INSURANCE/HEALTH: Provides relative to formulary placement and cost-sharing requirements for certain generic drugs and biosimilars (EN NO IMPACT See Note)
HB 870 requires Louisiana health insurance issuers to immediately place cheaper generic drugs and biosimilars on more favorable formulary tiers (with lower out-of-pocket costs) when their wholesale acquisition cost is lower than the brand-name reference drug or product. Specifically, if a generic drug costs less than its brand-name equivalent at launch, insurers must cover it with better cost-sharing and cannot impose prior authorization, step therapy, or pharmacy restrictions that make it harder to access than the brand. The same rules apply to biosimilars that are cheaper than their reference biological products. This directly affects health insurance plans and enrollees seeking coverage for these cost-effective alternatives. The bill aims to reduce patient costs by mandating insurer action when cheaper, equivalent options become available.
Bill status
signed
all 5 stages cleared
Introduction
Feb 2026
Committee Review
May 2026
House Passage
Apr 2026
Senate Passage
May 2026
Signed into Law
Jun 2026
Introduced Feb 27, 2026
Signed Jun 12, 2026
Maddy AI version diff · 4 comparisons
What changed between versions
HB870 Original
→
HB870 Act 907
·
4 edits
MODERATE
This bill was finalized into Act 907, updating the definitions of key terms like 'biosimilar' and 'generic drug' to align with specific federal databases and statutes. It mandates that health insurance plans must place these lower-cost drugs on preferred formulary tiers without restrictive barriers like prior authorization. The act also introduces a new option for insurers to use 'net cost calculations' instead of wholesale acquisition costs to determine drug pricing tiers.
Scope change
The bill's scope was expanded to include specific definitions tied to federal standards and added a new provision allowing insurers to use net cost calculations for formulary placement.
DEFINITION
Updated definitions for 'biosimilar' and 'generic drug' to explicitly reference the FDA's Purple Book and Orange Book databases, replacing broader descriptive language.
REQUIREMENT
Added a new subsection requiring insurers to notify the state commissioner within thirty days if they choose to use 'net cost calculations' instead of wholesale acquisition costs for formulary placement.
Refined the requirement that insurers must place lower-cost generic and biosimilar drugs on favorable formulary tiers without imposing prior authorization or step therapy.
TECHNICAL
Changed the document header from 'HLS 26RS-1085 ORIGINAL' to 'ENROLLED ACT No. 907' and updated page counts to reflect the final enrolled version.
Floor votes · Senate May 19, 2026 · House Apr 13, 2026
How they voted
33–0
Passed · 7 other
Total votes 40
May 19, 2026
D
Democratic12
75% Yea
R
Republican28
85% Yea
Vote distribution
All Yea
All Nay
Mixed
No data
Full legislative history
Actions timeline
Total actions
41
Key actions
12
Committee
13
May 31, 2026
Lower · Passed
Notice of Senate adoption of Conference Committee Report.
lower
May 31, 2026
Upper · Passed
Conference Committee Report read; adopted by a vote of 36 yeas and 0 nays.
upper
May 31, 2026
Upper · Passed
Notice House adopted the Conference Committee Report.
upper
May 31, 2026
Lower · Passed
Conference Committee Report read, roll called, yeas 94, nays 0. The Conference Committee Report was adopted.
lower
May 29, 2026
Upper · Passed
Conference committee report received.
upper
May 29, 2026
Lower · Passed
Conference Committee report received. Lies over under the rules.
lower
May 27, 2026
Upper · Passed
Notice House Conference Committee members appointed.
upper
May 26, 2026
Upper · Passed
Senate conference committee members appointed: Talbot, Bass, and Harris.
upper
May 19, 2026
Upper · Passed
Senate floor amendments read and adopted. Read by title, passed by a vote of 33 yeas and 0 nays, and ordered returned to the House. Motion to reconsider tabled.
upper
May 7, 2026
Committee
Committee amendments read and adopted. Read by title and referred to the Legislative Bureau.
upper
May 6, 2026
Upper · Passed
Reported with amendments.
upper
Apr 13, 2026
Lower · Passed
Read third time by title, amended, roll called on final passage, yeas 96, nays 0. Finally passed, title adopted, ordered to the Senate.
lower
Apr 1, 2026
Lower · Passed
Reported with amendments (10-0).
lower
Mar 9, 2026
Committee
Read by title, under the rules, referred to the Committee on Insurance.
lower
Feb 27, 2026
Committee
Under the rules, provisionally referred to the Committee on Insurance.
lower
1 primary · 0 co-sponsors
Sponsors
Role
Legislator
Party
State
District
P
Chris Turner
RRepublican
Ask Maddy
·
AI policy assistant
Ask Maddy about HB 870
Scope: LA
Hi! I can help you understand HB 870. What would you like to know?
Try one of these
i
Maddy answers using official bill text and legislative records. Always verify before sharing.
Sources cited inline