Photo of Royce Duplessis
D Louisiana Senate · District 5

Sen. Royce Duplessis

Compare
Total votes
10,452
all sessions
Attendance
92%
828 missed
Lower than 80% of chamber peers
With party
99%
of cast votes
Higher than 79% of chamber peers
Bipartisan score
1%
crosses aisle rarely
Near the chamber average
Sponsored
705
bills & resolutions
Near the chamber average
Committees
4
assignments
705 bills and resolutions

Sponsored bills

Total
705
Primary
249
Co-sponsor
456
This page
705
matching current filters
Primary SB 356
In committee · Louisiana Senate · Lead sponsor
ENVIRONMENTAL QUALITY: Provides for air monitoring systems in certain facilities. (8/1/26)

Maddy summarySB 356 requires specific industrial facilities - such as petroleum refineries and chemical manufacturers with annual toxic air pollutant emissions exceeding 50 pounds - to install continuous real-time air monitoring systems at their property boundaries. These systems must track 17 listed toxic pollutants (like benzene, chlorine, and formaldehyde) and automatically alert the public and authorities if levels exceed safety thresholds (e.g., benzene above 27 micrograms per cubic meter). Facilities must report data quarterly, maintain records for five years, and publicly share real-time air quality data via a website. The bill applies only to facilities meeting the defined emission and industry criteria, with implementation pending final legislative approval.

In committee Mar 9, 2026 0 co-sponsors
Primary SB 362
In committee · Louisiana Senate · Lead sponsor
CONSUMERS/PROTECTION: Provides that surveillance-based price discrimination is an unfair or deceptive trade practice or act. (8/1/26)

Maddy summarySB 362 prohibits businesses from charging different prices to consumers based on personal data collected through surveillance (like browsing history, location, or biometrics), which is defined as an unfair trade practice. It directly affects businesses selling goods or services and protects consumers from price discrimination tied to their personal characteristics or behaviors. The bill allows exceptions for price differences due to actual cost variations or for discounts offered equally to all consumers (e.g., military or senior discounts), provided the data used for discounts is voluntarily shared and not used for other purposes. Violations can be challenged through private lawsuits, with penalties under existing consumer protection laws.

In committee Mar 9, 2026 0 co-sponsors
Co-sponsor HCR 3
Passed · Louisiana House · Co-sponsor
SNAP/FOOD STAMPS: Urges and requests the Secretary of the Louisiana Department of Health to fund SNAP benefits under certain circumstances

Maddy summaryThis bill (HCR 3) is a concurrent resolution directing the Louisiana Department of Transportation and Development (DOTD) to amend rules governing outdoor advertising signs along highways. It requires increased spacing between signs (500-1,000 feet on most highways), bans stacked signs after July 31, 2025, and prohibits new permits for stacked configurations. The changes aim to reduce driver distractions and preserve scenic highway views, directly affecting billboard companies, property owners, and businesses that operate signage near roads. The resolution modifies existing DOTD rules to align with safety and beautification goals under the Highway Beautification Act. Note: The bill’s title incorrectly references SNAP benefits; the actual content addresses outdoor advertising regulations.

Passed Oct 30, 2025 1 co-sponsor
Co-sponsor SB 61
Signed into law · Louisiana Senate · Co-sponsor
INSURANCE RATES: Provides for the use of credit information in underwriting or rating of certain personal insurance policies. (8/1/25)

Maddy summarySB 61 requires insurers to provide consumers with a copy of the specific credit information they used when underwriting or setting rates for personal insurance policies (like auto or home insurance). This directly affects policyholders who apply for or renew personal insurance, giving them transparency into the credit data influencing their premiums. The key provision mandates that insurers must disclose this credit information upon initial application or renewal, rather than keeping it confidential. The bill passed unanimously in the Senate but does not change how credit data is used in rate calculations, only requiring disclosure to consumers.

Signed into law Jun 30, 2025 1 co-sponsor
Co-sponsor SB 14
Signed into law · Louisiana Senate · Co-sponsor
PUBLIC HEALTH: Provides relative to nutrition. (See Act) (EN SEE FISC NOTE GF EX)

Maddy summarySB 14 delays the implementation date for certain nutrition-related public health provisions from January 1, 2027, to January 1, 2028. The bill directly affects state public health programs implementing these nutrition standards. This amendment, adopted by the Senate with unanimous support, adjusts the timeline for compliance without altering the underlying policy requirements. The full bill's specific nutrition provisions are not detailed in the provided text.

