The International Code Council's 2018 International Plumbing Code (IPC) is an essential guide for plumbing facilities, outlining both performance and prescriptive goals. This code sets minimum regulations, ensuring that plumbing systems are safe and efficient. The IPC welcomes new and innovative products, materials, and systems, driving progress in the plumbing industry. Notable updates in this edition include a revised table that lists the minimum number of required plumbing fixtures. Now, single-user toilet facilities, which are designed to have one water closet and one lavatory, no longer need to be labeled for use by only males or females, promoting inclusivity. Additionally, solar thermal water heating systems must meet the ICC 900/SRCC 300 standard, ensuring they operate effectively and safely. Well systems are now required to comply with the NGWA-01 standard when local regulations do not adequately cover related topics, ensuring consistency and safety across various installations. This code is vital for anyone involved in plumbing design, installation, or inspection, providing the necessary regulations to create functional and compliant plumbing systems.