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the 2022 edition of NFPA 20 further establishes best practices to help ensure state-of-the-art fire protection. This edition includes first-time or expanded coverage of topics such as: 

• Separate requirements for vertical and horizontal shaft centrifugal pumps
• Automated inspection listing requirements
• Minimum water level in storage tanks
• Clarification of vertical fire protection zones
• Operation and installation instructions
• Mechanical seals requirements
• Maximum time to achieve design pressure

Publication Year	2022
Publisher	NFPA