On March 30, 2026, U.S. Republican Senators Cynthia Lummis and Bill Cassidy jointly introduced the "Mined in America Act." This bill aims to achieve two structurally significant policy objectives: first, to enshrine the "Strategic Bitcoin Reserve" established by President Trump via executive order into federal law, granting it a solid legislative foundation; and second, to promote the expansion of domestic crypto mining in the U.S. by establishing a federal certification system, while gradually phasing out mining hardware sourced from certain foreign regions.
The backdrop for this legislation is that the U.S. now commands roughly 38% of global Bitcoin hash rate, making it the world’s largest single Bitcoin mining country. However, about 97% of the ASIC miners powering this hash rate are manufactured overseas. This "hash rate in America, hardware abroad" mismatch is increasingly viewed as a potential infrastructure vulnerability, especially as supply chain security becomes a national concern. This article will break down the event across five dimensions: bill provisions, data foundations, public opinion divides, industry impact, and possible evolutionary paths.
A Bill Blending Mining Policy and Reserve Legislation
The "Mined in America Act" was co-sponsored by Wyoming Senator Cynthia Lummis and Louisiana Senator Bill Cassidy. Lummis has long been one of Congress’s most active crypto industry advocates, previously championing market structure bills, crypto tax reform, and multiple attempts to legislate a strategic Bitcoin reserve. Cassidy’s focus, meanwhile, is on mining’s impact on domestic employment and energy infrastructure.
The bill centers on three key mechanisms:
First, it establishes a voluntary "Mined in America" certification system. The U.S. Department of Commerce would be authorized to set certification standards for crypto mining pools and facilities. Certified operators could access existing federal energy subsidies and rural development programs to reduce operational costs. The bill explicitly states that it does not create new fiscal outlays, but instead leverages existing federal frameworks.
Second, it phases out foreign-affiliated hardware. Certified mining facilities must commit to gradually discontinuing the use of mining equipment produced by companies from certain overseas regions. The global ASIC miner market is currently dominated by a handful of manufacturers, most of which are based in Asia. At the same time, the bill requires the National Institute of Standards and Technology (NIST) and the Manufacturing Extension Partnership (MEP) to assist domestic manufacturers in developing more secure and energy-efficient mining hardware.
Third, it codifies the Strategic Bitcoin Reserve into law. In March 2026, Trump signed an executive order establishing a strategic Bitcoin reserve held by the Treasury, sourced from Bitcoin seized through criminal or civil asset forfeiture. This bill elevates the reserve framework from executive order to statutory law, preventing future presidents from unilaterally revoking it.
It’s important to clarify: among these three mechanisms, the voluntary nature of the certification system is explicitly stipulated in the bill; the hardware phase-out requirement applies only to "certified facilities"; and the codification of the strategic Bitcoin reserve is a provision independent of the certification system. While all three are part of the same legislative package, their legal force and scope of application differ.
From Executive Order to Legislation: The Policy Trajectory
To fully grasp the significance of this bill, it must be viewed within a broader policy timeline.
| Date | Event | Nature & Significance |
|---|---|---|
| 2024 | Trump pledges during his campaign to make the U.S. the "crypto capital of the world" | Policy direction declaration |
| June 2025 | Multiple overseas mining hardware manufacturers announce plans to build factories in the U.S. | Industry response to potential policy shifts |
| End of 2025 | Lummis announces she will not seek re-election, term ends January 2027 | Legislative window clarified |
| March 2026 | Trump signs executive order establishing the Strategic Bitcoin Reserve | Reserve framework set at the executive level |
| March 30, 2026 | Lummis and Cassidy introduce the "Mined in America Act" | Codifies the executive order and adds mining provisions |
The timing of the bill’s introduction is no coincidence. After Trump signed the executive order in March 2026, Lummis moved quickly to convert it into legislation while political momentum remained strong. Given that Lummis’s term ends in January 2027, the window to advance the bill in the current Congress is quite tight.
A notable early indicator: as far back as June 2025, several major mining hardware manufacturers had already announced plans to set up manufacturing or assembly lines in the U.S. These moves are seen as preemptive positioning for potential policy changes, suggesting the industry was already responding to the bill’s hardware localization goals before its formal introduction.
The Hash Rate–Hardware Mismatch
The bill’s core logic is grounded in a set of key data points. Understanding these figures is essential for assessing the bill’s necessity and feasibility.
The U.S. is already the world’s largest hash rate nation. According to Satoshi Action Fund and several industry sources, the U.S. currently controls about 38% of the global Bitcoin network’s hash rate—far ahead of the second-ranked country. This share has steadily increased over recent years, largely due to the migration of hash rate following mining restrictions in certain regions in 2021.
