NASTT is the North American Society for Trenchless Technology. It is an engineering society of individuals, public organizations and private companies with strong beliefs in the practical, social and environmental benefits of Trenchless Technology. It was founded and incorporated as a non-profit organization in June 1990.
NASTT is affiliated with the International Society for Trenchless Technology (ISTT) and shares the same basic mission; to advance the practice of trenchless technology for public benefit and to promote education, training, study and research. NASTT members are automatically affiliated with ISTT through NASTT membership.
The Western Chapter of NASTT (WESTT) promotes the NASTT mission within our western region of Arizona, California, Hawaii, Nevada, and New Mexico.
Our Mission…
Is to advance the science and practice of Trenchless
Technology for public benefit; to promote and
conduct education, training, study and research in
said science and practice for the public benefit;
and to make available information thereof to all
interested and concerned parties.

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