Chapter 4 describes the various secondary containment requirements and demonstrates how these requirements apply to specific equipment and activities at an SPCC-regulated facility. This chapter also discusses:

• the impracticability determination provision of the rule,
• the additional requirements that accompany an impracticability determination, and
• the documentation needed to support such a determination.

The role of the EPA inspector in reviewing and evaluating secondary containment requirements and impracticability determinations is also discussed.

• Chapter 4: Secondary Containment and Impracticability Determinations (PDF)(73 pp, 2 MB)