The New York Preplan Application (DOH 348) is an application for a Public Water System (PCs) Plan in the state of New York. It is a comprehensive document that outlines the design, construction, and operational requirements for a PC. To Preplan is submitted to the New York State Department of Health (DOH) for review and approval. There are two types of New York Preplan Application (DOH 348): the Standard Plan and the Priority Plan. The Standard Plan is used for water systems that have been previously approved by the DOH and require only minor modifications or upgrades. The Priority Plan is for new or upgraded water systems that require extensive design and construction work. Both plans require detailed information about the design, construction, and operation of the system, including source water protection, treatment, storage, pumping, distribution, and regulatory requirements.