41 Educational Services-Namely, Providing Instruction in Methods of Testing for Welding Defects and in Methods of Nuclear Auditing; and Providing Instruction in Non-Destructive Methods of Testing the Mechanical and Structural Integrity of Materials, Semi-Finished Products, and Finished Products, Said Non-Destructive Testing Methods Utilizing Visual, Acoustic Emission, Ultrasonic, Liquid Penetrant, Radiographic, Electromagnetic and Leak Testing Techniques