Understanding CO2 Safety Codes: IFC, NFPA, and NBIC Compliance

At our company, we’re proud to be industry leaders in code compliance and safety innovation. Our team closely studies federal and local safety codes, and we offer free CO2 permit consultations tailored to your jurisdiction. We designed the Aerosphere® Primary RVL01-17 CO2 Monitoring System line to be fully compliant across all U.S. jurisdictions and adaptable to the latest safety standards.

Why CO2 Code Compliance Matters

Businesses that rely on bulk carbon dioxide—like restaurants/bars, breweries, indoor grow houses and nurseries, and food processors—must manage CO2 life safety diligently. Carbon dioxide leaks can quickly reach dangerous levels, and even low concentrations can pose health hazards in enclosed spaces. Compliance with standards such as the International Fire Code (IFC), NFPA codes, and the National Board Inspection Code (NBIC) is not just a legal requirement—it’s a proactive investment in safety and operations.

🚨 Common Triggers for CO2 Code Compliance Service

We often assist clients who are:

• Responding to a Notice of Violation (NOV)
• Expanding franchises into new cities or states
• Updating legacy systems with modern gas monitoring technology
• Realigning setups after local fire or building code updates

If you’re facing one of these scenarios, reach out for a free consultation tailored to your jurisdiction.

What Is the IFC Code?

The International Fire Code (IFC) is a comprehensive fire prevention standard developed by the International Code Council (ICC). For businesses using compressed gases like CO2, the IFC establishes protocols for storage, monitoring, ventilation, and emergency response.

Since the 2015 IFC edition, any indoor space storing bulk CO2 must include:

• Continuous mechanical ventilation or
• CO2 gas detection systems with alarms set to 5,000 ppm

This ensures early warning of gas buildup, protecting employees and customers.

The 2018 IFC Code and 2021 editions expanded on this, tightening rules around alarm notifications and employee training.

NFPA 55 and Related NFPA Standards

The National Fire Protection Association (NFPA) maintains hundreds of safety standards. For CO2 systems, NFPA 55 is one of the key standards providing detailed safety guidance.

NFPA 55 provides detailed guidance on:

• CO2 tank storage location and ventilation
• Emergency shut-off valves and pressure relief
• Signage, piping, and isolation zones

Facilities exceeding threshold quantities must meet enhanced safety protocols under this code.

While NFPA standards are not always legal mandates, many are adopted into law at the state or municipal level. So, staying NFPA-compliant is both a smart and often required move.

Understanding the NBIC: What Does It Cover?

The National Board Inspection Code (NBIC) governs the installation, inspection, and maintenance of pressure vessels, including bulk CO2 storage tanks. It is maintained by the National Board of Boiler and Pressure Vessel Inspectors.

Key CO2-related provisions include:

• Routine inspections of pressurized storage tanks
• Compliance with NBIC Part 1 (installation) and Part 2 (inspection); Parts 3 and 4 may also apply in specific situations
• Permanent CO2 leak detection systems in occupied areas

NBIC compliance is often required before passing jurisdictional safety inspections.

CO2 Monitoring: Why It’s Essential

Even at moderate levels, CO2 can cause dizziness, confusion, and loss of consciousness. According to OSHA and NFPA, CO2 levels above 5,000 ppm over time are hazardous—and concentrations over 30,000 ppm are immediately dangerous to life and health.

Installing a real-time CO2 detection system is one of the most effective ways to maintain compliance and protect employees. Our Aerosphere® Primary RVL01-17 CO2 Monitoring System is engineered to exceed the detection and alarm standards outlined in IFC 2018 and NFPA 55, while offering auditory and visual alarms, NO/NC relay integration with fire panels and HVAC control.

Comparison Table: IFC vs NFPA vs NBIC

FAQs on CO2 Compliance

Is a CO2 monitor a legal requirement?
Yes—in many cases. CO2 monitors are often a legal requirement under the International Fire Code (IFC) and local fire codes when storing or using bulk CO2 indoors or outdoors. For example, the IFC 2015 and newer editions mandate continuous gas detection or mechanical ventilation for enclosed areas with CO2 tanks. In many jurisdictions, these requirements are enforced by the local fire marshal or building authority. Even when not explicitly required, CO2 monitoring is highly recommended by safety bodies like NFPA and OSHA to prevent hazardous exposure. If you're unsure of your local code, we offer free permit compliance evaluations specific to your city or state.

What is the IFC code used for?
It ensures safe storage and handling of hazardous materials like CO2 in buildings. The code mandates gas detection systems and ventilation for enclosed spaces.

Is NFPA 55 legally required?
NFPA 55 is not federally mandated, but it is often adopted into local or state fire codes. When adopted by an Authority Having Jurisdiction (AHJ), compliance becomes legally enforceable.

What does NBIC stand for?
NBIC stands for the National Board Inspection Code. It regulates inspections and alterations of pressure vessels like CO2 storage tanks.

Real-World Application: How to Get Compliant

Achieving compliance doesn't have to be overwhelming. We make it easy by offering free CO2 code consultations based on your local jurisdiction.

Whether you're under the NFPA, IFC, NBIC or any other specially adopted code, we can help you evaluate your systems and align with both national and local standards.

Our Aerosphere® product line was specifically designed with full code adaptability in mind, meaning it's suitable for all 50 states and countless AHJ requirements.

Conclusion: Safety Starts with Smart Compliance

We’re proud to stand at the forefront of CO2 safety and code compliance. From in-depth knowledge of the IFC fire code to deep familiarity with NFPA 55 and the NBIC, our team is ready to support you in creating a safer, code-compliant facility.

Contact us today for a free CO2 permit diagnosis. We’ll help you understand your obligations and provide solutions that exceed expectations.

From product design to consultation, we’ve built every part of the Aerosphere® CO2 Monitoring product line with compliance and safety in mind—because protecting your people and your property should never be an afterthought.

Let’s build a safer tomorrow, together.