High Pressure Black Seal License

NJ’s Top Program to Get a High Pressure Black Seal Boiler License

High Pressure Black Seal License Overview

The New Jersey Black Seal High Pressure license is required for boilers over 100 horsepower and more than 15 pounds pressure steam. If it’s a hot water heating system the boilers must be over 160 psi with a water temperature over 250° Fahrenheit. This classification of boiler operator’s license is a prerequisite for the NJ Blue Seal license eligibility.

License Name	License Type	Minimum Horsepower	Maximum Horsepower
Black Seal	High Pressure	100+	500

Requirements for High Pressure Black Seal License

The State of New Jersey mandates strict requirements for obtaining a Black Seal High Pressure Boiler License. Below outlines specific qualifications needed.

Experience Needed

To get a High Pressure Black Seal License, the New Jersey Department of Labor and Workforce Development requires 90 days of experience in a location or boiler plant that has a boiler that is over 100 horsepower or has over 4 million BTUs with a pressure greater than 15 psi for steam and greater than 160 PSI if it’s a hot water system. If you’re from out of state and operate a boiler that is over 100 horsepower or 4 million BTUs, you can qualify to become a licensed operator, provided that we can show your experience in the form of endorsement letters, which we can provide you a template for.

This is in accordance with New Jersey Administrative Code (N.J.A.C.) 12:90-8.6, which sets forth the eligibility requirements for obtaining a Black Seal High Pressure Boiler Operator’s License.

Want a NJ Black Seal License But Don’t Have Experience? We offer a Boiler Operator Training Program that provides you all the hands-on experience required by the State of New Jersey, giving you everything you need to get a NJ Black Seal License. Learn more about our Boiler Operator Training Program.

Endorsements Needed

The Black Seal High Pressure License requires you to provide an endorsement from a manager from your place of employment for your application. If your boilers are over 500 horsepower, you also need two licensed engineers’ signatures to endorse your application (personnel with a blue, red, or gold seal license). Provide our school with NJ state inspection certificates. These certificates can be found hanging in your boiler room framed behind glass. They contain all the information that we need to fill out your application properly. Navy personnel can provide us with your DD 214 and the experience of equipment found on ships that you served on. Our school can go forward and get you a license based on that experience.

NJ License Exam

The High Pressure Black Seal License state exam consists of a 50-question multiple-choice test, and the passing score is 66% and above.

Although our boiler 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

Our course curriculum covers the essential training required for the NJ Black Seal High Pressure License. Students progress from boiler fundamentals to advanced areas such as safety, steam systems, fuel and combustion, and feedwater management. Each module is structured to build technical knowledge and practical skills step by step, ensuring participants are fully prepared for both the state licensing exam and real-world boiler operation. The table below outlines each course module with a description of the training,

Course Module	Description of Training
Boiler Fundamentals & Heat Theory	Introduces the principles behind boiler operations, including heat transfer, system components, and regulatory codes. Students learn the core concepts that form the foundation for safe and efficient high pressure boiler operation.
Safety & Compliance in Boiler Operations	Focuses on safety protocols, operating controls, and compliance with New Jersey regulations. Topics include water level management, low-water cutoffs, and safe handling of high pressure steam systems.
Feedwater Systems & Water Chemistry	Emphasizes water treatment, feedwater monitoring, and blowdown procedures. Students learn how to maintain water quality to prevent corrosion, scaling, and system failures.
Steam Systems & Boiler Valves	Covers steam generation, distribution, and condensate recovery for efficiency. Instruction also highlights safety valves and boiler room valves, explaining their role in maintaining safe pressures and reliable operations.
Fuel, Combustion & System Sequences	Explores fuel types, combustion principles, and emissions compliance. Students also learn the sequence of operation, ensuring safe startup, shutdown, and performance control of high pressure boilers.
Principles & Exam Preparation	Reviews draft principles and ties together key concepts from the course. Students also prepare for the NJ Black Seal High Pressure exam with study strategies, practice guidance, and career insights.

Why The Training Center?

“The Training Center is a great school to obtain a Black Seal license. They are extremely helpful. I had a fantastic teacher who simplified the process and made it easy and interesting to understand.”

David Overs

“Great class, very easy to understand. If you’re thinking about getting a Black Seal license, you should take this course.”

Louis Costantino

“The Black Seal training class was great. Everything about it was well-organized and motivating. The whole team really knows their stuff, and I’d tell anyone to take this course. Thanks for getting me ready for my test. I now feel ready to pass.”

Chris Schultz

“This class was amazing! I had taken the Black Seal course. It was taught in a way that was easy to understand and covered all in just 6 weeks. I came into this class nervous but now I am comfortable and prepared.”

Vicky MacAllister

“I had a great experience taking the high pressure boiler class. Corey is a great instructor. He is very insightful and easy to learn from.”

Victor Dizly