AASHTO - Amer Assoc. of State Hwy & Transportation Officials

ADSC - International Assoc. of Foundation Drilling

AEM - Association of Equipment Manufacturers

ASCE - American Society of Civil Engineers

CONEXPO - Intl. Construction Exposition

DFI - Deep Foundations Institute

FHWA - Federal Highway Administration

FHWA - FHWA Geotechnical Division

GI - Geo Institute

OSHA - Occupational Safety & Health Administration

SEI - Structural Engineering Institute

NRECA - National Rural Electric Cooperative Association