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Client Alert

Recent Trends in Wire Fraud Scams: Uncovering and Tackling the Latest Tactics in Hong Kong

June 6, 2023

by Janet Wong

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Wire fraud threats have been on the rise in recent years, with Hong Kong becoming a particularly attractive destination for fraudsters due to its status as a global financial hub. Criminals are using increasingly sophisticated tactics, including fake email addresses and websites, to carry out email wire fraud scams and trick individuals and businesses into wiring funds to unauthorized recipients.

According to the Hong Kong Police Force (HKPF) press conference held on February 14, 2023, there was a significant increase of 45.1% in deception cases in 2022, with the total number rising to 27,923. Over 70% of these cases were internet-related. The primary drivers behind this increase were online shopping scams (8,735 cases), employment fraud (2,996 cases), investment fraud (2,850 cases), and telephone deception (2,831 cases), with increases ranging from 40% to 1.8 folds. The large amounts involved in investment fraud and telephone deception, which exceeded HK$1.8 billion and HK$1 billion respectively, remained a cause for concern.1

Newer Types of Wire Fraud Scams

As the digital landscape continues to evolve, fraudsters are not only adapting their tactics but also devising new methods of exploitation. While traditional types of fraud, such as CEO scams and Business Email Compromise (BEC) scams, persist, criminals are increasingly focusing on emerging technologies and trends to perpetrate innovative forms of wire fraud. By staying aware of these evolving threats, individuals and businesses can better protect themselves from falling victim to these sophisticated schemes. Some of the newer types of scams include:

  1. Cryptocurrency and NFT investment scams: Taking advantage of the rising popularity of digital assets like cryptocurrencies and non-fungible tokens (NFTs), scammers are enticing victims with false promises of high returns on investments. They employ tactics such as creating fake websites, social media accounts, and online investment platforms to make their schemes appear legitimate.
  2. Personal data fraud: This type of fraud encompasses a wide range of illicit activities involving stolen personal data, including fraudulent bank transfers, identity theft or impersonation, and phishing scams where individuals are tricked into providing personal data to fraudulent websites or emails. Scammers may also use unlawfully obtained personal data to commit financial or other types of crime.
  3. Online shopping scams: With the rise of e-commerce, online shopping scams are becoming increasingly common. Fraudsters typically create fake websites or online marketplaces, offering high-demand or luxury items at significantly discounted prices. Once the victim makes a payment, the scammers either fail to deliver the promised goods or send counterfeit or inferior products.
  4. COVID-19 related scams: The ongoing pandemic has given rise to a new wave of scams, such as fake vaccination appointments, bogus online sales of personal protective equipment (PPE), and fraudulent COVID-19 testing services. Scammers exploit the public’s fear and uncertainty surrounding the pandemic to defraud unsuspecting victims.

Hong Kong Wire Fraud Updates

Hong Kong has taken several measures to combat wire fraud scams in recent years:

  1. Establishment of the Anti-Deception Coordination Centre (ADCC): Established in 2017, the ADCC is a cross-departmental unit that coordinates efforts to combat wire fraud in Hong Kong. The ADCC works closely with law enforcement agencies, financial institutions, and other organizations to raise awareness of fraud risks and to improve the detection and prevention of fraudulent activities. In 2022, the ADCC has significantly contributed to the fight against wire fraud scams by intercepting over HK$1.3 billion of payments, preventing victims in over 500 deception cases from wiring money to fraudsters. Additionally, the HKPF had intensified intelligence-led operations, leading to the neutralization of multiple deception syndicates and the arrest of about 1,300 individuals involved in such activities. As part of these efforts, the HKPF successfully carried out Operation UPSHORE, which resulted in the detection of 410 telephone deception cases, the arrest of 205 persons, and the interception of over HK$20 million of involved assets.2 The ADCC’s continuous efforts and collaboration with other agencies have significantly contributed to the reduction of wire fraud scams in Hong Kong.
  2. Letter of No Consent issued by HKPF: Under the “No Consent Regime,” the HKPF can issue a Letter of No Consent (LNC) to banks to informally freeze bank accounts with suspected fraudulent transfers before formal restraint orders on those bank accounts are applied for and obtained from the Court. The minimum threshold for the HKPF to issue an LNC in cases of suspected fraudulent transfer is HK$100,000 (approximately US$12,820).

