The bill amends Section 1158 of Title 59 of the Oklahoma Statutes, which governs the installation of individual sewage disposal systems. The key change is that the requirement for certification from the Department of Environmental Quality is now applicable only to individuals who install more than one individual sewage disposal system per calendar year, as opposed to the previous threshold of ten systems. Additionally, the term "systems" has been changed to "system" to reflect this new limit. The bill also updates the terminology used in the law, changing "Specialists" to "specialists."

Furthermore, the bill outlines the responsibilities of the Environmental Quality Board, which includes establishing minimum certification requirements, procedures for penalties, and rules for the suspension or revocation of certifications. It also mandates that an annual fee be paid for each certification. The bill is set to take effect on November 1, 2025.