The Hawaii State Plumbing Code document outlines amendments to the 2018 Uniform Plumbing Code. The primary purpose of these amendments is to adopt the state’s plumbing code as required by Hawaii Revised Statutes (HRS) Section 107-25. The code provides minimum requirements for the design, installation, alteration, repair, and construction of plumbing and drainage systems. This ensures all new construction, relocation, alteration, repair, or reconstruction meets these standards. Terms like “Chapter,” “IAPMO,” “UPC,” and “Section” are defined for clarity. The adoption of the 2018 Uniform Plumbing Code includes specific appendices but excludes D, E, F, and H, covered by other state codes or administrative rules.
Significant amendments to the code include the definition and enforcement of plumbing regulations to align with state standards, licensing requirements, and organizational roles like Health Officer definitions. Seismic support requirements are specified to ensure plumbing systems withstand earthquake forces. The minimum number of required plumbing fixtures is defined per building occupancy type, following the Hawaii State Building Code. Adjustments to building sewer material requirements ensure consistency with existing provisions, and roof drainage systems must consider local rainfall data for adequate design. These updates ensure the plumbing code is aligned with Hawaii’s specific needs, addressing safety, health, and environmental concerns while ensuring consistency with broader building standards.
