ENGINEERING SERVICES-NAMELY, THE REVIEW OF OPERATIONAL ENERGY REQUIREMENTS, THE PROVISION OF CONSULTATION RELATIVE TO TECHNIQUES, PROCESS DESIGN, AND EQUIPMENT, AND THE PROVISION OF RECOMMENDATIONS RELATIVE TO THE USE OF CHEMICALS TO EFFECT PROPER UTILIZATION OF ENERGY REQUIRED FOR INDUSTRY IN SYSTEMS SUCH AS, BUT NOT LIMITED TO, FURNACES, COOLING SYSTEMS, BOILER SYSTEMS, AIR WASHER SYSTEMS, PROCESS HEAT EXCHANGERS, AND WASTE AND EFFLUENT TREATMENT SYSTEMS