Packaging and filling machine operators need knowledge in the following areas:

• Production and Processing: How products are made and distributed.
• Mechanical: The design, use, and repair of machines and tools.
• Public Safety and Security: How to protect people and property.
• Education and Training: The methods of teaching and learning.
• English Language: The meaning and use of the English language.
• Customer and Personal Service: Providing special services to customers based on their needs.
• Mathematics: The rules and uses of numbers.