But the hardware supply chain is highly concentrated overseas. The same data shows that about 97% of the miners powering this 38% hash rate come from foreign manufacturers. Industry research further confirms that a handful of Asian companies dominate the global ASIC miner market.
U.S.-listed mining companies are facing profitability pressures and business transformation. In Q1 2026, Bitcoin hash rate experienced its first quarterly decline in six years, dropping about 4%. The main reason is the inversion between mining costs and Bitcoin’s market price—when it costs nearly $90,000 to produce one Bitcoin but spot prices hover around $67,000, profit margins are severely squeezed. In response, several leading public mining companies have announced plans to redirect some of their hash rate to provide computing power for AI firms.
The U.S. government is now the world’s largest sovereign Bitcoin holder. Through years of law enforcement seizures, the Treasury’s Bitcoin holdings are estimated between 198,000 and 328,000 coins. The largest single source was a Department of Justice action involving about 127,000 BTC. Codifying the Strategic Bitcoin Reserve essentially institutionalizes the management of these existing assets.
These facts form the "factual foundation" of the bill. The next step is to distinguish which realities the bill directly addresses, which goals it seeks to achieve, and which secondary effects it may trigger.
Support Arguments and Points of Contention
Debate around the bill in both industry and policy circles has coalesced into two main camps: supporters and skeptics.
Core Arguments from Supporters
Supply chain security narrative. Dennis Porter, CEO of Satoshi Action Fund and a participant in drafting the bill, characterizes the current situation as follows: "The U.S. controls 38% of global Bitcoin hash rate, but 97% of the hardware comes from overseas. That’s not leadership—it’s a potential vulnerability. If we want to lead on Bitcoin, we can’t let critical infrastructure depend on external supply chains." This frames mining hardware alongside semiconductors and telecom equipment as a strategic industry within the supply chain security paradigm.
Economic and employment narrative. Senator Cassidy emphasizes that digital asset mining is a vital part of the U.S. economy and should be conducted domestically. He links mining infrastructure to the growth of AI-driven data centers, arguing that these facilities can anchor blue-collar employment in the U.S.
Policy continuity narrative. Executive orders can be unilaterally revoked by the next president, but laws passed by Congress require legislative action to overturn. Codifying the Strategic Bitcoin Reserve raises the cost of policy reversal.
Core Concerns from Skeptics
Doubts about the real impact of the "exclusion clause." One unresolved question is: if foreign mining hardware manufacturers set up factories in the U.S., will their equipment still be considered "foreign-affiliated products"? Should the standard be based on company registration, actual production location, or the ultimate source of the chips? If overseas companies’ U.S. factories can circumvent the restrictions, the clause’s effectiveness will be undermined.
Uncertain incentives for voluntary certification. The bill does not create new federal spending, only allows certified mining facilities to access existing energy and rural development programs. Are these subsidies sufficient to cover hardware replacement costs? For mining companies already under profitability pressure, the economics may be the deciding factor.
Tight legislative window. Lummis will leave office in January 2027, and the bill must pass through committee review and votes in both chambers. Completing the legislative process in the current Congress is a significant challenge.
Three Narratives That Require Careful Evaluation
Several widely cited narratives have emerged around the bill. Here, we examine three key assertions from factual and logical perspectives.
"97% of U.S. miners come from overseas, creating a supply chain security risk."
Factually, the 97% concentration figure is cited by industry groups and cross-verified by multiple media outlets. However, "creates a supply chain security risk" moves from fact to judgment. It’s important to distinguish: high supply chain concentration does pose risks, but the nature of those risks depends on two variables—first, whether overseas manufacturers have the technical ability to remotely control or sabotage equipment; second, whether the U.S. has viable alternatives. To date, there’s no public evidence of known security backdoors in mainstream mining equipment. Thus, the strength of this assertion depends on the gap between "possibility" and "evidence."
"The bill will force U.S. miners to abandon foreign hardware."
The bill explicitly uses "voluntary certification" and requires "certified facilities to transition gradually." Mining facilities that do not seek certification are not restricted in their hardware sourcing. Therefore, "force" is inaccurate. A more precise description is: the bill seeks to encourage mining facilities to proactively switch supply chains through positive incentives (access to federal programs), rather than outright banning foreign hardware.
"The Strategic Bitcoin Reserve will make the U.S. government the largest Bitcoin buyer."
