Today NASSCO has grown its membership base to nearly 700 organizations, representing thousands of industry professionals. Members include contractors, manufacturers, suppliers, system owners, utilities, engineers, institutions of higher learning, and others aligned with our mission. While this is a diverse group, NASSCO members all care about one thing: increasing the awareness of aging underground infrastructure and providing viable solutions through education, technical resources, and industry advocacy.

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  • Guiding Principles

    NASSCO is guided by our Mission, Vision and Core Values.

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  • Membership Benefits

    Participate in dynamic committees, enjoy discounts, attend member-only events and more!

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  • Become a Member

    NASSCO membership is an excellent way to become educated, develop technical resources and advocate for the underground infrastructure industry.

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  • Committees

    Join other NASSCO members committed to setting standards, promoting trenchless technologies and protecting our communities through the proper assessment, maintenance and rehabilitation of buried asset

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  • Membership Directory

    Get to know “The Pack” of nearly 700 organizations including contractors, suppliers, consulting engineers, public agencies and others aligned with our mission.

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Our History

  • 1976

    NASSCO founded

  • 2002

    PACP® introduced

  • 2002

    EPA overturned ban on acrylamide grout

  • 2003

    Government regulations on explosion-proof

  • 2006

    MACP® introduced

  • 2008

    OSHA classified rehab work as maintenance

  • 2008

    ITCP® introduced

  • 2010

    LACP® introduced

  • 2011

    Government review of styrene as potential carcinogen

  • 2012

    PACP recertification introduced

  • 2018

    LACP/MACP recertification introduced

  • 2018

    Phase one study on CIPP emission safety

  • 2019

    Phase two study on CIPP emission safety

  • 2019

    ITCP-CIPP recertification introduced

  • 2020

    IAPMO amends UPC 715.3


“I joined NASSCO because of its reputation as an industry-leading organization that supports, educates and advocates for its members. Our underground infrastructure is of critical importance and we are grateful to have an association that promotes this sentiment and continues offering a forward-thinking approach.

NASSCO was one of the first associations that I became affiliated with and has been extremely beneficial to me and the entire AIMS organization. This industry is full of people who want to help one another and while the industry is extremely large, there is a lot of crossover. There is a constant commitment to improving best practices and standardization throughout the country and when performing inspection services in the few areas where NASSCO guidelines are not the standard, there are many more challenges and obstacles that our teams encounter.”

Steve Hudson, COO, AIMS Companies





NASSCO speaks for its members through appeals to congressional leaders to support infrastructure funding, by protecting trenchless technologies, and so much more.


From published reports to specification guidelines, NASSCO’s continually growing library of technical resources is the foundation to setting quality industry standards.

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