Float Tank Building Code Requirements

Last updated: April 2026

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Quick Answer

There is no large national pool code in the United States or Canada; regulations are primarily decided at the state or provincial level, with cities and counties adding their own rules.
The Floatation Tank Association (FTA) officially updated its North American Float Tank Standards in 2025, providing best practices for quality, sanitation, and safety.
Local health departments may classify a float center as a pool, spa, tattoo parlor, or even a hair salon due to a lack of specific float tank codes.
The Centers for Disease Control and Prevention's (CDC) 2023 Model Aquatic Health Code (MAHC) includes recommendations for the operation and maintenance of floatation tanks.

Starting a float center means navigating a complex web of regulations. We often find that there is no single, overarching national pool code in the United States or Canada. Instead, rules for aquatic facilities, including float tanks, are primarily determined at the state or provincial level, and then further complicated by additional regulations from cities and counties. This fragmented system means that the specific requirements for getting float tanks approved can differ significantly from one location to another. The Floatation Tank Association (FTA) works to address this by offering guidance, and they officially updated their North American Float Tank Standards in 2025 to provide best practices for quality, sanitation, and safety.

What are Float Tank Building Code Requirements?

Float tank building code requirements are not uniform across the United States or Canada. We have found that there is no single, large national pool code that dictates how float tanks should be built or operated. Instead, these regulations are primarily decided at the state or provincial level. This means that each state or province has its own unique set of rules. To add to the complexity, cities and counties can enforce their own additional pool rules, which layer on top of the state or provincial guidelines. The result is a fractured system where the specifics of getting float tanks approved vary hugely from place to place.

Because specific rules for float tanks are rare, how they should be regulated often comes down to the personal opinion of the local health department official. This can lead to inconsistencies and challenges for float center operators. We have seen that a local health department may classify a float center in various ways, such as a pool or spa, a tattoo parlor, or even a hair salon. This varied classification highlights the lack of specific, tailored regulations for floatation therapy.

The Floatation Tank Association (FTA) recognizes this need for clear guidance. The FTA's Sanitation and Regulations Committee officially updated the North American Float Tank Standards in 2025. These standards provide best practices to ensure quality, sanitation, and safety while operating float tanks. We recommend using these industry-developed guidelines to help inform your planning and discussions with local authorities.

The Fragmented Regulatory Landscape

The reality of float tank regulation is one of significant local variation. We see that almost all pool rules and regulations are decided on a state or provincial level. This means that while there might be similarities between different codes, key differences can exist, even in fundamental aspects like ideal pH levels. When we look at the county and city levels, they can impose their own additional rules, making the regulatory environment even more confusing. For example, some states like Rhode Island and Arkansas have no readily available statewide regulations, requiring operators to focus on county rules. California, on the other hand, has multiple local and county regulations, meaning operators must contact their local department of health directly for information. This patchwork approach makes it essential for operators to research their specific jurisdiction thoroughly.

Lack of Specific Float Tank Codes

A significant challenge we observe is that almost none of the existing pool rules explicitly address float tanks. This absence of specific guidelines means that health departments often have to interpret existing codes, or their officials rely on personal opinions to decide how float tanks should be regulated. This situation can lead to float tanks being shoehorned into categories like pools or spas, which ignore the unique characteristics of a float tank environment. For instance, a float tank contains a saturated solution of magnesium sulfate with a specific gravity of 1.23 to 1.3, which is very different from standard pool water. Applying rules designed for large swimming pools to these small, high-salinity environments can create unnecessary burdens and even unintended negative consequences.

The Role of Industry Standards

To help bridge this gap, industry organizations are stepping in. The Floatation Tank Association (FTA) actively develops best practices for operating float tanks. Their North American Float Tank Standards, updated in 2025, offer recommendations for the baseline best practices to ensure quality, sanitation, and safety in a commercial setting. These recommendations are based on current evidence and decades of operational experience, dating back to the invention of the commercial float tank in the 1970s. We find these standards to be a crucial resource for both operators and health departments looking for guidance where specific local codes are absent. The FTA's work aims to provide a consistent framework that acknowledges the unique nature of floatation therapy, rather than forcing it into unsuitable categories.