    In late 2021, Hong Kong Court of First Instance issued its judgment in Tam Sze Leung & Ors. v. Commissioner of Police [2021] HKCFI 3118, which found the longstanding practice of using LNCs to be unlawful for being ultra vires the Organized & Serious Crime Ordinance (Cap. 455, Laws of Hong Kong), not being prescribed by law, and being a disproportionate interference with the fundamental right to use property under Article 105 of the Basic Law.

    On April 14, 2023, the Hong Kong Court of Appeal reversed the Court of First Instance decision and upheld the constitutionality of the “No Consent Regime” in its judgment in Tam Sze Leung & Ors. v. Commissioner of Police [2023] HKCA 537. This appeal decision is undoubtedly good news for the victims of cyber fraud, who often require an early issuance of an LNC to preserve potential proceeds of crime within a race against time.

    Nevertheless, it is important to note that the HKPF only issue LNCs to freeze bank accounts temporarily and the LNCs are usually reviewed regularly and should normally not last for too long. On the other hand, banks are required to act in accordance with its own assessment and generally do not freeze a bank account for very long against a customer’s wishes without a court order. To be safe, the HKPF generally recommend that a victim bring urgent civil proceedings in Hong Kong Courts against the persons holding or having an interest in the funds sought to be recovered, for example, by seeking an urgent ex-parte injunction order to freeze the bank account to ensure that the funds can no longer be accessed by the fraudsters.

  3. Personal Data (Privacy) Commissioner (PDPC): The PDPC has taken various initiatives to protect personal data, including organizing webinars to educate the public and organizations about their rights and responsibilities under the Personal Data (Privacy) Ordinance (Cap. 486, Laws of Hong Kong).The PDPC also works closely with other regulatory bodies and law enforcement agencies to combat personal data fraud and other forms of cybercrime. They collaborate on investigations and share intelligence to identify and prosecute those who engage in illegal activities related to personal data.
  4. Launch of “Scameter+” mobile app: In February 2023, the HKPF introduced the “Scameter+” mobile app as an extension of the Scameter search engine to help the public identify potential frauds and online pitfalls. The app allows users to quickly assess the risk of fraud by entering platform account names or numbers, payment accounts, phone numbers, email addresses, or URLs. Scameter+ also provides scam prevention advice, real-time push notifications, and enables users to view and share anti-scam information. The data in the Scameter series come from various sources, including public reports to the HKPF, information provided by organizations, suspicious phone number databases, and real-time analysis from information security companies. By making this tool easily accessible on mobile devices, the HKPF aims to increase public awareness and empower individuals to protect themselves against potential wire fraud scams. Please visit the Scameter website to download the “Scameter+” App:https://cyberdefender.hk/en-us/scameter/.

Practical Tips and Key Takeaways

The rising trend of wire fraud in Hong Kong and the increasingly sophisticated tactics employed by fraudsters underline the importance of staying vigilant and well-informed about fraud prevention. Individuals and businesses should be aware of the different types of fraud and take necessary precautions to protect themselves against scams.

Here are some practical tips and takeaways for individuals and businesses:

  1. Be proactive in fraud prevention: Implement robust security measures, such as two-factor authentication and employee training, to minimize the risk of falling victim to wire fraud scams. Stay informed about the latest fraud tactics and trends.
  2. Act quickly: If you suspect wire fraud, immediately contact your bank to report the incident and request a hold on the transaction or a recall of the funds. Time is of the essence in these situations, as acting quickly can significantly increase your chances of recovering your funds.
  3. Contact a lawyer: Engage a trusted lawyer or solicitor with experience in fraud recovery cases as soon as possible. They can help you navigate the complex legal landscape, file a report with the HKPF, and initiate civil proceedings to recover your funds.
  4. Understand your legal options: A knowledgeable wire fraud lawyer can guide you through the available legal avenues for tracing and recovering your funds. These may include applying for injunction orders, disclosure orders, or utilizing discovery tools such as the Norwich Pharmacal application and applications under Section 21 of the Evidence Ordinance (Cap. 8, Laws of Hong Kong).
  5. Collaborate with law enforcement: Cooperate with the HKPF and other relevant agencies to share information and assist in their investigations. This collaboration can help to identify and prosecute the fraudsters, ultimately contributing to the fight against wire fraud.
  6. Purchase cybercrime insurance: Cybercrime insurance can provide coverage for financial losses resulting from wire fraud, data breaches, and other cyber-related incidents. It may cover expenses such as legal fees, investigation costs, public relations efforts, notification expenses, and regulatory fines. Ensure that you work with a knowledgeable insurance agent or broker to customize your policy to meet your specific needs and guarantee adequate coverage against various cyber risks.
  7. Stay vigilant: Even after recovering your funds, it is essential to maintain vigilance and continuously update your security measures to safeguard against future threats. Regularly review your internal processes and procedures, and train your employees on how to recognize and respond to possible fraud attempts.

