Manufacturing, transportation, and construction worker supervisors need knowledge in the following areas:

• Administration and Management: How to run a business or group.
• Customer and Personal Service: Providing special services to customers based on their needs.
• English Language: The meaning and use of the English language.
• Production and Processing: How products are made and distributed.
• Mathematics: The rules and uses of numbers.
• Public Safety and Security: How to protect people and property.
• Personnel and Human Resources: The policies to hire and retain employees.
• Clerical: General office work such as filling and storing information.
• Mechanical: The design, use, and repair of machines and tools.
• Education and Training: The methods of teaching and learning.
• Computers and Electronics: Computer hardware and software.