How Do Health Departments Classify Float Tanks?

Health departments typically approach the regulation of float tanks in one of three main ways. The most common direction we see is for a health department to decide that float tanks are defined as pools or spas, and therefore must follow existing pool or spa codes. However, health departments often realize that applying all pool codes directly would lead to impractical or even ridiculous rules. Imagine having a "No Diving" sign posted in front of each float tank, or requiring a lifeguard on duty for a single-person chamber. These examples highlight why direct application of all pool rules does not make sense for float tanks.

Even less obviously absurd rules, like "continuous filtration," can conflict with running a float tank. Continuous filtration typically requires a pump to run all the time, which may not be suitable for the quiet, still environment intended for floatation therapy. Despite these challenges, the Model Aquatic Health Code (MAHC) aims to develop a suggested code for health departments to use when regulating pools, and it includes regulations for floatation tanks. The CDC's 2023 Model Aquatic Health Code (MAHC) provides recommendations for floatation tank operation and maintenance, offering a more tailored approach than generic pool codes. This guide can be used by local, state, tribal, and territorial health departments, as well as floatation tank operators.

Regulating Like a Pool (with exceptions)

When a health department classifies float tanks as pools or spas, it often comes with a set of exceptions. This approach acknowledges the unique aspects of floatation therapy while still trying to fit it into an existing regulatory framework. We have seen health departments make these exceptions because they understand that a float tank is distinct from a swimming pool or a traditional spa. For instance, the high density of Epsom salt solution in a float tank, with a specific gravity of 1.23 to 1.3, makes it very different from conventional recreational water. This high salinity naturally inhibits many pathogens, reducing some of the risks associated with typical pools.

However, even with exceptions, challenges remain. Requirements for chemical treatment, filtration cycles, or water testing frequencies designed for large, chlorinated pools may not be appropriate for the small, saline environment of a float tank. For example, some pool regulations might mandate specific chlorine levels, but float tanks rarely use chlorine for water treatment. Instead, they rely on other effective disinfection methods. It is critical for operators to engage with their local health department to discuss these distinctions and advocate for sensible exceptions that align with the best practices for floatation tanks.

The Model Aquatic Health Code (MAHC)

The Model Aquatic Health Code (MAHC) is a significant resource in the effort to create more appropriate regulations for float tanks. It is a set of voluntary guidelines developed by the Centers for Disease Control and Prevention (CDC) to help local and state authorities prevent waterborne diseases and injuries in public aquatic venues. The MAHC aims to continue developing a suggested code for health departments to use when regulating pools, and importantly, it includes regulations for floatation tanks. This inclusion is a step forward because it acknowledges float tanks as a distinct type of aquatic facility.

The CDC's 2023 MAHC provides key recommendations for the operation and maintenance of floatation tanks. This guide combines information from the MAHC and the CDC's website to highlight important considerations for health departments and operators. For instance, it addresses critical aspects like water supply, disinfection methods, and general maintenance. We find that the MAHC offers a more informed perspective on float tank management compared to generic pool codes, which often ignore the unique nature of floating. We encourage operators and health officials to refer to the MAHC for detailed information, available at cdc.gov/mahc. This resource helps ensure that safety and sanitation practices are tailored to the specific environment of a float tank, rather than imposing irrelevant requirements.

What Industry Standards Apply to Float Tanks?

Several organizations in the US manage regulations for recreational waters, including pools and spas. These organizations work to establish safety and health guidelines for various aquatic facilities. For float tanks, specific industry standards have been developed to address their unique characteristics and ensure safe operation. We rely on these standards to guide best practices for our centers and to inform discussions with regulatory bodies.

