On-Line Certification Exams

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DCDMA Products

Did you know that as a privilege of membership, NDA members can purchase gages through the NDA at a reduced rate? Please contact the NDA office at 877-632-4748 or e-mail gages@nda4u.com with a list of the gages you would like quoted.
NDA now accepts credit cards as payment for gage orders (a 5% processing fee will apply).

Shop NDA

NDA has developed several safety and training materials and other informational resources to benefit drilling industry professionals. These resources include the NDA Drilling Safety Guide, Driller's Manual, Safety Label Kits, Tailgate Safety Tips and more. Click Here to shop for NDA products on-line.

The National Drilling Association is a nonprofit trade association of contractors, manufacturers and affiliated members from the drilling industry representing the geotechnical, environmental and mineral exploration sectors of this industry. The NDA mission is to promote the use of professional drilling contractors and their methods.

One-Day Training Refresher for
Field Inspection of Geotechnical Site Investigations

October 26, 2015
Millersville, Maryland
Click here for information & registration

2015 NDA Convention
September 17-18

Turf Valley
Ellicott City, Maryland


Exhibitor Tables and Sponsorships Available
Click here for more information

NDA Safety Award Program

The program allows drilling contractors of similar size to compete for an award based on their incident rates. Safety Award recipients will be honored, each year, at the NDA Annual Convention.
Deadline for entries was June 30th.

Why I belong to the National Drilling Association:

"Membership in the NDA motivated Connelly & Associates to institute a solid safety plan combined with an enhanced driller training program. The NDA made it easy by providing the necessary tools to get started, such as the Driller's Safety Guide, Tailgate Safety Talks, and the Driller's Handbook. An even larger and immeasurable benefit is the opportunity to meet and work with some of the best people in the geotechnical industry, who are willing to share their knowledge and expertise in all aspects of contract drilling. We expect to be contributing members of the NDA for a long time."

Tom Connelly
Vice President

Our thanks to these Drill Bits magazine Advertisers:

Acker Drill Arthur J Gallagher BaroidCME GeoprobeHoffman Diamond Mobile DrillSonic Drill

Thank you to these 2015 NDA Convention Sponsors:

Thank you to these 2015 NDA Convention Exhibitors:


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