Borinquen Made2026-09-09 · Economy and politics
Investigators closed a CAPECO recommendation on automatic prevention
A Chemical Safety Board follow-up document, different from the final CAPECO report, shows how a recommendation can be closed without the recipient literally adopting all of its original text. On November 18, 2024, the Board changed recommendation 2010-02-I-PR-R7, directed to the American Petroleum Institute, to “Closed – Acceptable Alternative Action”. Borinquen files it in the slot of September 9, 2026 to separate the 2009 accident, the 2015 report, and the follow-up decision nine years later.
The original recommendation called for reviewing ANSI/API 2350 to require automatic overflow prevention systems in new and existing aboveground storage tanks that store gasoline, jet fuel, and other flammable liquids with an NFPA 704 rating of 3 or higher. The system had to be physically separated and independent from level control and monitoring, designed according to an appropriate safety integrity level, achieve the risk reduction determined by documented methodology, and undergo proof testing at a sufficient frequency.
The risk assessment had to consider nearby populations and environmental resources, the nature and intensity of operations, realistic reliability of the measurement system, and the rigor of operator monitoring. Additionally, the CSB wanted to avoid grandfathering. Those requirements arose from the CAPECO accident: approximately 200,000 gallons of gasoline spilled while unloading the Cape Bruny; an estimated 107-acre cloud formed, 17 of 48 tanks and nearly 300 homes and businesses were damaged, and the fires lasted almost 60 hours.
The response history is as important as the closure. In December 2020, API reported that it had published the fifth edition of Standard 2350. According to the CSB summary, that edition incorporated the technical requirements of the recommendation on automatic overfill prevention systems, but did not make their installation mandatory in all described aboveground tanks. The CSB verified the information and continued pointing out that the universal requirement needed to be implemented. Therefore, the publication of an updated standard did not mean immediate acceptance of the entire recommendation.
In 2023, the Board reconsidered a similar recommendation directed at NFPA. Later, API explained that it would not impose AOPS on all tanks due to concerns about introducing unintended hazards in unsuitable processes; it provided a written response on August 14, 2024. The November decision concluded that API had substantially improved the technical requirements and that operators who installed AOPS would have information capable of enhancing safety and reliability. Even so, the document itself acknowledges that the updated standard does not require universal AOPS.
The Board then reconsidered that universal component and determined that all the requirements that remained in effect had been implemented. Hence the term “Acceptable Alternative Action.” Closed does not mean that every tank in Puerto Rico has an automatic system, that API is a regulator, or that the risk of overfill disappears. It means that the CSB accepted an alternative path, after modifying its stance on a part of the remedy. That nuance is precisely what a recommendations dashboard can hide if it only shows “closed.”
For local oversight, the document raises verifiable questions: which terminals adopted the fifth edition; which installed AOPS; which risk assessments include communities and wetlands; how often barriers are tested; and which agency can require it. The CSB does not mandate investments or issue citations. API publishes a consensus standard, while OSHA, EPA, local permits, and operators have different roles. There is also no budget, award, or disbursement associated with the improvements in this status change.
Caveat: “Closed – Acceptable Alternative Action” is a CSB follow-up classification, not a compliance certification for each facility nor zero-risk proof. The primary does not quantify costs or systems installed in Puerto Rico. Investigation/recommendation ≠ fine ≠ accusation ≠ conviction. Source: CSB with decision 2024-11-18; historical record in slot 2026-09-09.