Title
Arigo vs. Swift
Case
G.R. No. 206510
Decision Date
Sep 16, 2014
USS Guardian grounding on Tubbataha Reefs led to environmental damage claims; SC dismissed petition, citing US sovereign immunity and insufficient evidence against Philippine officials.

Case Summary (G.R. No. 195466)

Petition and Reliefs Sought

Petitioners invoked a writ of Kalikasan with prayer for a Temporary Environmental Protection Order (TEPO). They allege violations of R.A. 10067 (unauthorized entry, damage, failure to pay fees, obstruction, resource disturbance) and seek:
• Immediate cease-and-desist over grounding operations
• Demarcation of damaged area and buffer zone
• Suspension of US military port calls and exercises in absence of environmental guidelines
• Enforcement of civil, criminal and administrative suits for environmental law violations
• Declaration of Philippine criminal jurisdiction over US personnel
• Negotiation under VFA Article V for environmental accountability
• Compensation, restoration, rehabilitation programs and establishment of a trust fund
• Review and nullification of VFA immunity provisions
• Other reliefs “just and equitable” for environmental protection

Standing and Procedural Issues

The Court acknowledged petitioners’ status as “non-traditional plaintiffs” under Oposa v. Factoran and the Rules allowing citizen suits on environmental rights. It noted, however, that representative standing must be reconciled with Rule 3 of the Rules of Court governing real parties in interest, class suits and representation. The petitioners’ broad claim to represent minors, unborn generations and multiple provinces risked overextending res judicata and lacked precise identification of injured parties.

Mootness and TEPO

Because salvage operations were completed before the petition, the Court found the prayer for a TEPO (available only under “extreme urgency” and “irreparable injury”) moot. Notice to Mariners No. 011-2013 had already marked the damaged areas and imposed safety measures.

Sovereign Immunity of US Respondents

Under Article XVI, Sec. 3 of the 1987 Constitution (State may not be sued without consent) and international law (par in parem non habet imperium), the Court held US military commanders immune from Philippine jurisdiction for acts jure imperii—offical acts of their warship. Citing US v. Judge Guinto and Minucher v. Court of Appeals, it applied the restrictive doctrine: sovereign immunity bars suit for governmental acts; only commercial/proprietary acts (jure gestionis) or unauthorized/personal acts pierce immunity. Here, respondents were sued in their official capacity and judgment would require US government action and funds, constituting a suit against the US itself.

International Law and UNCLOS

In a concurring opinion, Justice Carpio observed that under UNCLOS Articles 30–32, warships generally enjoy immunity but flag States bear “international respon

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