By staying informed and proactive in the fight against wire fraud, individuals and businesses can better protect their assets and contribute to a safer and more secure financial environment in Hong Kong. In light of the potential threats, it is advisable to seek legal guidance from a lawyer experienced in dealing with wire fraud cases. Our wire fraud lawyers in Hong Kong are ready to assist you in navigating these complex issues and providing expert advice tailored to your specific needs.

To learn more about email wire fraud and business email scams, we recommend reading our in-depth guide on protecting against such scams and recovering funds wired to Hong Kong. Our experienced Hong Kong and U.S. wire fraud lawyers have handled numerous cross-border wire fraud cases and are well-equipped to provide expert assistance and guidance. Please visit our International Cyber Crime and Asset Recovery page. 

Our specific articles include:

Contact one of our wire fraud lawyers for further assistance and guidance in tackling cross-border wire fraud cases.

Janet Wong, Partner

Steve Nelson, Senior Partner

Joshua Colangelo-Bryan, Of Counsel



1See https://www.police.gov.hk/ppp_en/01_about_us/cp_ye.html

2See https://www.info.gov.hk/gia/general/202302/14/P2023021400644.htm

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The Supreme Court Update - October 8, 2026

On September 29, 2026, the Supreme Court granted certiorari in one case: Department of Homeland Security v. D.V.D., No. 26-426: This case concerns the Trump Administration’s “third-country removal” procedures, where immigrants are deported to countries not listed in the removal orders. In granting certiorari, the Court granted the Government’s application to stay a lower court decision halting the practice, which will allow third-country removals to continue pending resolution of the case. The issues presented are: (1) Whether the district court had jurisdiction over respondents’ claims; (2) whether the district court had authority to enter class-wide declaratory relief and APA vacatur under 8 U.S.C. § 1252(f)(1); (3) whether the Government’s guidance on third-country removals is unlawful under 8 U.S.C. § 1231(b), the due process clause, or FARRA/CAT and its implementing regulations; and (4) such other questions that the Government determines are appropriate for the proper disposition of the case. On October 1, 2026, the Court granted certiorari in three additional cases: Rhoney v. Barbosa da Cunha, No. 26-104: Immigration officials detained Ricardo Aparecido Barbosa da Cunha—a Brazilian citizen who had lived in the United States for approximately twenty years after entering without inspection—and denied him a bond hearing under 8 U.S.C. § 1225(b)(2)(A). The Second Circuit held that his detention was instead governed by § 1226(a), which permits release on bond, because § 1225(b)(2)(A)’s mandatory-detention requirement applies only to noncitizens apprehended while entering the country or shortly thereafter. The question presented is: Whether 8 U.S.C. § 1225(b)(2)(A) mandates the detention pending removal proceedings of aliens who, like Barbosa da Cunha, are present in the United States without having been admitted. Missionaries of St. John the Baptist, Inc. v. Frederic, No. 25-113: A Catholic religious organization sought to build a shrine to the Virgin Mary on land the organization owned adjacent to its church in Park Hills, Kentucky. Local zoning restrictions prohibited the proposed construction. The question presented is: Whether a land-use regulation that prohibits a religious institution from building a religious structure on its own property constitutes a “substantial burden” on religious exercise under the Substantial Burden Provision of the Religious Land Use and Institutionalized Persons Act, 42 U.S.C. § 2000cc(a). Marschner v. Marschner, No. 25-1349: Under the Uniformed Services Former Spouses’ Protection Act (“USFSPA”), a veteran’s longevity-based retirement pay can be divided in a divorce, but retirement pay based on disability and retirement pay that was waived to receive disability pay are indivisible. The question presented is: Does the USFSPA require state courts to refuse enforcement of indemnification provisions in a divorce settlement agreement?