One key organization is NSF International. NSF International creates product safety standards and certifications. Standard language for float tanks is included in their NSF/ANSI/CAN 50 Standard for recreational water facilities. This standard is a comprehensive document that covers various aspects of recreational water safety, and its inclusion of float tanks provides a recognized framework for their design and operation. Additionally, the Floatation Tank Association (FTA) plays a crucial role in establishing best practices for operating float tanks. The FTA's Sanitation and Regulations Committee has officially updated the North American Float Tank Standards, with the latest version available in 2025. These standards are designed to ensure quality, sanitation, and safety for float tank operations.

North American Float Tank Standards

The North American Float Tank Standards represent a critical resource for the float community. These standards are our recommendations for the baseline best practices to ensure quality, sanitation, and safety while operating float tanks in a commercial setting. They were initially written in February 2017 and have been updated since, with the latest version available in 2025. These recommendations are not arbitrary; they are based on the current evidence that exists for float tanks, in addition to decades of operational experience dating back to the invention of the commercial float tank in the 1970s. We find that these standards are supported by an appendix that explains the research and reasoning behind the recommendations, along with supporting documentation.

We observe that in jurisdictions without existing float tank standards, there is often an attempt to categorize them with pools or spas. "In jurisdictions that do not already have standards for float tanks, there is often an attempt to initially place them in the same category as pools or spas. Doing so ignores the unique nature of floating, leaving out inherent characteristics important to float tank safety and enforces others that make no sense for the small, saline environment," as stated in the North American Float Tank Standard. This practice can lead to unintended negative consequences for floater health and place unfair and unnecessary burdens on float tank operators. The North American Float Tank Standards aim to prevent these issues by providing specific, relevant guidance.

NSF International's Role

NSF International is a globally recognized organization that develops public health standards and certification programs. Their involvement in float tank standards lends significant credibility to industry best practices. The NSF/ANSI/CAN 50 Standard for recreational water facilities is particularly relevant. This standard covers equipment and chemicals used in recreational water, and it now includes specific language for float tanks. This means that manufacturers and operators can refer to a widely accepted standard for product safety and performance related to float tanks.

We understand that purchasing such a standard provides detailed specifications for various components and operational procedures. Having float tank language within a broader standard for recreational water facilities helps to integrate float tanks into the existing regulatory landscape in a structured way, rather than leaving them as an outlier. This helps health departments understand that there are established guidelines for float tank equipment and operation, separate from general pool equipment. The work of NSF International, in conjunction with the Floatation Tank Association, helps to solidify the professional and safe operation of float centers, ensuring that the public can trust the quality and safety of these unique wellness environments. We actively monitor updates from organizations like NSF International to ensure our practices remain current and compliant.

How Do Float Tanks Differ from Pools and Spas?

Float tanks are distinct from traditional swimming pools and spas in several fundamental ways, which is why applying generic pool codes to them can be problematic. The most obvious difference lies in the water solution itself. A float tank contains a saturated solution of magnesium sulfate, commonly known as Epsom salt, with a very high specific gravity. This specific gravity typically ranges from 1.23 to 1.3, making the water much denser than that found in a regular pool or spa. This high density is what allows individuals to float effortlessly on the surface. In contrast, pools and spas primarily use fresh water with much lower mineral content and density.

Another key difference is the water temperature. Float tanks maintain a consistent temperature of approximately 92–96°F (33.3–35.6°C). This temperature is carefully selected to match the average external skin temperature, creating a feeling of thermal neutrality where the sensation of the water virtually disappears. Pools and spas, while often heated, typically have varying temperature ranges and are not designed to achieve this specific state of thermal neutrality. Furthermore, float tanks are designed to provide a light and sound-reduced environment, also known as sensory deprivation, for relaxation therapy. This focus on minimal external stimulation is central to the float experience, whereas pools and spas are generally open, active environments with ambient light and sound.

