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Anhydrous Ammonia

35 minutesENHazardous Materials & HAZWOPER29 CFR 1910.111 (Anhydrous Ammonia), 29 CFR 1910.119 (PSM), 40 CFR Part 68 (EPA RMP)
Quick Answer

Anhydrous Ammonia Safety is a 35-minute online course that covers the hazards, safe handling procedures, and emergency response protocols for anhydrous ammonia (NH3) as regulated under OSHA's 29 CFR 1910.111 and the Process Safety Management standard at 29 CFR 1910.119. It is designed for workers in agriculture, refrigeration, water treatment, and industrial manufacturing, and includes a downloadable certificate of completion.

Course Overview

Anhydrous ammonia is one of the most widely used industrial chemicals in the United States, with applications in agriculture as a fertilizer, in industrial refrigeration systems, and in water and wastewater treatment. It is also one of the most dangerous - NH3 is classified as an immediately dangerous to life or health (IDLH) substance at just 300 ppm, and uncontrolled releases have caused multiple fatalities in recent years. OSHA regulates anhydrous ammonia storage and handling under 29 CFR 1910.111, and facilities with more than 10,000 pounds of ammonia on-site are subject to the Process Safety Management (PSM) standard at 29 CFR 1910.119 and EPA's Risk Management Program under 40 CFR Part 68.

This course trains your employees on the physical and health hazards of anhydrous ammonia, safe handling and transfer procedures, proper use of personal protective equipment, emergency response to leaks and releases, and the regulatory requirements that apply to ammonia systems. Your team will learn to recognize the warning signs of equipment failure, understand the critical importance of proper ventilation and detection systems, and respond effectively if an uncontrolled release occurs.

What You'll Learn

  • Physical and health hazards of anhydrous ammonia including toxicity, corrosivity, and vapor behavior
  • OSHA requirements for ammonia storage and handling under 29 CFR 1910.111
  • Process Safety Management (PSM) requirements for facilities above the 10,000-pound threshold
  • Safe transfer and loading procedures including required safety equipment and attendant requirements
  • Personal protective equipment selection including respiratory protection for ammonia exposure
  • Emergency response procedures for ammonia leaks, spills, and uncontrolled releases
  • Detection and alarm systems for monitoring ammonia concentrations in the workplace
  • First aid and decontamination procedures for ammonia exposure incidents

Who Needs This Training

  • Agricultural workers and supervisors who handle anhydrous ammonia for fertilizer application
  • Refrigeration system operators and maintenance technicians at cold storage and food processing facilities
  • Water and wastewater treatment plant operators who use ammonia for disinfection
  • Chemical plant workers in ammonia production, storage, or distribution operations
  • Emergency response team members responsible for ammonia release response
  • Facility managers responsible for PSM compliance at sites with ammonia systems

Regulatory Background

OSHA's anhydrous ammonia standard at 29 CFR 1910.111 establishes requirements for the design, construction, installation, and operation of ammonia systems, including stationary storage containers, portable containers, and transfer equipment. Facilities that store 10,000 pounds or more of anhydrous ammonia are also subject to OSHA's Process Safety Management standard at 29 CFR 1910.119, which requires hazard analyses, written operating procedures, employee training, and incident investigation. The EPA's Risk Management Program under 40 CFR Part 68 imposes parallel requirements. OSHA has issued multiple Safety and Health Information Bulletins addressing ammonia-related incidents, including uncontrolled releases during transfer operations at loading stations. Serious violations of 1910.111 or 1910.119 carry penalties of up to $16,550 per violation, while willful violations can reach $165,514. Given the IDLH nature of ammonia at 300 ppm and the potential for mass-casualty events from large releases, enforcement actions involving ammonia facilities often result in significant penalty assessments.

Frequently Asked Questions

Anhydrous ammonia is classified as immediately dangerous to life or health (IDLH) at 300 parts per million (ppm). OSHA's permissible exposure limit (PEL) is 50 ppm as an 8-hour time-weighted average under 29 CFR 1910.1000. Even at concentrations well below the IDLH level, ammonia can cause severe irritation to the eyes, skin, and respiratory tract. Employers must ensure adequate ventilation, detection systems, and respiratory protection to keep exposures below the PEL.
A facility triggers PSM requirements under 29 CFR 1910.119 when it has 10,000 pounds or more of anhydrous ammonia in a process. This includes many industrial refrigeration facilities, agricultural supply operations, and chemical manufacturing plants. PSM requirements include process hazard analysis, written operating procedures, employee training, mechanical integrity programs, management of change procedures, and incident investigation.
Workers handling anhydrous ammonia should wear chemical splash goggles or a full-face shield, chemical-resistant gloves rated for ammonia, long-sleeved clothing, and rubber boots. In areas where ammonia concentrations may exceed the PEL of 50 ppm, appropriate respiratory protection is required under 29 CFR 1910.134. For emergency response or high-concentration exposure scenarios, a self-contained breathing apparatus (SCBA) or supplied air respirator is required because air-purifying respirators are not adequate at IDLH concentrations.
Yes. Under 29 CFR 1910.111(b)(12)(ii), a qualified attendant must be present during the transfer of anhydrous ammonia. The attendant must be trained in emergency procedures and have immediate access to emergency shutoff controls. OSHA has issued specific guidance on this requirement through Safety and Health Information Bulletins following incidents where unattended transfers resulted in uncontrolled releases.
The EPA's Risk Management Program under 40 CFR Part 68 applies to facilities with more than 10,000 pounds of anhydrous ammonia. Covered facilities must develop a Risk Management Plan (RMP) that includes a hazard assessment, prevention program, and emergency response program. The RMP must be updated at least every five years and submitted to the EPA. Facilities are classified into Program 1, 2, or 3 based on their complexity and accident history, with Program 3 facilities facing the most stringent requirements.
$29.95
per person
Volume Pricing
Team Size Price per Person
1 - 9$29.95
10 - 24$23.95
25 - 49$21.55
50 - 99$17.50
Subtotal $29.95

Certificate of completion included. Downloadable upon passing the final assessment.

$29.95
per person