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Are you a Contractor looking for a well-trained workforce? Learn how to become a union signatory.

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For over 100 years, the International Union of Operating Engineers, Local 66 has provided contractors with competent and qualified Operating Engineers and Operating Engineer Apprentices. Local No. 66 represents over 7,000 members in our jursidictional area, consisting of 33 counties in Western Pennsylvania and 3 counties in Ohio. These 7,000 brothers and sisters work in the field for contractors, private businesses and municipalities.


July 13, 2014 - District #5 & #6

Family Picnic

July 20, 2014 - All Districts

Golf Outing

July 27, 2014 - District #2

Summer Picnic


IUOE Local 66 member, Michael McGreevy’s daughter, Jenna created a website that won 1st place in the National History Day Contest in Pittsburgh.  The topic was Rights and Responsibilities.  Way to go Jenna!!!

Operating Engineers Local 66 New Training Facility

Universal Enrollment Services - TWIC Card

IUOE Re-affiliates with North America's Building Trades Union


June 30, 2014

Congratulations to Our Members Who Have Achieved Anniversary Milestones Serving in Local 66



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We are a sponsoring union of We Built This State. Please follow them for right-to-work information and anti-union legislation.