DC Proposes Changes to 30-Year Underground Storage Tank (UST) Removal Requirement
In February 2020, the District of Columbia finalized a rule requiring owners and operators of underground storage tanks (USTs) more than thirty (30) years old to remove them from the ground within five years. The intent was to address the risks associated with aging infrastructure and the potential for leaks or failures.
Now, regulators are proposing a significant change. Instead of forcing all 30+ year-old USTs out of service by a set deadline, the District would allow these tanks to remain in operation—provided they pass a tank tightness test every three years.
What the Proposed Rule Means
Here’s the key language of the proposal:
Older USTs may remain in service if they pass a tightness test every three (3) years.
If a tank fails, the owner or operator must permanently close it within one (1) year of the failed test.
The original five-year removal requirement would no longer apply.
You can read the official text here: DCMR Section 20-5700.
Why This Matters
For UST owners and operators in D.C., this represents both opportunity and responsibility.
Opportunity: Businesses facing costly removals or replacements may now be able to extend the life of their tanks, saving significant capital—at least as long as they pass testing requirements.
Responsibility: Compliance programs must stay sharp. Regular testing, corrosion monitoring, and detailed recordkeeping are now even more critical. A failed test sets a one-year deadline for closure.
A Shift Toward Performance-Based Compliance
This proposal reflects a broader regulatory trend: moving away from rigid age-based mandates and toward performance-based compliance. Instead of assuming older tanks are unsafe, regulators are focusing on proven performance and testing results.
That means it’s up to owners and compliance managers to ensure systems are properly maintained, tested on schedule, and backed by strong documentation.
Stay Ahead with PASS
At PASS Training & Compliance, we help UST owners and operators stay informed and prepared for changes like this. Our online training programs, compliance tools, and digital recordkeeping solutions are designed to simplify compliance, reduce risk, and protect your business.
Learn more about PASS Training & Compliance and see how we can help you stay ahead of regulatory changes.