Signed into law Jun 20, 2025 1 co-sponsor
Co-sponsor SB 182
Signed into law · Louisiana Senate · Co-sponsor
MEDICAID: Provides relative to Medicaid prior authorization during a declared emergency. (8/1/25) (EN NO IMPACT See Note)

Maddy summarySB 182 allows Louisiana's Department of Health to temporarily suspend Medicaid prior authorization and other utilization management requirements during a declared emergency. This applies broadly to all Medicaid recipients for essential healthcare services, removing prior restrictions that specifically mentioned cancer treatment or oncology care. The bill's key mechanism gives the Department authority to ensure uninterrupted access to medical services when emergencies like natural disasters or public health crises occur. It affects all Medicaid beneficiaries in Louisiana by streamlining access to necessary care during emergencies. The bill passed unanimously in the Senate and is now pending in the House.

Signed into law Jun 20, 2025 1 co-sponsor
Co-sponsor HB 408
Signed into law · Louisiana House · Co-sponsor
INSURANCE/HEALTH: Requires health insurance coverage relative to pediatric acute-onset neuropsychiatric syndrome and related conditions (EN INCREASE GF EX See Note)

Maddy summaryHB 408, known as "The Gillian Guiffreda Act," mandates that health insurance plans cover treatments for pediatric acute-onset neuropsychiatric syndrome (PANS) and related conditions. This directly affects children diagnosed with PANS - a severe neurological condition causing sudden behavioral and cognitive changes - and their families, who previously faced barriers to insurance coverage for specialized care. The bill requires insurers to provide coverage for medically necessary treatments related to these conditions, without imposing additional out-of-pocket costs on patients. It focuses on ensuring access to established medical care rather than creating new treatments or programs.

Signed into law Jun 20, 2025 1 co-sponsor
Co-sponsor SB 26
Signed into law · Louisiana Senate · Co-sponsor
PUBLIC HEALTH: Provides relative to diabetes information. (8/1/25) (EN NO IMPACT See Note)

Maddy summarySB 26 requires the Louisiana Department of Health to create and provide type 1 diabetes informational materials to the state Department of Education. These materials, which include descriptions of type 1 diabetes, risk factors, warning signs, and recommendations for blood autoantibody screening, must be distributed by school boards to parents and legal guardians of prekindergarten through secondary students at enrollment and annually. The bill mandates that schools share this information via website posting or electronic distribution, focusing on early detection and treatment guidance. It directly affects Louisiana public school students, their families, and school boards by standardizing diabetes awareness in educational settings. The legislation does not fund treatment or alter healthcare access but aims to inform families about critical diabetes indicators.

Signed into law Jun 20, 2025 1 co-sponsor
Co-sponsor SB 42
Signed into law · Louisiana Senate · Co-sponsor
HEALTH CARE: Provides relative to perinatal behavioral health treatment. (8/1/25) (EN INCREASE GF EX See Note)

Maddy summarySB 42 is a technical amendment to clarify which state office oversees perinatal behavioral health treatment services. It corrects the reference from "office of group benefits" to the properly capitalized "Office of Group Benefits" in the bill text. This change affects administrative processes within the state's health care system but does not alter eligibility, funding, or patient access to perinatal mental health services. The bill focuses solely on updating terminology for clarity in existing policy language.

Signed into law Jun 20, 2025 1 co-sponsor
Co-sponsor HB 640
Signed into law · Louisiana House · Co-sponsor
TRANSPORTATION DEPT: Establishes the office of Louisiana Highway Construction (EN INCREASE GF EX See Note)

Maddy summaryHB 640 creates the Office of Louisiana Highway Construction within the state Department of Transportation. The bill grants this new office authority to use emergency procurement procedures for highway projects until January 1, 2026, mirroring existing rules for the broader transportation department. This directly affects state transportation operations by establishing a dedicated unit with specific buying powers for highway construction needs. The bill focuses on administrative structure and procurement processes, not on changing road standards or funding levels.

Signed into law Jun 20, 2025 1 co-sponsor
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