EPA 608 Universal Certification Mock Test 2025

The **Universal Certification** is the gold standard for HVAC professionals. To achieve it, a technician must pass all four sections of the EPA 608 exam: **Core, Type I, Type II, and Type III**. This interactive simulator provides a condensed 25-question cross-section of the actual 100-question exam.

How the Universal Exam is Structured

The official exam consists of four separate parts, each containing 25 questions. You must score at least 70% in each individual section to be certified in that category. If you pass all of them, you receive the Universal License.

Key Study Areas for Universal Candidates

• Core: Global warming, ozone depletion, and the Clean Air Act.
• Type I: Small appliances and system-dependent recovery.
• Type II: High-pressure split systems and leak trigger rates.
• Type III: Centrifugal chillers and low-pressure purge units.

Universal Technician Best Practices

To succeed on the job and the exam, remember that safety and documentation are paramount. Maintain recovery logs for all systems containing more than 50 pounds of refrigerant and always use DOT-approved cylinders.