Efficient Environmental Reviews
333.31Tiered and programmatic environmental documents.333.32Reliance on existing environmental documents.333.33Incorporation.333.34Supplements to environmental documents.333.35Integrity and completeness of information.333.36Integrating NEPA with other environmental requirements.333.37Elimination of duplication with State, Tribal, and local procedures.333.38Unique identification numbers.333.39Emergency procedures.