymaking. While some stakeholders question the benefits of the dominant U.S. role in global rules-setting, others argue this has generally been of benefit to the United States, allowing U.S. priorities to feature prominently in existing international trade obligations. There are also concerns over the potential geopolitical aspects of tariff escalation. Some argue that the highly integrated nature of the global economy today acts as a deterrent to military conflict. Conversely, if tariff escalation creates a more fragmented global economy or imposes significant costs on a particular economy, it may lessen this deterrent. In addition to studies on the potential macroeconomic effects of the tariffs, a variety of anecdotal information on the tariffs' impact on specific businesses can be found in press reports or quarterly or annual company reporting. The President's tariff actions and subsequent retaliatory tariffs are only one of many factors influencing economic conditions for U.S. companies, making it difficult to assess the tariffs' direct effects. In general, this anecdotal information largely conforms to the theoretical effects of the tariffs outlined in this report. Companies stating they have benefitted from the tariffs are producers competing with the imported products subject to the tariffs, while many downstream manufacturers and retailers assert they have been harmed. Many U.S. exporters subject to retaliatory tariffs also argue that these trade policy actions have negatively affected their operations. For some U.S. producers, the effects of the tariffs have been more complex, including companies that are both benefitting from higher domestic prices due to the tariffs while also being harmed by higher input costs. Companies with major overseas operations argue they have been indirectly harmed through lower sales abroad resulting from an economic slowdown in the countries subject to the Administration's tariff actions. The text box below provides selected examples of companies in each of these four broad categories. China plays an important role for many U.S. multinational firms that rely on global supply chains to manufacture their products. In some cases, U.S. firms source production of parts and components around the world and use China as a final point of assembly for products (e.g., Apple Corporation's iPhone), which are then largely exported. In other instances, firms import parts and components from China to use them in manufacturing products domestically. The use of global supply chains often enables firms to concentrate more of their activities on higher value-added activities. Such factors enable firms to lower costs (making them more globally competitive) and reduce prices for consumers (increasing their purchasing power), which should boost economic growth. The extensive use of global supply chains also result in U.S. imports from China containing foreign-made intermediates, including from the United States. A study by the Organization for Economic Cooperation and Development (OECD) estimated that 40.2% of the value of China's manufactured gross exports in 2011 came from foreign inputs. Many U.S. firms have argued that imposing increased tariffs on imports from China will disrupt global supply chains and could undermine the competitiveness of U.S. firms. To illustrate in a July 27, 2018, letter to USTR Robert Lighthizer, forty-nine members of the Congressional Semiconductor Caucus stated that while the signers supported the Administration's goals of improving China's practices on intellectual property rights, forced technology transfer, and innovation, they opposed using tariff increases to obtain such results: Tariffs on semiconductors will not impact Chinese companies since they export almost no semiconductors to the U.S. market. Instead these tariffs would harm U.S. companies and innovators. Most U.S. imports of semiconductors from China are designed and manufactured by U.S. firms, largely in the United States, then shipped to China for final assembly, test, and packaging. This step in the semiconductor manufacturing process comprises approximately 10 percent of the final value of the product and does not result in the transfer of valuable IP. Similarly, imports of finished semiconductor tools are essentially non-existent. Rather, imports of relatively low-value/low-IP components are incorporated into the high value-added tools made by the U.S. equipment makers and sold around the world. The U.S. Chamber of Commerce and the Brookings Institut ion have examined how the retaliatory tariffs could affect state and metropolitan economies by tallying the total exports subject to retaliation by location. The Chamber's website allows users to select a specific state for more information, while Brookings' website includes a downloadable dataset searchable by specific metropolitan area. According to Brookings, although major metropolitan areas Houston, Chicago, Los Angeles, Dallas, Seattle, and Detroit export the largest overall value of products subject to retaliatory tariffs, with over $2 billion of annual exports affected from each metropolitan area, some rural communities have a much larger share of their total exports subject to retaliation as their exports may be concentrated in certain industries. State-level trade data are also accessible directly from the Census Bureau at usatrade.census.gov. The U.S. Department of Agriculture (USDA) is making available about $12 billion in financial assistance to farmers and ranchers affected by the retaliatory tariffs in the form