"The 7th Edition of the Commercial Diver Training Manual continues to fill the gap between

learning through field experience and learning through entry-level commercial diver training.

Our commercial diving students and graduates have been well served since 2016 by the

author's meticulous and thorough approach to making vast field experiences and safety come

alive in the 6 th Edition, and once again in this revised 7th edition. It continues to be a leading

textbook in our training, due to its technical accuracy, current content, photos, and

illustrations.

Safety and efficiency are pinnacle traits that any successful working diver must learn in their

training and constantly apply in the field. Safety is not a simply a rule book, it is a state of

mind. Hal Lomax's approach to this and sharing his knowledge with all levels of divers has made our industry safer and advanced it entirely.

At the very core of commercial diver training are two essential objectives: Going up and down

in the water column safely and performing useful and effective work underwater. This textbook

continues to provide both objectives into a current and well written resource for the entire

industry. It remains a must for anyone's library involved in commercial diving."

Don Barthelmess, Professor Emeritus,

Santa Barbara City College Marine Diving Technology Department

In this newly updated 7th edition of his Commercial Diver Training Manual, Hal Lomax has once

again demonstrated his attention to detail and continued desire to make a maximum

contribution to the education and safety of the commercial diver and the commercial diving

industry.

Those "old salts" and "young studs" involved in commercial diving can only benefit from the

lessons contained in this manual; lessons learned the hard way from a man who is truly the

divers' friend. Hal continues his personal participation in our industry both topside and in the

water. He continues to train (and retrain) both young and old divers. He knows the ins and outs

as well as the fears and the exuberance of diving into the waters of our planet and, most

importantly, knows and writes down the guidelines necessary to promote and retain safe

commercial diving operations. In this manual he offers up tables, regulatory information, and

industry practice. A responsible diving contractor should necessarily know the contents of this

important work of dedication and should ensure that divers under his employ study and follow

this importance guidance.

To follow the guidance furnished in this important work will contribute to keeping you, the

diver, and you the employer, out of harm's way. In doing so, you will set an example for those

with whom you work or employ. The waters where underwater operations take place are, and

will remain, safe and welcoming as long as you plan the dive, work the plan, and continue to

become