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SEC Proposes Expansion of Investment Adviser Performance-Based Compensation Rule

On September 30, 2026, the Securities and Exchange Commission (the “SEC”) proposed amendments to Rule 205-3 under the Investment Advisers Act of 1940, as amended (the “Advisers Act”), which provides an exemption from the general prohibition under Section 205(a)(1) of the Advisers Act on registered investment advisers receiving performance-based compensation (the “Proposal”) so long as performance-based compensation is limited to “qualified clients”.1 Most notably for private fund sponsors, the Proposal would expand the definition of “qualified client” to include any investors that satisfy the “accredited investor” definition under Regulation D. The Proposal may also have implications for private fund managers that rely on exemptions from investment adviser registration under state law because certain state-level investment adviser registration exemptions incorporate or otherwise reference the federal qualified client definition. Expansion of the Qualified Client Definition Under the current Rule 205-3, an investor generally may qualify as a qualified client if, among other alternatives, the investor has at least $1.4 million under management with the adviser or has a net worth exceeding $2.7 million. These thresholds are higher than the financial thresholds applicable to many accredited investors under Regulation D. As a result, an investor may currently qualify as an accredited investor for purposes of investing in a private offering without qualifying as a qualified client for purposes of paying performance-based compensation. The Proposal would expand the qualified client definition to include any natural person or legal entity investor that satisfies the accredited investor definition under Regulation D. The Proposal would also remove the assets under management and net worth thresholds under the current Rule 205-3 qualified client test. For private funds relying on Section 3(c)(1) of the Investment Company Act of 1940, this change could reduce the need to apply a separate qualified client standard to investors that already qualify as accredited investors. Dorsey Observations and Next Steps If adopted as proposed, the expanded qualified client definition could be particularly significant for private fund managers. Most private fund offerings are already limited to accredited investors under Regulation D. However, the Proposal could expand the pool of prospective investors available to emerging private fund managers while reducing the regulatory burden associated with complying with Rule 205-3. The Proposal could also benefit advisers operating below the SEC registration threshold that rely on a state private fund adviser exemption. A number of states have adopted exemptions modeled on the North American Securities Administrators Association (“NASAA”) private fund adviser exemption, which may condition relief for advisers to certain funds relying on Section 3(c)(1) on each beneficial owner satisfying the federal qualified client definition. However, state requirements vary, and any effect of the Proposal would depend on the text of the applicable state exemption and how it incorporates Rule 205-3. Many emerging private fund managers may have a larger network of accredited investor relationships than qualified client relationships during the early stages of their investment advisory business. Currently, under Rule 205-3, private fund managers may receive performance-based compensation from investors who do not satisfy the qualified client definition if those investors were admitted to their private funds prior to registration with the SEC. Following registration with the SEC, however, managers may continue to permit investors that are not qualified clients to invest in future private funds but may not receive performance-based compensation from those investors with respect to such investments. In addition, because the net worth and assets under management thresholds for qualified client status are adjusted for inflation every five years, the pool of qualified client investors may diminish over time as previously eligible investors no longer satisfy the applicable thresholds. The Proposal could provide the dual benefit of greater flexibility for private fund managers to establish and maintain relationships with accredited investors as their businesses scale and they become registered with the SEC, and greater flexibility for certain accredited investors to participate in investment strategies that historically have been restricted to much larger institutional investors. Unless and until the Proposal is adopted, investment advisers should continue to comply with the existing qualified client requirements. If the Proposal is adopted, private fund sponsors should consider whether corresponding changes are appropriate for their subscription documents, investor questionnaires, and other offering materials. Advisers that are state-registered or rely on a state-level exemption should also consult the laws and regulations of each relevant jurisdiction before changing investor eligibility standards or performance-based compensation practices, because adoption of the federal amendments may not automatically modify state requirements. Comments on the Proposal will be due 60 days after publication in the Federal Register. 1 Investment Adviser Performance-Based Compensation Modernization, Investment Advisers Act Release No. IA-7022 (Sept. 30, 2026), available at https://www.sec.gov/rules-regulations/2026/09/s7-2026-28#33-11443proposed.

