Understanding Prevention of Significant Deterioration (PSD) in Environmental Law

Definition & Meaning

The Prevention of Significant Deterioration (PSD) is a program established by the Environmental Protection Agency (EPA) aimed at maintaining air quality in areas where it currently meets or exceeds national standards. This program requires state or federal permits for new or modified industrial sources to limit their emissions of air pollutants. The PSD program is designed to ensure that air quality remains healthy and that any new developments do not degrade the existing air quality.

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Real-world examples

Here are a couple of examples of abatement:

Example 1: A manufacturing company plans to expand its facility and install new machinery that will increase emissions. Before proceeding, the company must apply for a PSD permit to evaluate the potential impact on local air quality.

Example 2: A power plant intends to upgrade its operations to improve efficiency. It must undergo the PSD permitting process to ensure that the upgrades do not result in significant deterioration of air quality. (hypothetical example)

State-by-state differences

State PSD Implementation
California Has additional state-specific requirements under the California Clean Air Act.
Texas Operates its own PSD program and has unique permitting processes.
New York Requires a State Environmental Quality Review (SEQR) alongside PSD permits.

This is not a complete list. State laws vary, and users should consult local rules for specific guidance.

Comparison with related terms

Term Definition Key Differences
New Source Review (NSR) A program that regulates air emissions from new or modified sources. NSR includes both PSD and Nonattainment NSR, while PSD specifically applies to areas meeting air quality standards.
Nonattainment Area An area that does not meet national air quality standards. PSD applies to attainment areas, while nonattainment areas follow different regulations.

What to do if this term applies to you

If you are planning to construct or modify a facility that may emit air pollutants, it is crucial to determine whether you need a PSD permit. Start by consulting the EPA guidelines and your state's environmental agency. You can also explore US Legal Forms for templates and resources to help you navigate the permitting process. If your situation is complex, consider seeking professional legal assistance to ensure compliance.

Quick facts

  • Typical fees: Varies by state and project size.
  • Jurisdiction: Federal and state environmental agencies.
  • Possible penalties: Fines for non-compliance can be substantial.

Key takeaways