New York’s B10 Bioheat Mandate: What Building Owners Need to Know Before July 2025
By July 1, 2025, all heating oil used in New York buildings must be B10 Bioheat®, a cleaner fuel containing 10% biodiesel or renewable hydrocarbon diesel. Driven by the Climate Leadership and Community Protection Act, this mandate moves the state toward sustainability while impacting building owners and managers statewide.
This guide will help you comply with the law, reduce emissions, and benefit from tax credits while keeping your operations efficient.

What Is the B10 Bioheat Mandate?
The B10 Bioheat mandate requires heating oil sold for New York buildings to contain at least 10% biodiesel or renewable hydrocarbon diesel (R100/R99) by July 1, 2025. Building on the B5 mandate, this regulation is a key step in New York’s journey to net-zero emissions by 2040, with a B20 mandate scheduled for 2030.
Derived from renewable sources like soybean oil and used cooking oil, Bioheat reduces carbon emissions and improves air quality without requiring costly equipment upgrades.
Why Building Owners Should Care
Transitioning to B10 Bioheat is seamless, but early preparation ensures compliance and maximum benefits. Here’s why the mandate matters:
- No Equipment Upgrades Needed
- B10 Bioheat is fully compatible with existing boilers, furnaces, and tanks (per the National Oilheat Research Alliance).
- Stay compliant without costly retrofits.
- Environmental & Tenant Benefits
- Reduces carbon emissions by 7–8%, helping meet New York’s climate targets.
- Cleaner fuel lowers pollution, improving air quality and attracting eco-conscious tenants.
- Cost Savings & Incentives
- B10 Bioheat is cost-competitive and sometimes cheaper than traditional heating oil.
- Qualify for New York’s Clean Heating Fuel Tax Credit (up to B20).
- Reliable Fuel Supply
- More than 10 Northeast biodiesel producers ensure a steady B10 supply (Clean Fuels Alliance America confirms production stability).
- Mandatory Compliance
- The New York DEC will enforce the B10 mandate starting July 1, 2025.
- Non-compliance may result in penalties—ensure your fuel meets B10 standards.
How to Prepare for the B10 Bioheat Mandate
Stay ahead of the New York Bioheat 2025 deadline with these steps:
- Partner with a Bioheat Supplier
- Work with trusted dealers offering B10 or higher blends.
- Many suppliers already provide B20 and can guide compliance.
- Educate Your Tenants
- Promote your building’s sustainable heating to attract eco-conscious renters.
- Maintain Your Heating Systems
- Regular maintenance helps optimize Bioheat performance and extends equipment life.
- Plan for B20 by 2030
- Stay updated on future mandates via the New York Oil Heating Association (NYOHA) or DEC.
More Than Compliance: The Bigger Impact of B10 Bioheat
The B10 Bioheat mandate isn’t just about regulations—it’s a game-changer for sustainability and efficiency:
- Economic Growth: Biodiesel production supports 62,000 U.S. jobs, boosting local economies.
- Public Health Benefits: Cleaner fuel reduces asthma and cancer risks, improving community well-being.
- Future-Proofing Buildings: Aligns with New York’s clean energy transition, including thermal networks and electrification.

Take Action Today for a Sustainable Future
Switching to B10 Bioheat is a low-cost, high-impact way to cut emissions and keep New York moving toward its green energy goals. Building owners and managers have an opportunity to lead in sustainability while securing compliance.
Next Steps:
✔ Contact your fuel supplier to verify B10 Bioheat delivery.
✔ Explore tax credits for additional savings.
✔ Visit Clean Fuels Alliance America or NYOHA for resources and supplier information.
Make your building a leader in New York’s sustainable future—act now before July 1, 2025!