of direct payments, food purchases, and export promotion assistance. USDA expects that about $9.6 billion will be used for direct payments to qualifying agricultural producers of soybeans, corn, cotton, sorghum, wheat, hogs, dairy, fresh sweet cherries, and shelled almonds. Of those funds, more than three-fourths ($7.3 billion) of the payments are likely to go to soybean producers. To be eligible, a producer must have an ownership share in the commodity, be actively engaged in farming, and be in compliance with adjusted gross income restrictions and conservation provisions. Payments are capped on a per-person or per-legal-entity basis. The sign-up period to request assistance ended on February 14, 2019. The Administration has also created a Food Purchase and Distribution Program that is to undertake $1.2 billion in government purchases of excess food supplies. USDA has targeted an initial 29 commodities for purchase and distribution through domestic nutrition assistance programs. Purchasing orders and distribution activities are to be adjusted based on the demand by the recipient food assistance programs geographically. The smallest piece of the trade aid package is an allocation of $200 million to boost the trade promotion efforts at USDA. U.S. trade partners have reportedly raised questions over the overall U.S. aid package at WTO Agriculture Committee meetings and are closely monitoring U.S. compliance with related WTO obligations on subsidies. President Trump has repeatedly raised concerns over the size of the U.S. goods trade deficit (i.e., the amount by which total U.S. goods imports exceed total U.S. goods exports), including making trade deficit reduction a stated objective in new U.S. trade agreement negotiations. While tariffs are expected to reduce imports initially, they are unlikely to reduce the overall trade deficit due to at least two indirect effects that counteract the initial reduction in imports. One indirect effect is a potential change in the value of the U.S. dollar relative to foreign currencies. A reduction in imports reduces demand for foreign currency, putting upward pressure on the foreign exchange value of the U.S. dollar, thereby making U.S. exports more expensive abroad and imports less expensive in the United States. Another potential effect of U.S. import tariffs is retaliatory tariffs, which are likely to reduce demand for U.S. exports. Recent empirical research studying tariff adjustments in a panel of countries supports this theoretical framework and finds no significant evidence of tariffs improving a country's trade balance. Economists generally also argue that while tariffs placed on imports from a limited number of trading partners may reduce the bilateral U.S. trade deficit with those specific countries, this is likely to be offset by an increase in the trade deficit or reduction in the trade surplus with other countries, leaving the total U.S. trade deficit largely unchanged. This is because the trade deficit generally reflects a shortfall in national saving relative to investment, which tariffs do not address. The U.S. goods trade deficit grew in 2018. From January to November 2018, the latest month for which trade data are available, the U.S. goods trade deficit totaled $806 billion, increasing from $731 billion for the same period in 2017. In every month except May, the goods trade deficit was larger in 2018 compared to the same month in 2017 ( Figure 12 ). This may reflect broader positive economic conditions: when the U.S. economy grows demand for both domestic and imported goods rises. It may also, in part, be a result of importers front-loading purchases of foreign goods in an attempt to avoid potentially higher tariffs in the future. Meanwhile, a trade-weighted index of the exchange value of the U.S. dollar against the currencies of a broad group of major trading partners increased by about 10% throughout 2018. The strengthening dollar counteracts the effect of the tariffs by making imports less costly in the United States and U.S. exports more costly in foreign markets. Through Section 201, 232, and 301, Congress has delegated to the President some of its constitutional authority to enact import restrictions, including certain tariff changes. Each of the authorities require an investigation and recommendations of appropriate actions by a key agency; the Department of Commerce and USTR have primary roles in Section 232 and 301 investigations, respectively, while the International Trade Commission (ITC), an independent agency with an equal number of Democratic and Republican commissioners, oversees Section 201 investigations. Multiple proposals have been introduced in both the 115 th and 116 th Congress to amend the President's trade authorities, particularly with respect to Section 232. The majority of these proposals would expand the role of Congress in determining whether or not to impose tariffs. In the 116 th Congress, debate over congressional and executive powers to regulate tariffs has generated multiple proposals to limit the President's trade authorities, along with other reforms (see Table 3 ). Examples include measures that would 1. Require congressional approval before certain Presidential trade actions would go into effect; 2. For the purposes of Section 232 investigations, explicitly define national security and related imports, and task the independent ITC with administering a product exclusion request process; 3. Transfer primary responsibility for Section 232 investigations to the Secretary of Defense from the Secretary