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Energy Law: Month in Review - September 2026

Welcome to Dorsey’s Energy Law: Month in Review. We provide this update to our clients to identify significant developments in the previous month. Please reach out to any of the authors, listed above, to discuss these issues. Regulatory Developments Massachusetts Ratchets Up State and Local Regulation of AI Data Centers In early September, Governor Maura Healey of Massachusetts signed an executive order requiring that artificial intelligence data centers secure the approval of local communities as a precondition to proceeding with a given project. According to the terms of the order, data center developers will need to secure a “community benefits agreement” as a precondition to receiving permits from numerous state agencies, including the Department of Environmental Protection, the Energy Facilities Siting Board, and the Massachusetts Environmental Policy Act Office. Beyond requiring community benefits agreements, the order also mandates that developers mitigate utility costs to consumers, prohibits the use of nondisclosure agreements, and requires various state agencies to develop measures to limit data center impacts on the environment. North Carolina Regulators Decline Approval of Duke Energy Gas Turbine On September 18, 2026, North Carolina Utilities Commission (NCUC) denied Duke Energy’s application for a certificate of public convenience and necessity required to construct a gas-fueled combustion turbine at its Smith Energy Complex in North Carolina. The NCUC objected strongly to the $584 million price tag and noted that Duke appeared to be constructing the facility “based on anticipated data center customer additions.” The NCUC rejected that anticipated growth as “insufficiently reliable for the Commission to act at this point.” In rejecting Duke’s application, the NCUC also noted that Duke had signed the White House Ratepayer Protection Pledge, in which it represented that it would not shift data center costs to consumers. The NCUC observed that the record did not demonstrate how Duke “intends to adhere to its commitments under the Ratepayer Protection Pledge with regard to the Proposed Facility.” Notably, commission staff had actually supported the construction of the turbine, citing concerns about Duke’s reserve margins. The NCUC noted that it “understands the Public Staff’s expressed concerns,” but those concerns were outweighed by the NCUC’s reservations, including questions of demand. Department of Energy Approves Funds for Grid Improvement The U.S. Department of Energy (DOE) recently announced that it would fund 31 grid-improvement projects in 26 states. The funding initiative is part of the DOE’s “SPARK” initiative. The funding will include $1.9 billion in federal funding from DOE and $3.35 billion in recipient cost-sharing funding. The funds will go to projects designed to improve grid reliability and lower electricity costs. Recipients plan to reconductor over 1,500 miles of transmission lines and will deploy grid-enhancing technologies across approximately 21,000 miles. DOE stated that this initiative will make available over 23 additional gigawatts of electricity. Texas Moderates Rules Governing Data Center Interconnection The Texas Public Utility Commission adopted new regulations governing large-load interconnections. The rules impose a flat study fee of $100,000 for all proposed interconnections, which departs from the initial proposal to impose study fees using a tiered system based on project size. Additionally, the final rule eliminates the PUC’s previous proposal to impose a non-refundable interconnection fee of $50,000 per MW of contracted peak demand. The final rule also moderates the initially proposed regulations governing Electric Reliability Council of Texas (ERCOT) notifications for large-load customers’ non-utilized capacity. The proposed rules would have required notifying ERCOT within 30 days of missing a scheduled energization milestone by six months. The final rules, however, do not require informing ERCOT unless a scheduled energization milestone is missed by 24 months. FERC Denies TransAlta 202(c) Cost-Recovery Plan The Federal Energy Regulatory Commission (FERC) recently rejected TransAlta’s plan to recover $19.9 million in expenses stemming from a DOE order in which DOE prohibited TransAlta from retiring its coal-powered Centralia power plant. TransAlta had previously intended to retire the facility at the end of 2025. TransAlta’s cost recovery plan proposed spending an additional $23 million on repairs to continue operating the unit. FERC’s main objection had to do with geographic scope. TransAlta’s recovery plan called for recovering costs from California Independent System Operator (CAISO) and the Southwest Power Pool (SPP), but the DOE’s order requiring operation of the plant was designed to ensure reliability in the Northwest assessment area (Montana, Oregon, Washington, and parts of northern California and northern Idaho). Accordingly, FERC was unwilling to allow cost recovery from CAISO and SPP when the order that precipitated the additional costs only related to the Northwest assessment area. FERC informed TransAlta that it would only approve cost recovery from load-serving entities in the Northwest assessment area. FERC’s decision comes amid a rush of DOE emergency orders requiring the continued operation of coal-fired generating units. Litigation Appeals Court Upholds Washington Hydropower Plant With Caveats In a September 21, 2026, opinion, the Washington Court of Appeals largely upheld a Clean Water Act water quality certification by the Washington Department of Ecology for the Goldendale Energy Storage Project, a proposed pumped-water storage hydropower system adjacent to, but off-stream from, the Columbia River. A nonprofit (Columbia Riverkeeper) and the Confederated Tribes and Bands of the Yakama Nation appealed the certification, contending that it failed to impose necessary conditions and monitoring requirements to protect the water quality of the Columbia River. Most saliently, the plaintiffs argued that the project had the potential to leak 100 acre-feet of water per year into tributaries of the Columbia River. The Court of Appeals broadly rejected plaintiffs’ challenge to the state’s conclusion that “the project was designed not to leak.” That said, the Court of Appeals did reverse on one narrow issue. Specifically, the court determined that the state’s conclusion that “leakage from the project’s tunnels would be monitored and reported” was not supported by the evidence because the certification “does not explicitly require monitoring and reporting to determine whether there is any leakage.” Accordingly, the court remanded the matter to the state to impose monitoring and reporting requirements but otherwise affirmed the certification. Legislative Developments California Legislates Restrictions on Data Center Energy Use and Grid Costs On September 21, 2026, California Governor Gavin Newsom signed seven bills broadly regulating data centers in the state. SB 1168 directed the California Public Utilities Commission to assess the energy used by data centers. It also requires the PUC to pass costs of transmission and distribution upgrades and load increases on to data centers, rather than customers. SB 886 and SB 887 compel data centers to pay for infrastructure upgrade and generation costs, and wildfire mitigation costs, in addition to imposing environmental review. The statutes additionally increase local oversight of data centers. AB 1577 imposes a monthly reporting requirement that requires data centers to supply energy consumption and efficiency data to the California Energy Commission. AB 2383 contains incentives for data centers to use onsite clean energy generation. Finally, AB 2469 and AB 2619 require data center developments to assess water supply and develop a water scarcity plan. The statutes also mandate statewide water reporting as a precondition to obtaining and renewing business licenses.

