Missouri industries, including agriculture, steel, automotive, electronics and everything in between play a massive role in the state’s economy. Agriculture is the number one industry in the state of Missouri with farmland accounting for 66% of the state’s total land use. Buildings take up a significant amount of Missouri land with some large cities composed of thousands of commercial and industrial buildings. Building Operator Certification (BOC) training can help building operators and technicians keep HVAC and other equipment performing optimally to maximize the building’s energy efficiency.