OK HB3883

Requires municipal water and wastewater utilities to implement a "qualified operations and maintenance program" including DEQ-certified personnel, preventative maintenance schedules, annual inspection of 10% of sewer lines, 24/7 emergency response plans with 2-hour maximum response time, 3-year record retention, and infrastructure analysis every 5 years

Mandates utilities adopt fats, oils, and grease (FOG) ordinances for nonresidential entities and require backflow-prevention devices on new construction and remodels connected to sanitary sewer systems

Limits liability for public utilities that implement the prescribed standards, providing protection under Oklahoma's Governmental Tort Claims Act (Title 51, Section 155, paragraph 30)

Provides third-party contractors operating municipal utility systems a 12-month affirmative defense against DEQ administrative penalties for pre-existing infrastructure deficiencies, contingent on submitting a corrective action plan within 180 days

Shields community public utility systems and contract operators from liability for violations that occurred under prior owners/operators, provided they implement a DEQ-approved compliance plan