Unique Water Chemistry and Density

The water chemistry in a float tank is unlike that of any other recreational water facility. The high concentration of Epsom salt creates a hyper-saline environment. This high salinity is not just for buoyancy; it also plays a significant role in sanitation. The extreme salt content makes it very difficult for most microorganisms, including many common pathogens, to survive and thrive. This inherent antimicrobial property is a natural defense mechanism that reduces the risk of disease transmission, even before other disinfection methods are applied. We often explain to new operators that this is a core distinction when comparing float tank water to traditional pool water.

When we consider the specific gravity of 1.23 to 1.3, it means the water is over 20% denser than fresh water. This density is crucial for floatation, but it also impacts how the water behaves and how it needs to be filtered and treated. Standard pool filters and pumps may not be designed to handle such a dense, viscous solution effectively. This is why specialized equipment is often required for float tanks, which must be robust enough to manage the unique properties of the Epsom salt solution. This fundamental difference in water chemistry and density means that rules designed for diluted pool water are often irrelevant or even counterproductive for float tanks.

Controlled Environment for Sensory Deprivation

The primary purpose of a float tank is to create a controlled environment that reduces external stimulation. This is known as sensory deprivation or Restricted Environmental Stimulation Therapy (REST). The tanks are designed to be light-proof and sound-proof, allowing the floater to experience profound relaxation and introspection. The water temperature is precisely maintained at skin temperature to eliminate tactile sensation, and the high salt content removes the sensation of gravity. This combination of factors is what defines the float experience.

Pools and spas, by contrast, are generally designed for social interaction, exercise, or general relaxation in an open environment. They are typically well-lit, often have music or other ambient sounds, and are not intended to minimize sensory input. Trying to apply regulations for a public swimming pool, which might mandate bright lighting or specific noise levels, directly to a float tank would fundamentally undermine its purpose. "Equating pools and spas with floatation tanks may create unintended negative consequences to the health of the floater and place unfair and unnecessary burden on the float tank operator," as noted in the North American Float Tank Standard. Understanding this core difference in purpose and environment is key to developing appropriate and effective regulations for float tanks.

Why is Sanitation Critical for Float Tanks?

Sanitation is critical for float tanks because, despite the unique properties of the Epsom salt solution, improper treatment can still lead to health risks. When the water solution used in floatation tanks is not properly treated, pathogens can survive, allowing for an increased risk of disease transmission. While the high salinity of float tank water does inhibit many microorganisms, it does not make the water entirely sterile or immune to contamination. Therefore, robust sanitation protocols are essential to ensure the safety and well-being of every floater.

We find that float tank systems rarely use chemicals like chlorine to treat the water, primarily due to the corrosive nature of chlorine on tank materials and its potential to irritate floaters' skin and eyes in a high-salt environment. Instead, other effective disinfection methods need to be incorporated to reduce the likelihood of pathogen survival. These methods are crucial for maintaining water quality and preventing the spread of infections. Furthermore, the water used by floatation tank facilities should always be from a potable source. This ensures that the water entering the tank is already clean and safe, reducing the initial microbial load. We emphasize that proper sanitation is not just about disinfection, but a comprehensive approach from water source to ongoing maintenance.

Pathogen Survival and Risk

Even in a high-salinity environment, certain pathogens can survive if the water is not properly managed. The Centers for Disease Control and Prevention (CDC) highlights that when the water solution used in floatation tanks is not properly treated, pathogens can survive, increasing the risk of disease transmission. While Epsom salt is a natural disinfectant, it is not a complete sterilant. Organisms like certain bacteria, fungi, or viruses, particularly those introduced by users, can potentially persist without additional disinfection. This risk underscores the need for operators to implement and diligently follow strict sanitation protocols.

We teach that the unique characteristics of float tanks, such as their small volume and enclosed nature, mean that any contamination can become concentrated if not addressed. Unlike a large swimming pool with massive dilution, a float tank's water volume is relatively small in comparison to the number of users it serves over time. This makes effective and consistent disinfection even more important. Understanding the potential for pathogen survival helps us develop and implement robust sanitation plans that go beyond just relying on the salt content. It is about actively managing the water quality to minimize any health risks to our floaters.

