Navigating the Complex Landscape of 2024 EPA and OSHA Compliance for Ammonia Storage Tank Facilities

The regulatory environment for ammonia storage tank facilities has undergone significant changes in 2024, with both the Environmental Protection Agency (EPA) and the Occupational Safety and Health Administration (OSHA) implementing updated requirements that industrial facility operators must understand and implement to maintain compliance and ensure worker safety.

Major EPA Risk Management Program Updates for 2024

The EPA finalized major amendments to its Risk Management Plan regulation (RMP Rule) on February 27, 2024, with the rule becoming effective on May 10, 2024. EPA’s Risk Management Program rule requires all fertilizer facilities that handle, process, or store a quantity of 10,000 pounds or more of anhydrous ammonia to register with them and submit a Risk Management Plan.

One of the most significant changes involves natural hazard planning. The amendments require facilities to address and plan for natural hazards, including those caused or exacerbated by climate change, in their hazard reviews and process hazard analyses (PHAs). The amendments add a definition of “natural hazard,” and EPA provides the following examples: avalanche, coastal flooding, cold wave, drought, earthquake, hail, heat wave, hurricane, ice storm, landslide, lightning, riverine flooding, strong wind, tornado, tsunami, volcanic activity, wildfire, and winter weather.

New STAA, root cause analysis, third-party compliance audit, employee participation, emergency response public notification and exercise evaluation reports, and information availability provisions: Unless otherwise stated, three years after the May 10, 2024, effective date of the final rule. Update and resubmit RMPs to reflect new and revised data elements: four years after the May 10, 2024, effective date.

OSHA Compliance Requirements and Standards

Ammonia refrigeration is addressed in OSHA standards for general industry. This section highlights OSHA standards and documents related to ammonia refrigeration. Ammonia is considered a high health hazard because it is corrosive to the skin, eyes, and lungs. Exposure to 300 parts per million (ppm) is immediately dangerous to life and health.

Key OSHA requirements include proper storage protocols. If ammonia is stored inside, it is generally in a fire resistant structure, separated from work areas. It is important to keep storage areas dry and cool and away from steam pipes, heating devices, and tanks containing flammable liquids. Ammonia stored outside in an un-insulated tank must be painted with reflective paint, which controls rust or corrosion, and helps keep the temperature and internal pressure lower during hot weather.

The employer shall insure that unloading operations are performed by reliable persons properly instructed and given the authority to monitor careful compliance with all applicable procedures. Additionally, Provide training specific to the operation of a receiver and storage vessel. [29 CFR 1910.119(g)] Maintain proper oxygen and water content in vessels to avoid stress corrosion cracking (SCC) in welds of vessels.

The Role of Professional Tank Insulation Systems

Proper insulation is crucial for maintaining compliance with both EPA and OSHA requirements. Thermacon provides a safe solution to insulate and maintain the operating temperature required for ammonia, propane and butane tank applications. For ammonia and butane tanks, Thermacon offers cold storage systems that allow for cooling as low as minus 50 degrees.

When considering ammonia storage tank requirements, facility operators must ensure their systems meet stringent safety and operational standards. For over forty years, Thermacon has designed, engineered, manufactured and installed storage tank insulation products throughout the world. We have designed our products to satisfy the specific requirements of various industries, including the petrochemical, wastewater, energy, food and beverage, fire protection and water storage industries.

Enforcement and Penalties

The consequences of non-compliance can be severe. Following inspections in 2013 and 2017, EPA alleged Multistar failed to comply with Clean Air Act Section 112(r) requirements that facilities storing more than 10,000 pounds of anhydrous ammonia are properly designed, operated, and maintained to minimize the risk of an accidental release. Specifically, EPA alleged that Multistar failed to properly design its ammonia storage and distribution system, adequately maintain inspection and testing records on certain equipment, and develop and implement written operating procedures for certain aspects of its ammonia operations consistent with industry standards. In addition to requiring Multistar to pay a $135,000 penalty, the settlement requires the company to pay penalties if it violates the risk management program requirements at its ammonia storage and distribution facility, and provide compliance records and reports to EPA on a semi-annual basis.

Ongoing Compliance Requirements

The Risk Management Plan needs to be updated and resubmitted to the EPA at least once every 5 years and companies must perform a compliance audit at least once every 3 years. Regulated facilities revise and resubmit RMPs to EPA every five years.

For facilities operating ammonia storage systems, working with experienced professionals is essential. Since 1971, Thermacon has been a leading provider of tank insulation solutions all across the globe. Thermacon’s products are only of the highest quality, and we have actually carried this reputation for a number of years. We are completely committed to being the best company in the tank insulation industry.

The 2024 regulatory updates represent a significant shift toward more comprehensive safety and environmental protection measures for ammonia storage facilities. Industrial operators must take immediate action to assess their current compliance status, implement necessary upgrades, and establish ongoing monitoring programs to meet these enhanced requirements. Partnering with experienced insulation specialists and staying informed about evolving regulations will be critical for maintaining safe, compliant operations in this increasingly regulated environment.