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EPA Limits Title V Re-Litigation of NSR Permits

Overview On September 25, 2026, the U.S. Environmental Protection Agency (“EPA”) published a final rule that significantly limits the ability of third parties to use the Clean Air Act (“CAA”) Title V permitting process to revisit New Source Review (“NSR”) permitting decisions years after those decisions were made. The rule establishes that NSR permitting determinations generally must be challenged during the original permitting proceeding, thereby providing regulated sources with greater permitting certainty and finality for major capital projects. Published in the Federal Register titled Clarifying the Scope of “Applicable Requirements” Under State Operating Permit Programs and the Federal Operating Permit Program (Docket ID No. EPA-HQ-OAR-2023-0401), the rule amends 40 C.F.R. Parts 70 and 71 to codify EPA’s interpretation regarding when requirements established under other CAA programs may be reviewed, modified, or implemented through the Title V operating permit program. The rule becomes effective 30 days after publication. The rule addresses two principal issues: (1) the relationship between NSR preconstruction permitting and Title V operating permits, and (2) the treatment of the General Duty Clause under CAA section 112(r)(1). Most significantly, the rule provides greater certainty for sources navigating the NSR permitting process. EPA’s amendments are intended to ensure that NSR permitting decisions made through an approved public process are generally not revisited later through Title V permit proceedings. The rule responds to a circuit split between the U.S. Courts of Appeals for the Fifth and Tenth Circuits. In Environmental Integrity Project v. EPA, 969 F.3d 529 (5th Cir. 2020), the Fifth Circuit upheld EPA’s interpretation, concluding that it was consistent with the text, structure, and purpose of Title V. In contrast, the Tenth Circuit reached the opposite conclusion in Sierra Club v. EPA, 964 F.3d 882 (10th Cir. 2020), finding that the then-existing regulatory definition of “applicable requirement” did not support EPA’s position. By amending the regulatory language on which the Tenth Circuit relied and codifying the interpretation approved by the Fifth Circuit, EPA has established a nationwide framework governing the interaction between NSR and Title V. NSR and Title V: EPA Establishes a Uniform Nationwide Framework At the core of the rule is EPA’s effort to define the respective roles of NSR and Title V. The rule codifies the approach EPA has applied since 2017: once a source obtains an NSR permit under an EPA-approved permitting program, and that permit was issued following public notice with an opportunity for comment and judicial review, the permit establishes the NSR-related “applicable requirements” of the State Implementation Plan (“SIP”) or Federal Implementation Plan (“FIP”) for Title V purposes. Under this framework, Title V is not a vehicle for re-examining underlying NSR permitting decisions. EPA does not intend to use the Title V process to revisit applicability determinations, emissions calculations, control technology determinations, permit conditions, or other issues resolved through the NSR permitting process. This principle applies regardless of the stage of the Title V proceeding; whether the NSR permit was issued pursuant to a SIP or FIP; the type of NSR issue involved; or whether the NSR permit is incorporated into Title V sequentially or concurrently. Limited Exceptions EPA recognizes several circumstances in which NSR issues may still be reviewed through the Title V program: No NSR permit was issued at all; The permit was issued without public notice and an opportunity for comment and judicial review; or The issue involves substantive overlap between Title V and NSR requirements, such as the adequacy of monitoring provisions. As a result, the rule does not insulate unpermitted projects or foreclose review of matters that independently arise under Title V. Key Regulatory Amendments The rule revises the definition of “applicable requirement” in 40 C.F.R. §§ 70.2 and 71.2. Paragraph (1): Where an NSR permit is issued with public notice and an opportunity for comment and judicial review, the permit establishes and defines the applicable SIP or FIP requirements for Title V purposes. Paragraph (2): All NSR permit terms, including terms contained in minor NSR permits, constitute applicable