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Explore the energy code requirements for commercial lighting in Texas, Oklahoma, and Arkansas, and learn how LED systems can enhance efficiency.
Meeting energy codes for commercial lighting can reduce costs and improve efficiency. Here's what you need to know about lighting requirements in Texas, Oklahoma, and Arkansas:
LED lighting systems are crucial for compliance, offering high efficiency and compatibility with required controls. They also unlock financial benefits like rebates and tax deductions, making them a smart choice for energy-efficient upgrades.
Quick Comparison:
| Criteria | Texas | Oklahoma | Arkansas |
|---|---|---|---|
| Primary Code | 2021 IECC (state/local rules) | 2006 IECC | 2009 IECC or ASHRAE 90.1-2007 |
| Lighting Power Density | 0.6–1.0 W/sq ft (varies) | Based on 2006 IECC | 0.8–1.2 W/sq ft (varies) |
| Control Requirements | Occupancy & daylight sensors | Minimal | Occupancy & daylight sensors |
| Enforcement | State and local | Local jurisdictions only | Local jurisdictions only |
| Public Building Codes | Same as commercial | Same as commercial | Stricter ASHRAE 90.1-2013 |
LED lighting simplifies compliance while cutting energy use by up to 75%. Partnering with experts like Luminate Lighting Group ensures your project meets code and maximizes savings.
As of September 1, 2022, Texas adopted the 2021 IECC for commercial buildings, introducing stricter lighting regulations across the state. However, since Texas operates as a home-rule state, individual cities can implement their own amendments or stricter requirements beyond the state’s baseline. This has led to a diverse set of standards, especially in larger cities like Austin, Dallas, and Houston. For instance, Austin has introduced more rigorous local measures, including reduced lighting power density limits and enhanced control requirements that go beyond the 2021 IECC.
The 2021 IECC specifies maximum lighting power densities for commercial spaces, ranging from 0.6 to 1.0 watts per square foot, depending on the type of space. Office areas typically fall at the lower end of this range, while spaces like retail or manufacturing may allow for higher limits.
The code also mandates specific lighting controls to improve energy efficiency. These include:
The U.S. Department of Energy estimates that compliance with the 2021 IECC can cut lighting energy use in commercial buildings by 20–30% compared to older codes. This translates into substantial cost savings, particularly for larger facilities. To meet these standards, detailed documentation of lighting systems and controls is required.
Once lighting systems are designed, local building officials oversee the enforcement of energy codes through plan reviews, permitting, and inspections. The process begins with a detailed review of submitted plans to confirm compliance with applicable standards. During construction, inspectors verify that installed controls function correctly and that lighting power densities match the approved calculations.
To encourage compliance, many Texas utilities offer rebates for LED upgrades and advanced controls that meet or exceed code requirements. These incentives can significantly offset project costs, though they often require additional documentation and adherence to specific program guidelines. Partnering with experienced lighting professionals can simplify this process.
Building owners should maintain thorough records throughout the compliance process. Comprehensive documentation not only eases inspections and approvals but also ensures alignment with both state and stricter local standards. This approach helps navigate the varying regulations across Texas jurisdictions, reducing potential complications.
Oklahoma takes a decentralized approach when it comes to energy code adoption. Unlike Texas, which enforces mandatory statewide standards, Oklahoma allows each jurisdiction to determine its own requirements. For commercial buildings, the state references the 2006 IECC as part of a broader framework that incorporates the 2015 ICC/IBC guidelines.
This approach has left Oklahoma's lighting energy standards lagging behind national benchmarks by roughly 15–19 years. While states like Oregon have moved forward with adopting ASHRAE 90.1-2019 and regularly updating to the latest IECC editions, Oklahoma continues to rely on older efficiency standards. Although the Oklahoma Uniform Building Code Commission (OUBCC) reviews recommendations for updates, these changes are not mandatory and are left to local jurisdictions to adopt. This means commercial projects must confirm local energy code requirements before proceeding.
Oklahoma's reliance on older codes means its lighting standards fall short of current best practices. Under the 2006 IECC, lighting power density requirements and control measures are outdated. Modern features like occupancy sensors, automatic daylighting controls with photosensors, and demand-responsive lighting controls are not part of the code. Additionally, the compliance pathways - whether prescriptive or performance-based - lack the detailed documentation and verification processes required by more recent standards.
Energy code requirements vary significantly across Oklahoma's cities and counties. Larger municipalities are more likely to adopt stricter energy standards, though specific examples of enhanced lighting requirements are not widely documented.
To address funding challenges for energy-efficient upgrades, Oklahoma expanded its PACE (Property Assessed Clean Energy) program in 2020. This expansion, signed into law by Governor Kevin Stitt on May 20, 2020, under SB 1592, allows all non-single-family properties to finance lighting retrofits and other energy efficiency improvements through special assessments added to property tax bills.