of Commerce; 4. Provide an option for Congress to nullify Section 232 actions, by passing a joint disapproval resolution; and 5. Stall the current Section 232 investigation into auto imports. In contrast to proposals to limit the President's trade authority, the White House is actively supporting a measure introduced by Representative Sean Duffy ( H.R. 764 ), that seeks to expand the President's authorities. H.R. 764 would grant the President additional authority to increase tariff rates to match the rates of foreign trading partners, on a country-by-country and product-by-product basis. In the 115 th Congress, proposals to amend trade authorities varied, though most focused on potential modifications to Section 232. Some proposals sought to require additional consultations with Congress or require congressional approval or disapproval of certain trade actions. Other proposals sought to override or suspend specific trade actions by the Trump Administration. A nonbinding motion calling for a congressional role in Section 232 actions passed the Senate, but no other bills to amend the President's trade authorities passed in the 115 th Congress. U.S. Customs and Border Protection (CBP) assesses and collects duties on U.S. imports, including the additional duties imposed as a result of the President's tariff actions. According to information provided by CBP, the following revenue was assessed from the additional duties imposed by the President's tariff actions as of February 21, 2019 (note the tariffs were imposed at different times during 2018 and therefore the collected revenue does not represent a full calendar year): The tariffs collected are put in the general fund of the U.S. Treasury and are not allocated to a specific fund, but are available for appropriations. In other more historical cases, revenue from duties on U.S. imports has been dedicated to specific uses. Examples include Section 32 of The Agriculture Adjustment Act provides for a permanent annual fiscal year appropriation to the U.S. Department of Agriculture (USDA) equal to 30% of "the gross receipts from [all] duties collected under the customs laws" during the calendar year preceding the beginning of the fiscal year for which they were appropriated. Section 203 of the Emergency Wetlands Resources Act of 1985 requires that quarterly payments of an amount equal to the amount of all import duties collected on arms and ammunition (HTSUS chapter 93) be used to partially fund a Migratory Bird Conservation Fund (MBCF), administered by the Department of the Interior. Section 3 of the Recreational Boating Safety and Facilities Act of 1980, as amended ( P.L. 96-451 ; 16 U.S.C. § 1606a), requires the Secretary of the Treasury to transfer, "at least quarterly," to the Reforestation Trust Fund (RT) "an amount equal to the sum of the tariffs received" on imports of forest and wood articles classified under specified headings of the HTSUS, subject to a cap of $30 million each fiscal year. The Continued Dumping and Subsidy Offset Act (CDSOA) of 2000, (Title X of P.L. 106-387 ) known as the "Byrd Amendment," amended existing antidumping and countervailing duty (CVD) laws by requiring that duties assessed pursuant to an AD or CVD order were to be deposited by CBP into special accounts and then distributed to "affected parties" (defined as a manufacturer, producer, farmer, rancher, worker representative, or association involved in or in support of an AD or CVD investigation) for certain "qualifying expenditures" (such as manufacturing facilities and equipment), as outlined in the act. In 2003, however, WTO dispute settlement and Appellate Body panels determined that the law violated U.S. obligations under the WTO Antidumping and Subsidies Agreements. Congress repealed CDSOA on February 8, 2006. On August 5, 2018, President Trump announced that the increased tariffs his Administration has imposed on steel, aluminum, washing machines, solar panels, and a variety of imported Chinese goods will begin to generate sufficient revenue to reduce the federal debt. The U.S. federal debt represents an accumulation of government borrowing over time, including as a result of annual budget deficits (i.e., when federal government outlays exceed revenue). In FY2018, the federal budget deficit was $779 billion and is projected by the Congressional Budget Office (CBO) to total $897 billion in FY2019, thus contributing to an increasing federal debt. The cumulative publicly held federal debt totaled $15.8 trillion at the end of FY2018, and is projected to increase to $16.6 trillion by the end of FY2019. To reduce the federal debt, the President's tariff actions would have to generate enough revenue to turn the projected budget deficit into a surplus, which could then be used to pay down the federal debt. Accounting for the additional tariffs imposed by the Administration to date, CBO projects that customs duties could generate additional revenue of approximately $34 billion in FY2019, or less than 4% of the projected FY2019 budget deficit. This suggests that at current levels, the President's tariff actions may slightly reduce the annual U.S. budget deficit, but will not generate a budget surplus and therefore will not reduce the annual U.S. debt, though they may result in the debt increasing at a slightly slower rate than would otherwise occur. Moreover, dynamic effects of the tariffs would be likely to reduce these revenues over time as price increases resulting from the tariffs are likely to shift consumption patterns toward less expensive alternatives (i.e. goods not subject to the tariffs). If the tariffs have a negative effect on economic growth, as most economists and CBO predict, they could also result in lower tax revenues more broadly as economic activity declines. In recent history, customs duties resulting from tariffs have not been a significant source of U.S. government revenue. In FY2018, individual income taxes generated more than half (50.6%) of U.S. government revenue, while tariffs or custom duties accounted for less than 2% of total receipts. Taxes create a distortion from market-based signals by altering the price of various economic activities. These altered prices can in turn alter economic outcomes more broadly as market actors make consumption and production decisions in response. Economists generally argue in favor of policies that minimize market distortions as much as possible, especially when they affect production and the allocation of resources. Tariffs or duties are a tax on imports, which raise the price of imports relative to domestic goods, encouraging consumption of domestic goods relative to foreign goods, and thereby potentially shifting production and diverting resources away from relatively efficient economic activities towards less efficient ones. Although there are instances in which economic theory suggests markets may not produce an optimal outcome, economists generally assert that tariffs are not the best tool to address these market failures. Governments, however, must collect revenue in order to fund their services. From an economist's viewpoint, the best source of revenue is one that creates the least distortion of economic activity. Tariffs are generally not viewed as the least distortionary tax. A potential benefit of tariffs as a source of revenue for some countries is the relative simplicity of their collection, which may explain why they remain significant as a share of government revenue in some least developed countries. Economists, however, generally urge developing countries to lessen their reliance on tariffs as a revenue source due to concerns that tariffs may lead to an inefficient allocation of resources. Until the 1910s, custom duties or tariffs were the main source of revenue for the U.S. government; since the creation of the current federal income tax system in 1913, tariff revenue has become an increasingly smaller share of the federal government's total budget receipts, accounting for less than 2% of total receipts in FY2018. In addition to tariffs possibly distorting the allocation of resources, they may also represent a less progressive form of taxation. As with other taxes, the burden of tariffs does not fall uniformly across goods or demographic groups; instead, it falls more heavily on traded goods and the populations that purchase them. Studies generally have found that, in the United States, tariffs harm low- and middle-income households more than high-income households, in large part because lower-income households spend more—as a proportion of their total expenditures—on tradable goods like food and apparel. Through multilateral (WTO) and bilateral and regional trade (FTA) agreements, the United States and its trading partners have committed not to raise tariffs above certain levels with limited exceptions. These exceptions include specific tariffs in response to unfairly traded goods that may cause or threaten to cause material injury, such as imports dumped on U.S. markets at below-production prices (anti-dumping duties) or imports benefitting from government subsidies (countervailing duties) as well as time-limited safeguard actions when a surge in fairly traded imports injures or threatens to injure a domestic industry. U.S. trade agreements also generally include broad exceptions for actions deemed necessary for "essential security interests." The United States argues that its recent tariff actions are allowed under WTO and FTA rules, while U.S. trading partners allege the U.S. actions are inconsistent with these rules and have responded with retaliatory tariffs and initiated dispute settlement actions to resolve their concerns. The United States meanwhile alleges that these retaliatory tariffs are likewise inconsistent with WTO and FTA rules and has similarly initiated WTO dispute settlement procedures in response. Several countries allege that U.S. actions are inconsistent with WTO rules and have initiated complaints under the WTO dispute settlement system, over tariffs imposed under Section 201 (safeguards), Section 232 (national security), and Section 301 ("unfair" trading practices) ( Table 4 ). The first step in the dispute settlement process is to request consultations, which provides WTO parties the opportunity to discuss the complaint and seek to reach a negotiated resolution without proceeding to litigation. If consultations fail to resolve the dispute (or if a party denies the request for consultations), the complainant country may request adjudication of the dispute by a WTO panel. The panel issues a ruling on whether the offending measure is consistent with the relevant provisions under WTO agreements; panel decisions can be appealed. On July 16, 2018, the United States filed its own WTO complaints over the retaliatory tariffs imposed by five countries (Canada, China, the EU, Mexico, and Turkey) in response to U.S. tariffs on steel and aluminum imports under Section 232. In late August, the United States filed a similar case against Russia. The United States has invoked the so-called national security exception in GATT Article XXI in defense