
SUSTAINING MARITIME INDUSTRIES WITH NOXGUARD
At Noxguard, we’re steering the way for eco-friendly marine practices by reducing pollutants in maritime industries. Our Noxguard Marine DEF, also known as AUS-40, diminishes Nitrogen Oxide in exhaust streams to support environmental sustainability. Our DEF is compliant with the U.S Environmental Protection Agency’s Tier IV regulations, which was introduced for a significant reduction in nitrous oxides and hydro-carbon emissions over Tier III regulations. In addition, we adhere to emission standards set by the International Maritime Organization to minimize NOx emissions from maritime transportation.
We are committed to performing with the highest standard, quality, and safety. We lead in innovation and reliability. Join the premier Marine DEF provider, and sail to a greener future with Noxguard.
Noxguard Marine DEF
DEF STORAGE AND HANDLING SOLUTIONS
Noxguard is setting the industry standard for environmental integrity and product efficacy with our Maritime DEF storage and handling. Our expertly managed storage ensures that DEF and marine urea are kept within proper temperature ranges in order to guarantee maximum efficiency and longevity. Carefully kept storage maintains clean, dry and secure conditions. We are committed to protecting your marine operations against contamination. Trust Noxguard with your Maritime DEF solutions for unparalleled quality and performance.

Noxguard Marine DEF
INLAND BARGES AND ADDITIONAL WATERWAY TRANSPORT
At Noxguard, we specialize in providing top-tier Maritime DEF solutions for inland barges and waterway transport. You can trust our expertise and commitment to environmental sustainability. We ensure compliance with regulations and the use of SCR technology to reduce NOx emissions from coastal regions. Whether it’s shipping goods or providing transportation services, our Maritime DEF is guaranteed to deliver unparalleled performance and emission reduction. Choose Noxguard to work with the premier partner for inland watercraft operations.
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LOCATE YOUR NEAREST NOXGUARD PRODUCT
Find Noxguard
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Noxguard Products
At Noxguard, we operate one of the fastest DEF production plants in the United States, providing extensive coverage across Texas. Our dedicated fleet delivers up to 5,400 gallons, maximizing logistics efficiency and eliminating cross-contamination risks. Count on Noxguard for top-tier DEF solutions delivered when and where you need them.
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Production Facilities
Discover the strategic locations of our Noxguard DEF production and distribution facilities. At these sites, we produce top-tier DEF, ensuring consistent quality, dependable supply, and optimal performance for your operation.
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Marine DEF (AUS-40)
Noxguard has the capability to distribute Marine Urea across all ports in the United States and Mexico, ensuring a reliable supply for the maritime industry.
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If you are looking for effective DEF solutions that include tanks, pumps, equipment, and a custom customer program, look no further than Noxguard.
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QUESTIONS ABOUT OUR PRODUCTS OR SERVICES?
Our knowledgeable team is here to help, providing exceptional customer and technical service backed by industry-leading warranties. With ready-to-ship product inventories, we guarantee quick delivery to support your project’s timeline. Interested in a plant visit? We’d love to welcome you! Don’t hesitate to reach out.




