US subsea cable policy

The FCC's Subsea Cable Overhaul: Getting Security Right Without Breaking the Internet's Backbone

America's first major rewrite of undersea cable rules in two decades targets adversary risk — but proportionality will determine whether it strengthens or strangles trans-Pacific capacity.

Rewiring the Rules of the Undersea Internet People of Internet Research · US ~99% Intercontinental traffic on cables Submarine cables carry the overwhe… 20+ Years since last overhaul First comprehensive rewrite of US … 2 Chinese carriers losing US authority China Telecom and China Mobile hav… 2x+ Trans-Pacific demand growth Capacity demand continues to grow … peopleofinternet.com

Key Takeaways

Roughly 99% of intercontinental internet traffic moves through submarine cables — a fact that, until recently, was a piece of trivia rather than a Beltway preoccupation. That has changed. The Federal Communications Commission's submarine cable rulemaking, opened in November 2024 as the first comprehensive overhaul of the Cable Landing License framework in over twenty years, has continued advancing through 2025 and into 2026, and is now poised to reshape how cables connecting the United States to the rest of the world are licensed, built, owned, and renewed.

The proceeding, coordinated with the interagency Team Telecom (formally the Committee for the Assessment of Foreign Participation in the United States Telecommunications Services Sector), reflects a real and growing set of concerns: physical sabotage risks highlighted by recent Baltic Sea cable cuts, surveillance exposure on cables landing in or transiting adversary jurisdictions, and the heavy concentration of trans-Pacific capacity in the hands of a small number of operators. The Commission's proposed restrictions on ownership stakes, equipment, and landing-station connections involving entities tied to foreign adversaries — most prominently Chinese state-linked carriers like China Telecom and China Mobile, both of which have already had their domestic Section 214 authorizations revoked — are a logical extension of policy the US has been edging toward for years.

What the rulemaking actually does

The Notice of Proposed Rulemaking and follow-on items, adopted by the Commission and detailed in its public docket, propose several substantive changes:

None of this is, in isolation, unreasonable. The previous regime — built around one-time licenses and case-by-case national security review — was designed for a world in which cable consortia were dominated by Western incumbents and the dominant policy concern was tariff classification, not geopolitical contestation.

Where the risk is real

It is worth being honest about what has changed. Several recent cable projects originally planned to land in Hong Kong were rerouted after Team Telecom objections, including Google and Meta's Pacific Light Cable Network, which was ultimately allowed to proceed only with its Hong Kong landing dropped. Reports from industry analysts and outlets such as Reuters and the Financial Times have documented sustained pressure on consortia to exclude HMN Tech (the former Huawei Marine) from sensitive routes. Suspected sabotage of cables in the Baltic and around Taiwan has elevated physical resilience from a niche engineering concern to a board-level question.

A modernized framework that bakes these realities into licensing — rather than relying on ad hoc interventions — is a genuine improvement in regulatory clarity. Predictable rules are better than unpredictable vetoes, both for security agencies and for the carriers and hyperscalers financing the cables.

Where proportionality matters

That said, the United States has a strong interest in not over-rotating. Subsea cables are extraordinarily expensive (commonly hundreds of millions of dollars per system), take years to plan and lay, and depend on multinational consortia to be financeable. The Submarine Telecoms Forum and TeleGeography have repeatedly noted that demand for trans-Pacific capacity continues to grow at double-digit rates, driven primarily by US hyperscalers — the same companies that need new routes to keep pace with AI training, cloud, and content delivery workloads.

Several principles should guide the final rules:

The bottom line

The FCC is right to modernize a rulebook designed for a different era. The risks driving this rulemaking — supply-chain exposure, opaque ownership, physical and cyber sabotage — are not theoretical. But the United States' competitive advantage in the digital economy depends on being the most connected country on earth, not the most insulated. The success of this proceeding will be measured less by how many adversary-linked applications it blocks than by whether, five years from now, more cables land on American shores, serving more routes, with more resilient ownership structures. Security and openness are not opposites here. They have to be engineered together.

Sources & Citations

  1. FCC: Submarine Cable Landing Licenses rulemaking docket
  2. FCC press release on submarine cable NPRM (Nov 2024)
  3. Reuters: Google, Meta drop Hong Kong from Pacific Light Cable
  4. FCC order revoking China Telecom Americas Section 214 authority
  5. European Commission: EU Action Plan on Cable Security
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