Given the state's decentralized approach, building owners planning commercial lighting projects should consult their local city or county building departments to confirm specific energy code requirements.
In Arkansas, new commercial buildings must adhere to either the 2009 IECC or ASHRAE 90.1-2007 standards. These energy codes cover all new commercial construction and are enforced at the local level. By July 2018, 91 municipalities in Arkansas had officially adopted the state energy code through local ordinances. Some cities, including Fayetteville, Little Rock, and North Little Rock, have taken it a step further by implementing stricter energy codes than the baseline 2009 IECC. These codes establish specific limits on lighting power density (LPD) and outline control requirements for lighting systems.
Lighting systems in commercial buildings must comply with LPD limits ranging from 0.9 to 1.2 watts per square foot, depending on the type of space. The code also mandates the use of both manual and automatic lighting controls. This includes occupancy sensors, manual switches, and automatic shut-off systems for areas that are not in use. Proper documentation is crucial and must include fixture drawings, lighting power calculations, control diagrams, equipment specifications, and compliance forms. Public buildings face even stricter requirements under Arkansas regulations.
For public construction projects, Arkansas enforces the ASHRAE 90.1-2013 standard, which demands lower LPD levels of 0.8 to 1.0 watts per square foot and more advanced control systems. These stricter standards significantly influence the design of lighting systems. Public buildings must incorporate advanced lighting controls, such as automatic daylighting systems with photosensors, multilevel switching options, and enhanced occupancy sensors to optimize energy efficiency.
The table below highlights the major differences in lighting energy codes across Texas, Oklahoma, and Arkansas, providing a straightforward comparison. This breakdown helps contractors, architects, and building owners navigate state-specific requirements to ensure their lighting systems meet compliance standards. Key differences include lighting power density limits, control requirements, and how codes are enforced.
| Requirement Category | Texas | Oklahoma | Arkansas |
|---|---|---|---|
| Primary Energy Code | State-specific energy codes based on IECC principles | References the 2006 IECC | 2014 Arkansas Energy Code (based on the 2009 IECC) |
| Lighting Power Density Limits | Varies by building type and local amendments | Based on the 2006 IECC standards | Varies by project type; public buildings may have lower limits |
| Code Enforcement | Administered at both state and local levels | Enforced through local jurisdiction codes | Enforced locally – 91 municipalities acknowledged compliance as of July 2018 |
| Local Amendments | Some jurisdictions adopt enhanced requirements | Certain areas implement stricter controls | Selected municipalities enforce standards above state minimums |
One of the most noticeable differences lies in enforcement. Arkansas requires local jurisdictions that issue building permits to adopt the state energy code, creating a more uniform compliance structure. Meanwhile, local amendments play a major role in shaping requirements, with certain cities in each state implementing stricter standards. Public building requirements also vary, particularly in Arkansas, where these structures often face tougher regulations compared to commercial buildings.
LED lighting systems have become the go-to solution for meeting modern energy codes in Texas, Oklahoma, and Arkansas. These systems offer high efficiency, precise control, and reduced power consumption - key factors in complying with updated energy codes, which are refreshed every three years to reflect new technologies. By delivering both operational savings and improved building performance, LED lighting plays a pivotal role in helping facilities stay compliant.
LED lighting systems excel at meeting the strict power density limits mandated by modern codes. For example, some applications require lighting power densities as low as 0.6 watts per square foot, making LED retrofits almost essential. Compared to older lighting technologies, LEDs can cut energy use by up to 75%, allowing buildings to meet increasingly stringent Lighting Power Allowance standards.
Additionally, LED systems integrate seamlessly with occupancy sensors and daylight harvesting controls, which are often required by energy codes. These advanced controls can reduce lighting energy costs by as much as 60%, with occupancy sensors and daylight harvesting adding another 20–30% in savings for offices and schools. Beyond energy efficiency, LEDs also ensure compliance with workplace safety guidelines by maintaining consistent, adequate lighting levels while adhering to low power density requirements.
"In 2024, the City of Dallas, TX completed a retrofit of municipal buildings with LED lighting and occupancy sensors, achieving 68% lower lighting energy costs and full code compliance. The project included photometric layouts and was supported by utility rebates totaling $1.2 million." - Sunbright LED, 2025
Luminate Lighting Group specializes in helping clients navigate the complexities of state-specific energy codes. They begin with energy audits to identify inefficiencies and then design tailored LED retrofit solutions that ensure compliance while optimizing savings.
