Substitute Bill No. 5519 introduces new regulations for on-site wastewater specialists and water operator apprentices under the Department of Public Health. It establishes a structured certification process with three phases—Phase I, Phase II, and Phase III—each with specific qualifications and responsibilities. Starting October 1, 2026, individuals performing duties as on-site wastewater specialists must be certified by the commissioner and appointed by a local director of health, although local agents can perform these duties without certification if they apply by October 1, 2027. The bill eliminates fees for certification applications and renewals, and mandates the commissioner to hold conferences for specialists to provide updates on sewage treatment systems. It also repeals previous provisions regarding certification processes, streamlining the regulatory framework.

Furthermore, the bill expands the list of licensed professions under the Department of Public Health to include on-site wastewater specialists and other professions, while removing the previous designation of a single profession. It modifies the renewal process for licenses and certificates, establishing specific timelines for renewals and requiring individuals to apply for renewal within three years of issuance. Additionally, the bill sets new standards for the certification of water treatment plant operators and introduces provisions for apprenticeships, including the requirement for completion of an approved program and passing a written examination. The act aims to enhance professionalism and accountability in these fields while ensuring compliance with established standards.