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Frederic Hartwell

Frederic P. Hartwell is a working electrician, President of Hartwell Electrical Services, Inc., and has been certified by the International Association of Electrical Inspectors as a Certified Master Electrical Inspector. He is the senior member of NEC CMP 9. Mr. Hartwell is coauthor of McGraw-Hill's American Electricians' Handbook, 15th, 16th, and 17th Editions.