requirements that must be incorporated into Title V permits. Paragraph (4): CAA section 112(r)(1) (the General Duty Clause) is expressly excluded from the definition of “applicable requirement,” while section 112(r)(7) Risk Management Program requirements remain included. EPA also amended 40 C.F.R. §§ 70.8 and 70.12 to clarify that alleged defects in requirements established outside the Title V process generally do not provide a basis for EPA objection to a Title V permit or for a Title V citizen petition. General Duty Clause Exclusion The rule also codifies EPA’s longstanding position that the General Duty Clause in CAA section 112(r)(1) is not an “applicable requirement” for Title V purposes. EPA points to several considerations supporting that conclusion, including the distinction between the General Duty Clause and Title V permit terms, the provision’s origins in the Occupational Safety and Health Act’s general duty clause, and the different enforcement structures applicable to the General Duty Clause and Title V permit requirements. Importantly, excluding section 112(r)(1) from the definition of “applicable requirement” does not eliminate EPA’s authority to enforce the General Duty Clause independently of the Title V program. The final rule instead clarifies that the General Duty Clause need not—and should not—be incorporated into Title V permits as an applicable requirement. Practical Implications for Regulated Sources Greater Finality for NSR Permits  For projects requiring PSD, nonattainment NSR, or minor NSR permits, the permitting process becomes the primary forum for resolving disputes regarding applicability determinations, emissions calculations, control technology requirements, offsets, and permit conditions. Once an NSR permit is issued through a qualifying public process, regulated sources should face substantially reduced risk that those same issues will be challenged years later through Title V permit proceedings. Reduced Risk of Collateral Permit Challenges Stakeholders have sometimes sought to use Title V permit issuance, renewal, revision, or citizen-petition proceedings to challenge underlying NSR determinations. The final rule makes clear that Title V is not the appropriate vehicle for challenging whether an applicable requirement was correctly established in the first instance. This should reduce the risk of permit delays and uncertainty associated with collateral challenges to previously issued NSR permits. The rule does not, however, eliminate all Title V challenges relating to an NSR permit. Challenges concerning the Title V permit itself—including whether it appropriately incorporates applicable requirements or contains adequate compliance provisions—remain possible. Increased Importance of the Initial NSR Proceeding Because Title V generally will not provide a second opportunity to challenge the substantive validity of an NSR determination, the administrative record developed during the NSR process becomes increasingly important. Permit applicants should ensure that applicability analyses, emissions calculations, control technology evaluations, modeling demonstrations, and supporting technical documentation are thoroughly developed during the original permitting proceeding. For significant projects, applicants may therefore have an additional incentive to identify and resolve potential permitting issues before the NSR permit is issued rather than assuming that unresolved issues can be addressed during a subsequent Title V proceeding. Potential Incentive for Broader Public Participation EPA also notes that permitting authorities may choose to provide public notice and an opportunity for comment for a broader range of NSR permits because permits issued through a qualifying public process receive the benefit of the finality framework established by the rule. Some permitting authorities may conclude that greater public participation at the NSR stage is preferable to uncertainty during subsequent Title V proceedings. Conclusion The final rule is principally a permitting-certainty measure. For sources that obtain NSR permits through a public process, EPA has substantially limited the ability of third parties to revisit underlying NSR determinations through the Title V program. As a result, regulated entities should benefit from greater finality regarding key permitting decisions, reduced risk of collateral permit challenges, and increased certainty when planning and implementing capital projects.