of the tariffs, stating that the tariffs are not safeguards as claimed by the other WTO members in their consultation requests. As of the end of January 2019, all of the disputes are in the panel phase ( Table 5 ). The Administration's tariff actions have likely affected U.S. trade agreement negotiations in a number of ways. On one hand, existing and threatened tariffs may have adverse economic implications for certain U.S. trading partners (e.g., new motor vehicle tariffs on the EU and Japan) and may have encouraged those countries to enter negotiations with the United States to remove this threat of new tariffs as part of broader FTA negotiations. The tariffs, however, may have created a more contentious and unpredictable environment for U.S. trade agreement negotiations, since trade agreement partners may be concerned new tariffs could be imposed after they have entered into new agreements with the United States. Perhaps as a result, the Administration has begun negotiating specific language in its trade agreements regarding exemptions from new potential tariffs. For example, the proposed USMCA (renegotiated NAFTA) provides a specific exemption from potential new Section 232 motor vehicle tariffs for a limited amount of auto trade among the parties. Other countries may seek similar assurances in future U.S. FTA negotiations, including the proposed U.S. FTA negotiations with the EU, Japan, and the United Kingdom. Such language is unprecedented in U.S. FTAs. Concerns over the Section 232 steel and aluminum tariffs, which were not addressed in the USCMA, may also affect congressional approval of the renegotiated agreement. The United States was a chief architect of the post-World War II global trading system, including the WTO's dispute settlement mechanism. Critics have expressed concerns that the unilateral tariff actions will cause the United States to lose its standing as the predominant global leader of an open and rules-based trading system and chief supporter of more liberalized trade. With regard to the Section 301 actions, China, in particular, may see this shift in U.S. approach as an opportunity to take a more prominent role in setting global trade rules and standards that benefit or promote its interests and that may undermine those of the United States. China's media increasingly touts its economic system as a model for other countries to follow. In addition, U.S. Section 301 tariffs could harm a number of economies that depend on trade with China, either directly or as part of global supply chains, thus damaging relations with the United States. Retaliatory actions may also heighten concerns over the potential strain the Section 232 tariffs place on the international trading system. Many U.S. trading partners view the Section 232 actions as protectionist and in violation of U.S. commitments at the WTO and in U.S. FTAs, while the Trump Administration views the actions within its rights under those same commitments. Others have followed suit with retaliatory actions, which may violate their WTO commitments. If the dispute settlement process in those agreements cannot satisfactorily resolve this conflict, it could lead to further unilateral actions and a tit-for-tat process of increasing retaliation. This potential strain comes at a time when the United States has called for broader reforms of the WTO dispute settlement process, specifically with regard to the appellate body mechanism. Official sources of information regarding the U.S. tariff actions are publicly available through the government agencies responsible for investigating imports or enforcing tariff laws. The following resources include embedded links to agency documents as well as footnotes with official links. The Department of Commerce is the agency responsible for investigating Section 232 cases. Commerce's Bureau of Industry and Security (BIS) has published investigation reports and relevant FAQs on its website. Notices and submitted public comments are available in the Federal Register and on Regulations.gov . Final Investigation Reports on Section 232 Investigations (1981-2018) Compilation of BIS documents related to the steel and aluminum investigations and imposed tariffs FAQ on Product Exclusions for Section 232 Steel and Aluminum Tariffs Find Objections, Rebuttals, and Surrebuttals for Section 232 Product Exclusion Requests Commerce has published Federal Register notices announcing investigations, requesting public comment, and outline product exclusion procedures. Commerce has solicited and published public comments and product exclusion requests through Regulations.gov. The following dockets compile comments and related documents: Aluminum (Docket: BIS-2018-0002 ) Steel (Docket: BIS-2018-0006 ) Auto and auto parts (Docket: DOC-2018-0002 ) Uranium (Docket: BIS-2018-0011 ) ITC, the agency responsible for investigating Section 201 cases, has compiled lists of relevant documents concerning the investigations into imports of solar panels and washing machines . These resources include investigation documents, final reports by the Commission, and the primary Federal Register notices. ITC also maintains the U.S. Harmonized Tariff Schedule (HTS), which provides tariff rates for all merchandise imported into the United States. The tariff actions currently imposed under Section 201, Section 232, and Section 301 are noted within Chapter 99 of the HTS, which documents temporary modifications to the tariff schedule. ITC documents on safeguard investigation into solar panels ITC documents on safeguard investigation