Recommended Disinfection Methods

Because float tank systems rarely use chlorine, other effective disinfection methods must be incorporated to reduce the likelihood of pathogen transmission. The industry has adopted several proven technologies for this purpose. Ozone and ultraviolet (UV) treatment are two of the most common and effective methods. Ozone is a powerful oxidizer that can kill bacteria and viruses, breaking down contaminants in the water. UV light works by destroying the DNA of microorganisms, preventing them from reproducing and causing illness. Both methods are highly effective and do not leave behind chemical residues that could affect the float experience or corrode tank components.

We often combine these methods with robust filtration systems. Filtration physically removes particulate matter, hair, and skin cells from the water, reducing the organic load that disinfectants need to tackle. Regular testing of water parameters, such as pH, alkalinity, and disinfectant levels (if applicable, for secondary disinfectants), is also a critical part of the sanitation routine. The Floatation Tank Association's North American Float Tank Standards provide detailed guidance on these and other sanitation practices. We believe that a multi-barrier approach, combining filtration, primary disinfection (like ozone or UV), and consistent water chemistry management, is the most effective way to ensure float tank water is clean and safe for every user. For more information on these methods, we recommend reviewing the basics of float tank sanitation.

Potable Water Supply

The foundation of any good aquatic sanitation program begins with the source water. For float tanks, it is crucial that the water used by floatation tank facilities should always be from a potable source. Potable water is water that is safe to drink, meaning it meets public health standards for quality and contains minimal contaminants. Starting with potable water significantly reduces the initial microbial load in the tank, making the subsequent disinfection and filtration processes more effective and less burdened.

Using non-potable water, such as well water that hasn't been tested, introduces an unknown level of bacteria, viruses, and other impurities into the float tank system. This would place an undue burden on the disinfection systems and increase the risk of waterborne illnesses, even with advanced treatment. We ensure that our water supply is always from a municipal potable source, and we regularly check for any advisories or changes in local water quality. This proactive approach helps us maintain the highest standards of cleanliness and safety for our floaters, from the moment the water enters the tank until it is drained and replaced.

Where Can I Find Local Float Tank Regulations?

Finding the specific regulations that apply to your float center can be a challenging but essential step in the approval process. The most effective way to find the regulations that apply to your center is to visit your city, county, or state's health department website. We have found that direct contact with these local agencies is often necessary because float tank regulations are not uniformly codified across all jurisdictions. Since there is no single national pool code in the United States or Canada, the specifics truly depend on your exact location.

Some states, like Rhode Island and Arkansas, have no readily available statewide regulations for float tanks, which means you must look for county-level rules. This often requires contacting the county health department directly to inquire about their specific classifications and requirements. California is another example where multiple local and county regulations exist, making it necessary to call your local department of health for information. The Floatation Tank Association (FTA) actively collects and shares updated codes from various US cities and counties to help operators navigate this complex landscape. They even encourage community members to help keep their resources up-to-date by sending in any new codes they find.

Navigating State and Local Websites

When you begin your search, start with your state's department of health website. Many states will have sections dedicated to public health, environmental health, or recreational water facilities. Look for keywords such as "pools," "spas," "aquatic facilities," or "environmental health." If you find general pool codes, review them to see if float tanks are mentioned or if there's any guidance on how unique facilities are handled. We often find that states might have overarching guidelines, but the specifics are delegated to local authorities.

If statewide regulations are not clear or readily available, or if the state defers to local jurisdictions, your next step is to check your county and city health department websites. These local agencies are typically the ones responsible for issuing permits and conducting inspections for businesses like float centers. For example, in states like Louisiana, where no known statewide regulations exist, you would look for county regulations, such as the Lafayette code mentioned by the Floatation Tank Association. Be prepared to search through different departments or even use the website's search function with terms like "float tank," "isolation tank," "spa," or "pool."

