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 Welcome to the International Union of Operating Engineers Local 478 website. Local 478 covers all of Connecticut. Operating Engineers operate and maintain heavy equipment such as cranes, loaders, backhoes, excavators, forklifts and bulldozers which helped build the roads, bridges, tunnels, buildings and infrastructure that keep our nation moving ahead.

By being the best, we have become the single source for the most qualified and most productive engineers available. With our training, experience and drive, we build value for our contractors. And we know how to do a job right the first time, every time. In exchange, we ensure that our members are treated fairly and viewed as part of the team. Our more than 3,000 members are part of the International Union of Operating Engineers, comprising a workforce of 400,000 throughout the United States and Canada.

My name is Garry Gyenizs and as of November 2020, I am the new Business Manager for Local 478. Coming into my new position during COVID, is certainly challenging however, I have every confidence that, as with past crises, we will match these pressing times with the dedication and determination that has characterized Local 478’s Membership and Leadership for over 110 years.

We welcome questions and all concerns from those interested in pursuing careers as a heavy equipment operator or mechanic.  If you wish to talk to a representative about joining our union, Local 478, please contact a Business Agent or the Referral Manager.  If you want to know what your rights are under the Connecticut Prevailing Wage Law, we have a section devoted to explaining the law and a listing of the prevailing wage rates. If you are interested in our training and apprenticeship programs, please visit that section of our site.

Contractors or other employers wishing to hire from our pool of qualified, trained, experienced members may contact any of our Business Agents listed in our staff directory. They will meet with you and explain all of the benefits of being able to hire your workers from referral hall, which can be reached by dialing 203-288-9261 ex. 242.


Garry Gyenizs
 Local 478 Business Manager

Why Join Local 478

Union heavy equipment operators are among the highest paid trades people in the construction industry, with superior benefits including family health, an annuity, a pension and supplemental unemployment benefits. Click for more...

Why Sign Up Your Company

Signatory employers have access to various benefits including: our state of the art training facility in Meriden CT, access to our State certified Heavy Equipment Operator and Mechanic Apprentice programs. Click for more...

Project Labor Agreements

Local 478 recognizes the value of a Project Labor Agreement (PLAs) or Community Workforce Agreements. These agreements are pre-negotiated, pre-hire collective bargaining agreements that determine working conditions and standards. Click for more...

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Life Events

How your coverage is affected when you experience certain “life events” and what you must do to make sure you get the most from your coverage.

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