Expert Engineers,
Efficient Solutions

Providing Design Services for Pressure Vessels and Cargo Tanks

NJP Engineering, LLC

Offering Quick Solutions

For Fabrication Problems

NJP Engineering LLC

Welcome to the website of NJP Engineering LLC, a mechanical engineering services company with a focus on the tank trailer and pressure vessel fabrication industries.

We provide design services for stationary and mobile pressure equipment (pressure vessels and cargo tanks).   This includes qualification of new designs, modifications, and cargo tank Design Certifying Engineering (DCE) services. Our goal is to provide practical solutions for various challenges regularly encountered by fabricators, tank trailer owners, manufacturers, and repair facilities. We strive to deliver exceptional value by helping you solve your problems as quickly and painlessly as possible.

Please peruse our website to learn more about us and what value we can bring to your situation. If you have any questions, please do not hesitate to email us!

News & Announcements


Clarification on 6″ Bumper (REPD) Clearance Requirement

9/22/14 - PHMSA has issued a memo clarifying the 6" clearance rule in 178.345-8(d)(1). Basically,...

Clarification (?) on DOT-412 Tanks Intended to Be Loaded by Vacuum

PHMSA has issued an interpretation on the regulatory requirements for a tank that is intended...

ATRI Releases Rollover Data

ATRI (the American Transportation Research Institute) released findings in early May related to its study...