SPCC plan amendments keep oil spill prevention strategies current under EPA rules. Owners must update plans for specific changes to avoid compliance gaps. Amendments are required within 6 months of any “material change” affecting potential spills, per 40 CFR §112.5.
Common triggers include:
- Installing, decommissioning, or reconstructing tanks (USTs/ASTs)
- Replacing or relocating piping systems
- Modifying secondary containment like berms or double-wall structures
- Construction or demolition altering drainage or spill paths
- Spills exceeding 42 gallons (two in 12 months) or 1,000 gallons total to water
Full plan reviews happen every 5 years, or sooner if better prevention tech emerges.
Owner Responsibilities
- Facility owners or operators handle identification and updates.
- Technical amendments need PE certification; administrative ones (like ownership changes) do not.
- Implementation follows within another 6 months max.
Regular tank and piping work often triggers amendments – check your site’s changes against these criteria to maintain compliance.

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