into washing machinesThe U.S. Harmonized Tariff Schedule (HTS) : Chapter 99 USTR , the agency responsible for investigating Section 301 cases, has compiled relevant documents about the Section 301 tariffs against Chin ese intellectual property practices on its website. The following USTR resources include the official notices, hearing transcripts, final lists of products subject to additional tariffs, and information on product exclusions. Findings of the Investigation into China's Acts, Policy, and Practices (March 22, 2018) Section 301 Investigations and Related Documents Section 301 Hearings into Proposed Tariffs Section 301: How to Request an Exclusion USTR has solicited and published public comments and product exclusion requests on Regulations.gov . The following dockets compile comments on proposed regulations and related documents, by trade action: Stage 1 Tariffs Notice and comments ( Docket: USTR-2018-0005 )Product exclusions ( Docket: USTR-2018-0025 ) Stage 2 Tariffs Notice and comments ( Docket: USTR-2018-0018 )Product exclusions ( Docket: USTR-2018-0032 ) Stage 3 Tariffs Notice and comments ( Docket: USTR-2018-0026 ) The President has announced these tariff actions through proclamation and presidential memorandum. Presidential documents are published in the Federal Register: Presidential proclamations on Section 201 (Donald J. Trump) Presidential proclamations on Section 232 (Donald J. Trump) Presidential documents on Section 301 (Donald J. Trump) Other presidential statements regarding tariff actions are posted on WhiteHouse.gov. CBP is the agency responsible for enforcing customs laws and collecting tariff revenue. The CBP website includes guidance on recent tariff actions for importers. Duty on Imports of Steel and Aluminum Articles under Section 232 of the Trade Expansion Act of 1962Section 301 Trade Remedies – Frequently Asked QuestionsQuota Bulletins , which track certain imports that are subject to quotas or quantitative limits.

Summary: The Constitution grants Congress the sole authority over the regulation of foreign commerce. Over the past several decades, Congress has authorized the President to adjust tariffs and other trade restrictions in certain circumstances through specific trade laws. Using these delegated authorities under three trade laws, President Trump has imposed increased tariffs, largely in the range of 10% - 25%, on a variety of U.S. imports to address concerns related to national security, injury to competing industries, and China's trade practices on forced technology transfer and intellectual property rights, among other issues. Several U.S. trade partners argue that these tariff actions violate existing U.S. commitments under multilateral and bilateral or regional trade agreements and have imposed tariffs on U.S. exports in retaliation. Congress continues to actively examine and debate these tariffs, and several bills have been introduced either to expand, limit, or revise existing authorities. U.S. Trade Laws Authorizing the President's Tariff Actions The President's recent tariff actions raise a number of significant issues for Congress. These issues include the economic effects of tariffs on firms, farmers, and workers, and the overall U.S. economy, the appropriate use of delegated authorities in line with congressional intent, and the potential implications and impact of these measures for broader U.S. trade policy, particularly with respect to the U.S. role in the global trading system. The products affected by the tariff increases include washing machines, solar products, steel, aluminum, and numerous imports from China. Retaliatory tariffs are affecting several U.S. exports, including agricultural products such as soybeans and pork, motor vehicles, steel, and aluminum. Using 2017 values, U.S. imports subject to the increased tariffs accounted for 12% of annual U.S. imports, while exports subject to retaliatory tariffs accounted for 8% of annual U.S. exports. A pending Section 232 investigation on motor vehicle and parts imports could result in increased tariffs on more than $360 billion of imports, and the President has stated that additional tariffs could be imposed on imports from China absent a negotiated agreement to address certain Chinese trade practices of longstanding concern to the United States. Although the consensus among most economists is that the tariffs are likely to have a negative effect on the U.S. economy overall, they may have both costs and benefits across different market sectors and actors. Import tariffs are effectively a tax on domestic consumption and thus increase costs for U.S. consumers and downstream industries that use products subject to tariffs. Retaliatory tariffs create disadvantages for U.S. exports in foreign markets, and can lead to fewer sales of U.S. products abroad and depressed prices. However, domestic producers who compete with affected imports can benefit by being able to charge higher prices for their goods. The Administration also argues the tariffs may have an indirect benefit if they result in tariff reductions by U.S. trading partners and lead to resolution of U.S. trade concerns affecting key sectors of the U.S. economy. Economic analyses of the tariff actions estimate a range of potential effects, but generally suggest a 0.1%-0.2% reduction in U.S. gross domestic product (GDP) growth annually owing to the actions to date. The economic effects of the President's actions are likely to be central to ongoing congressional debate on legislation to alter the President's tariff authority.