Direct Contact with Health Departments

In many cases, online research will only get you so far. We have learned that the most reliable method for obtaining accurate and specific information is to directly contact your local health department agency. When you call or email, be prepared to clearly explain what a float tank is and how it operates. You might need to describe the unique aspects, such as the high salt content, the temperature, and the disinfection methods used. It is helpful to have a concise description of your float center concept ready.

We recommend asking specific questions:

How are float tanks classified in this jurisdiction?
Are there any specific codes or regulations for float tanks?
If not, which existing codes (e.g., pool, spa, salon) will apply, and what exceptions might be considered?
What is the process for approval and inspection?
Who is the primary contact person for this type of facility?

Building a good relationship with your local health department official from the beginning can be beneficial. They are the ones who will ultimately approve your center, and educating them about float tanks can help them make informed decisions that are appropriate for your business. We find that sharing industry standards, such as the North American Float Tank Standards, and CDC recommendations from the MAHC, can be very helpful in these discussions. For example, Health Department approval for float tanks provides more advice on working with your health department.

Utilizing Industry Resources

The Floatation Tank Association (FTA) is an invaluable resource for float center operators seeking regulatory information. They maintain a section on their website dedicated to standards and regulations, which includes links to various state and local codes they have identified. This is a great starting point, as they have already done much of the legwork in compiling information for different areas. The FTA also provides access to their North American Float Tank Standards, which can be shared with health departments as a reference for best practices.

We recommend checking the FTA's website regularly, as they encourage community members to submit updated codes, helping to keep their database current. While the FTA lists states like Connecticut, Illinois, Missouri, New Mexico, Wisconsin, and many others, it is important to remember that these are starting points, and direct verification with your local health department is always necessary. Utilizing resources like Floatation Tank Association standards and CDC recommendations for floatation tanks can provide a strong foundation for your regulatory discussions. By leveraging these industry resources, you can approach the regulatory process with more confidence and a clearer understanding of what is required.

For homeowners considering a residential install rather than a commercial buildout, our Home Float Tank Cost in 2026: Setup, Salt, and Maintenance Reality breaks down the construction, electrical, and plumbing realities at the home scale.

Frequently Asked Questions

Is there a national code for float tanks in the US?

No, there is no single large national pool code in the United States or Canada that specifically dictates float tank regulations. Instead, almost all pool rules and regulations are decided at the state or provincial level, with cities and counties often enforcing their own additional rules. This leads to a fractured system where regulations vary significantly from place to place.

What is the Floatation Tank Association (FTA) and what do they do?

The Floatation Tank Association (FTA) is an organization that develops best practices for operating float tanks. Their Sanitation and Regulations Committee officially updated the North American Float Tank Standards in 2025, which provides recommendations for quality, sanitation, and safety. The FTA also collects and shares information on local and state float tank regulations to help operators.

How are float tanks typically classified by health departments?

Health departments often classify float tanks as pools or spas, but usually with exceptions to account for their unique nature. However, due to a lack of specific float tank codes, some departments might classify them as tattoo parlors or hair salons. The CDC's 2023 Model Aquatic Health Code (MAHC) now includes specific recommendations for floatation tanks.

What temperature and solution density are common for float tanks?

Float tanks are typically maintained at a water temperature of approximately 92–96°F (33.3–35.6°C) to match skin temperature, creating a sense of thermal neutrality. The solution inside is a saturated magnesium sulfate (Epsom salt) solution with a specific gravity ranging from 1.23 to 1.3, which allows for effortless floating.

What disinfection methods are recommended for float tank water?

Float tank systems rarely use chlorine for water treatment. Instead, effective disinfection methods like ozone or ultraviolet (UV) are recommended to reduce the likelihood of pathogen survival. The water used in float tanks should always come from a potable source, and these disinfection methods are often combined with robust filtration systems for comprehensive sanitation.