A key aspect of their service is creating detailed photometric layouts, which specify precise fixture placements and control zones to meet power density and performance standards. This ensures that the lighting design aligns with code requirements across various building types.
Their turnkey approach streamlines the entire process - from lighting design and installation to permitting and rebate submissions. By combining the expertise of licensed electricians and experienced lighting designers, Luminate Lighting Group addresses the unique needs of spaces like warehouses, offices, industrial facilities, and municipal buildings.
"In January 2025, Luminate Lighting Group helped a large warehouse in Oklahoma City achieve compliance with ASHRAE 90.1 by installing LED fixtures and advanced daylight harvesting controls. The project led to a 62% reduction in annual energy costs and qualified the client for a $250,000 utility rebate and $180,000 in 179D tax deductions." - Luminate Lighting Group, 2025
With their comprehensive services, Luminate ensures that projects not only meet code requirements but also maximize energy and cost savings.
Upgrading to LED lighting unlocks a range of financial benefits, including utility rebates and federal tax incentives. Luminate Lighting Group assists clients in navigating these programs, handling everything from pre-qualification to paperwork, ensuring timely reimbursements and reduced payback periods.
For instance, federal 179D tax deductions provide significant savings for energy-efficient lighting installations, offering up to $1.88 per square foot for compliant systems. When combined with energy cost reductions - often ranging between 50% and 80% - and available utility rebates, these incentives make LED upgrades an attractive investment. States like Texas, Oklahoma, and Arkansas also offer additional programs, such as enhanced rebates for public buildings or targeted incentives for commercial and industrial projects. Together, these financial advantages further boost the return on investment for LED lighting solutions while ensuring full compliance with energy codes.
For building owners, developers, and contractors working in Texas, Oklahoma, and Arkansas, understanding state-specific lighting codes is crucial. Each state’s unique standards, enforcement practices, and local amendments can significantly affect project compliance and costs. With energy codes updated every three years to reflect new technologies and evolving standards, staying informed isn’t just helpful - it’s necessary to protect your investment.
LED lighting has emerged as a go-to solution for meeting these stringent requirements. Code-compliant LED systems excel at adhering to power density limits and control mandates while delivering exceptional efficiency. Beyond compliance, these systems bring operational advantages, making them a practical and forward-thinking choice.
Investing in LED upgrades also unlocks financial incentives. These incentives, combined with reduced energy costs and lower maintenance needs, can significantly improve the economic outlook of a project.
Navigating these complexities is easier with the right partner. A professional lighting solutions provider like Luminate Lighting Group offers services such as energy audits, photometric layouts, permitting assistance, and rebate submissions. Their expertise ensures projects meet all applicable codes while maximizing financial returns. For instance, by 2018, 91 municipalities in Arkansas had adopted the state energy code, highlighting the importance of expert guidance when managing local enforcement variations. As Luminate Lighting Group explains:
"Our licensed electricians ensure full code compliance and minimal disruption to your operations."
The 2021 International Energy Conservation Code (IECC) sets out specific guidelines for lighting controls in commercial buildings across Texas, with a focus on improving energy efficiency. Among the key requirements are automatic lighting shutoff systems for areas like offices, warehouses, and storage spaces. These systems help ensure lights are turned off when spaces are not in use. Additionally, occupancy sensors must be installed in certain rooms to automatically switch off lights when the room is empty. For spaces with ample natural light, daylight-responsive controls are mandated to adjust lighting levels and minimize energy consumption.
These standards are designed to lower energy usage, cut down on utility costs, and align with state energy regulations. For project-specific advice, it's always a good idea to consult with a professional or check with your local building authority.
Oklahoma takes a decentralized stance when it comes to energy codes, meaning the rules for commercial lighting projects can differ widely depending on the local jurisdiction. Unlike states with a standardized statewide code, municipalities in Oklahoma have the freedom to adopt, tweak, or enforce their own energy codes. This often leads to inconsistencies across the state.
To stay on the right side of these regulations, it's crucial to dig into the specific energy code requirements for the city or county where your project is based. Reaching out to local building authorities or partnering with experts like Luminate Lighting Group can make this process smoother. They can help you navigate the varying rules while ensuring your project achieves optimal energy efficiency and meets its goals.
Upgrading to energy-efficient LED lighting in Arkansas comes with a bonus: you could qualify for utility rebates and financial incentives. These programs are designed to make sustainable energy choices more accessible by reducing upfront costs and offering a quicker return on your investment. Essentially, they help shorten the time it takes for your project to pay for itself.
Luminate Lighting Group is here to help you navigate these opportunities. They specialize in identifying and securing rebates and incentives, ensuring you save as much as possible while staying compliant with energy codes. By tapping into these programs, you can cut down on project costs and enjoy long-term savings on energy bills.
