The usual and customary methods of performing the jobs functions require the following physical demands: significant lifting, carrying, pushing, and/or pulling some climbing and balancing some stooping, kneeling, crouching, and/or crawling and significant fine finger dexterity. KNOWLEDGE is required to perform basic math, including calculations using fractions, percents, and/or ratios; understand written procedures, write routine documents, and speak clearly; and solve practical problems.