The bill, designated as Act No. 112, enacts R.S. 22:1060.18, which mandates that health insurers provide coverage for proton therapy treatment for cancer patients. Specifically, it prohibits health insurance issuers from denying coverage for proton therapy or proton beam therapy when recommended by the American Society for Radiation Oncology practice guidelines. The bill also stipulates that while coverage must be provided, it may be subject to annual deductibles, coinsurance, and copayment provisions consistent with the health coverage plan.

Additionally, the provisions of this act will apply to any new policy, contract, program, or health coverage plan issued on or after January 1, 2026. Existing policies or plans in effect prior to this date must be updated to comply with the new requirements by their renewal date, but no later than January 1, 2027. The bill includes specific exclusions for plans providing coverage for excepted benefits, limited health benefit insurance plans, and short-term policies with terms of less than twelve months.