SESSION WATCH
Died SENATE · SESSION 2026

No. SB 1166

Insurer Disclosures on Prescription Drug Coverage
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SPONSOR
Rodriguez
FILED BY
Ana Maria Rodriguez — District 40, Republican [search donations]
EFFECTIVE
7/1/2026
DIED IN
Banking and Insurance

Filed under Insurance.

PROVIDED SUMMARY

Insurer Disclosures on Prescription Drug Coverage; Requiring individual and group health insurers to provide notice of prescription drug formulary changes within a certain timeframe to current and prospective insureds and the insureds’ treating physicians; requiring insurers to maintain a record of formulary changes; defining the term “cost-sharing requirement”; providing an exception to requirements relating to changes in a health maintenance organization’s group contract, etc.

Full bill text →

Plain English Summary

AI-GENERATED
Locks in prescription coverage once a doctor certifies medical necessity.

Insurers and HMOs must notify patients and their doctors 60 days before changing a drug's formulary status. If a doctor certifies the drug is medically necessary, coverage continues unchanged through the rest of the policy year.

Once that certification is accepted, the insurer cannot raise the patient's costs, move the drug to a worse tier, deny previously approved coverage, or add new prior-authorization or step-therapy requirements for the rest of the year.

Manufacturer copay cards and coupons must count toward a patient's deductible, but only for drugs with no generic version, or when the patient got separate authorization to use a brand-name drug despite a generic existing.

Insurers must track formulary changes and unclaimed manufacturer payments and report both to state regulators every year, who compile the data into a public report for the Governor and Legislature.

KEY PROVISIONS
§ 1 60-day notice required before formulary changes majors. 627.42394

AIIndividual, group, and HMO insurers must notify current and prospective enrollees and their treating physicians at least 60 days before any prescription drug formulary change takes effect, through the insurer's website, electronic notice, and first-class mail.

“At least 60 days before the effective date of any change to a prescription drug formulary” bill text, line 129 →
§ 2 Insurer cannot downgrade or restrict coverage once certified majors. 627.42394

AIOnce a treating physician's certification of medical necessity is accepted, the insurer may not increase out-of-pocket costs for the drug, move it to a more restrictive tier, deny previously approved coverage, or otherwise limit it, including through a new prior-authorization or step-therapy requirement, for the rest of the policy year.

“May not modify the coverage related to the covered drug during the policy year” bill text, line 162 →
§ 3 Manufacturer copay assistance must count toward the deductible majors. 627.6383

AIInsurers and pharmacy benefit managers must apply manufacturer coupons, copay cards, and other third-party payments toward a patient's cost-sharing requirement when the prescribed drug has no generic equivalent, or when the patient obtained authorization to use it despite a generic existing.

“apply any amount paid for a prescription drug by an insured or by another person on behalf of the insured” bill text, line 218 →
§ 4 Pharmacy benefit managers must pass through the cost-sharing credit moderates. 627.64741

AIContracts between insurers and pharmacy benefit managers must require the PBM to apply qualifying third-party payments toward the insured's cost-sharing requirement, and to disclose that duty to every insured directly.

“Disclose to every insured whose insurance policy is issued, delivered, or renewed in this state” bill text, line 321 →
§ 5 Insurers must report formulary changes; state must publish the data moderates. 627.42394

AIHealth insurers and HMOs must track formulary changes and submit annual reports to the Office of Insurance Regulation by March 1, listing removed drugs, tier changes, and added costs to insureds; the office must then compile and publish this data and send it to the Governor and Legislature by May 1.

“A health insurer shall maintain a record of any change in its formulary during a calendar year” bill text, line 185 →
§ 6 New formulary rules override the HMO's general 45-day notice option moderates. 641.31(36)

AIFor HMO group contracts, the general rule letting a 45-day notice suffice to cut or downgrade benefits no longer covers prescription drug formulary changes; those are now governed exclusively by the new 60-day notice and certification-lock requirements.

“Except as provided in paragraphs (a), (b), and (c)” bill text, line 489 →
TIMELINE
3/13/2026
Died in Banking and Insurance
1/13/2026
Introduced
1/12/2026
Referred to Banking and Insurance; Appropriations Committee on...
1/6/2026
Filed
STATUTES IT CHANGES
s. 627.42394
+694 / −0
s. 627.6383
+558 / −0
s. 627.6385
+208 / −5
s. 627.64741
+115 / −0
s. 627.65715
+643 / −0
s. 627.6572
+115 / −0