Blue Seal Refrigeration License

NJ’s Top Program to Get a Blue Seal 2-C Refrigeration Engineer License

Requirements for Blue Seal 2-C Refrigeration License

The New Jersey Department of Labor and Workforce Development mandates strict requirements for obtaining a Blue Seal 2-C Refrigeration Engineer License. Below outlines specific qualifications needed.

Experience Needed

The Blue Seal Refrigeration License is categorized into either toxic of non-toxic.

Requirements for Blue Seal Refrigeration Engineer 2-C Toxic

The Blue Seal 2-C toxic license is required for refrigeration systems that contain a flammable, or toxic refrigerant. The plant must have a total capacity of at least 24 tons and up to 65 tons.

Toxic (Group II) Refrigerants Include: R-123 and R-717 (Ammonia).

Requirements for Blue Seal Refrigeration Engineer 2-C Non-Toxic

The Blue Seal 2-C non-toxic license is not required to operate a plant with a non-toxic refrigerant. However, this license can be obtained if you work in a plant, with 6 months experience, and at least 250 tons capacity.

Non-Toxic Refrigerants: R-11, R-12, R22, and R134A.

See NJ code for Blue Seal (12:90-8.8).

Endorsements Needed

The Blue Seal Refrigeration License application will require a management endorsement along with two engineer endorsements. These are engineers who hold a valid Blue, Red, or Gold Seal license. Engineer endorsements are not required for non-toxic licenses.

The Blue Seal application also requires your refrigeration experience information, which can be found on your refrigeration certificates of inspection (COI) located in your plant. These are typically posted on the wall near your equipment or in your glass case.

NJ License Exam

The Blue Seal Refrigeration license exam consists of a 50 question multiple-choice test, and the passing score required is 70% and above.

Although our refrigeration license courses are fully online, the State of New Jersey requires all license tests be completed in person at a state-approved testing site.

NJ State Exam Sites

Course Curriculum and Topics

The Blue Seal Refrigeration Engineer License course is structured to provide both technical expertise and exam readiness. Students study refrigeration principles, safety practices, and system operations while preparing for the New Jersey licensing exam. The table below outlines each module and its training focus.

Course Module	Description of Training
Introduction & Resources	Provides a clear roadmap for navigating the course. Students learn how to use the online portal, access review materials, and organize their preparation for the state exam. Core study tools are introduced to build a strong foundation.
Refrigeration Fundamentals	Covers the core principles of refrigeration engineering, focusing on system components and the vapor compression refrigeration cycle. Students learn how refrigeration systems transfer energy, maintain efficiency, and provide cooling in commercial plants.
Refrigeration Math & Core Principles	Introduces Boyle’s Law, specific heat, and key refrigeration calculations. These lessons provide the mathematical foundation required for both field applications and the state exam.
Refrigerants & Safety Practices	Emphasizes the safe handling, reclaiming, and storage of refrigerants, including toxic types. Topics include primary and secondary refrigerants, superheat, and subcooling to ensure proper system performance and compliance with environmental regulations.
Equipment & Advanced Systems	Takes a deeper look at centrifugal chillers and various compressor types. Instruction highlights the importance of compression ratio and its impact on efficiency, reliability, and long-term system performance.
Exam Preparation & Final Review	This final module consolidates all refrigeration principles, safety practices, and system operations into a structured review. Students work through targeted practice questions and learn strategies for the licensing exam.

Why The Training Center?

“The Training Center goes above and beyond to get you ready for your state exams, thank you for everything.”

Roger Ventura

“The staff at The Training Center were wonderful in providing information and preparing us for the examination.”

Erick Mezzina

“Really great course! Instructors were knowledgeable and explained everything in a way that made it easy to understand.”

James Taua

“Amazing program and information. I feel confident using this company again for future certifications and licenses.”

Phil Preston

“Great program with knowledgeable instructors. I love the self-paced student learning portal. It makes it easy and convenient to hop online and study whenever you find the time.”

Rob Szymanek