2018 National Standard Plumbing Code Illustrated

The 2018 National Standard Plumbing Code Illustrated (NSPC) is a comprehensive guide developed to ensure the safe and effective design, installation, and inspection of plumbing systems. Maintained by the National Association of Plumbing-Heating-Cooling Contractors (PHCC) and published by IAPMO, this edition reflects updates and best practices relevant to the plumbing industry as of 2015.

Key Topics Included:

• Water supply and distribution: Guidelines for potable water systems, pipe sizing, and backflow prevention.
• Sanitary drainage: Standards for waste disposal systems, venting, and pipe materials.
• Fixtures and equipment: Requirements for toilets, sinks, showers, and other plumbing fixtures.
• Special installations: Provisions for medical gas systems, swimming pools, and green plumbing technologies.
• Appendices: Includes supplemental materials like the Green Plumbing and Mechanical Code Supplement.

About IAPMO

The International Association of Plumbing and Mechanical Officials (IAPMO) is an organization that promotes the welfare of and harmony between the owner, the builder, and the craftsman. It was founded on May 17, 1926, with the mandate to advance the latest and most improved methods of sanitation. The IAPMO community of plumbing experts plays a vital public health role in assuring access to clean water and sanitation.

Other Works:

• 2018 National Standard Plumbing Code Illustrated
• 2021 National Standard Plumbing Code Illustrated
• 2024 National Standard Plumbing Code Illustrated