The American Underground-Construction Association (AUA) is an organization of professionals involved in the planning, design, development, construction and use of underground facilities. The Association serves as:
    - an information clearinghouse on underground facilities and related issues for its
        members and for the general public
    - a network within the industry
    - a point of contact between the industry and the public.
    - AUA is the official United States Member-Nation Representative to the
        International Tunnelling Association.

Goals
The goals of the Association are to promote the development and use of underground facilities; to create greater understanding of the potential and benefit of underground use; to encourage appropriate policies and planning for successful underground use; to promote effective use of underground construction technology; and to advocate for the underground construction industry.

Membership
Membership in the Association is open to all with a professional interest in the underground construction industry. Rates and details on membership information as well as a listing of the AUA Membership Directory are both available. Online Membership Registration

AUA Divisions
Institute of Shaft Drilling Technology (ISDT): Professionals dedicated to the advancement of shaft construction through large diameter drilling techniques.