3 PDH Credits All Accepted PDH courses that provide 3 PDH credits. Go back to all courses here. Advancing Systems and Technologies to Produce Cleaner Fuels – 3 PDH $30.00 Add to cart An Introduction to 400 Hz Electrical Distribution Systems – 3 PDH $30.00 Add to cart An Introduction to Activated Sludge Wastewater Treatment Plants – 3 PDH $30.00 Add to cart An Introduction to Boiler Control Systems – 3 PDH $30.00 Add to cart An Introduction to Cathodic Protection – 3 PDH $30.00 Add to cart An Introduction to Deep Foundations – 3 PDH $30.00 Add to cart An Introduction to Fire Protection Engineering – 3 PDH $30.00 Add to cart An Introduction to High Temperature Water Heating Plants – 3 PDH $30.00 Add to cart An Introduction to Operation and Maintenance of Auxiliary Power Systems – 3 PDH $30.00 Add to cart An Introduction to Sanitary Landfills – 3 PDH $30.00 Add to cart An Introduction to Soil Stabilization for Pavements – 3 PDH $30.00 Add to cart An Introduction to Solar Energy System Fundamentals – 3 PDH $30.00 Add to cart An Introduction to Treated Water Storage – 3 PDH $30.00 Add to cart An Introduction to Tropical Engineering – Concrete, Wood and Metals – 3 PDH $30.00 Add to cart Chemical Grouting – 3 PDH $30.00 Add to cart Circuit Control Devices – 3 PDH $30.00 Add to cart Management of Underground Storage Tanks – 3 PDH $30.00 Add to cart Louisiana I-20 Ramp Rehabilitation Using Precast Concrete Pavement – 3 PDH $30.00 Add to cart Seismic Design of Composite Steel Deck and Diaphragms – 3 PDH $30.00 Add to cart