The bill itself does not authorize the Treasury to purchase Bitcoin on the open market. Reserve funding is still limited to assets seized through law enforcement. Lummis previously proposed expanding the reserve in a "budget-neutral" way—such as converting staking yields from other crypto assets into Bitcoin purchases, or allowing certified miners to sell newly mined Bitcoin to the government at a discount in exchange for capital gains tax exemptions. However, these provisions are not clearly included in this bill. Thus, the "largest buyer" claim currently lacks legal basis.
Industry Impact Analysis: Mining, Reserves, and Supply Chain Transmission
If enacted, the bill could have structural effects on the crypto industry in three main areas.
Impact on the Mining Landscape
Geographic concentration of hash rate may further shift toward the U.S. Although certification is voluntary, access to federal energy subsidies could be a substantial draw for mining operations with thin margins. This may incentivize more international miners to relocate hash rate to the U.S. to benefit from policy incentives.
Divergence in miners’ cost structures. Mining operations able to achieve certification and switch to domestic hardware may receive subsidies and policy support. Those unable to meet certification standards will continue relying on foreign hardware without subsidies. This divergence could accelerate industry consolidation, squeezing out smaller miners.
Intersection of AI compute transformation and mining policy. U.S.-listed mining companies are rapidly pivoting to AI compute hosting, and the bill’s certification system essentially creates a federal compliance framework for "mining facility + data center" hybrid models. This could become a policy bridge between traditional mining and emerging AI infrastructure.
Impact on the Strategic Bitcoin Reserve
Legal stability of the reserve is significantly enhanced. Once upgraded from executive order to law, any future move to dissolve the reserve or sell its Bitcoin would require Congressional action, not just a unilateral executive order. This provides institutional protection for Bitcoin as a sovereign reserve asset.
Pathways for reserve growth remain unclear. The bill currently only formalizes the retention of existing seized assets, without establishing a systematic mechanism for incremental acquisition. Any future move to authorize open market purchases would face greater budgetary and political hurdles.
Impact on the Hardware Supply Chain
Potential to spur domestic manufacturing capacity in the medium to long term. The bill tasks NIST and MEP with supporting domestic miner R&D. While it’s unlikely to disrupt overseas manufacturers’ technical dominance in the short term, it could create a policy window for U.S. startups.
Foreign manufacturers’ U.S. strategies face adjustments. For overseas companies that have already set up U.S. factories, if "domestically produced but foreign-owned" equipment is excluded from certification, the value of these investments will be diminished. Manufacturers may need to further localize their corporate structures or technology licensing models.
Multi-Scenario Evolution Forecast
Depending on legislative progress and industry response, three possible scenarios can be projected.
| Scenario | Trigger Conditions | Industry Impact |
|---|---|---|
| Baseline: Bill passes, but certification uptake is limited | Bill passes in current Congress, but federal subsidies aren’t enough to offset hardware replacement costs, so most miners opt out of certification | Strategic Bitcoin Reserve gains legal protection, but little change in mining hardware landscape; certification becomes a niche option |
| Optimistic: Bill passes with high certification uptake | Subsidies exceed expectations or hardware replacement costs fall due to domestic manufacturing, prompting widespread certification | U.S. mining hardware supply chain gradually localizes; foreign manufacturers lose U.S. market share; hash rate further concentrates in the U.S. |
| Pessimistic: Bill fails to pass in current Congress | Legislative window closes, Lummis departs with no strong successor, or Senate vote fails | Strategic Bitcoin Reserve remains at executive order level; mining policy status quo persists; future administrations may alter reserve policy by executive order |
Of these, the baseline scenario is most likely. Reasons include a tight legislative window, uncertain strength of voluntary certification incentives, and the possibility that overseas manufacturers can partially circumvent restrictions by producing in the U.S.
Conclusion
The "Mined in America Act" marks a new phase in U.S. crypto policy, shifting from "whether to embrace the industry" to "how to control the industry." By linking mining hardware supply chains, geographic hash rate distribution, and the Bitcoin reserve system within a single policy framework, the bill reflects Washington’s evolving view of crypto—not as a fringe financial phenomenon, but as a component of national infrastructure and supply chain security.
However, the bill’s real-world impact will depend on multiple variables: the precision of subsidy design, the implementation details of hardware sourcing standards, foreign manufacturers’ U.S. strategies, and political maneuvering within the legislative window. Regardless of the bill’s ultimate fate, the "hash rate in America, hardware abroad" mismatch has now been clearly identified as an issue requiring attention and resolution. This recognition alone may have more lasting influence than the bill’s final outcome.
