Quality Control Inspectors

Summary

What Quality Control Inspectors Do About this section

Quality control inspectors remove or discard all products and equipment that fail to meet specifications.

Quality control inspectors examine products and materials for defects or deviations from specifications.

Duties

Quality control inspectors typically do the following:

• Read blueprints and specifications
• Monitor operations to ensure that they meet production standards
• Recommend adjustments to the assembly or production process
• Inspect, test, or measure materials
• Measure products with calipers, gauges, or micrometers
• Operate electronic inspection equipment and software
• Accept or reject finished items
• Remove all products and materials that fail to meet specifications
• Report inspection and test data such as weights, temperatures, grades, moisture content, and quantities inspected

Quality control inspectors, also called testers, sorters, samplers, and weighers, monitor nearly all manufactured products to ensure that they meet specified standards. Job duties vary across the manufacturing industries in which most of these inspectors work, which include foods, glassware, motor vehicles, electronic components, and structural steel.

Quality control workers use a variety of tools. Although some still use hand-held measuring devices, such as calipers and alignment gauges, workers more commonly operate electronic inspection equipment, such as coordinate-measuring machines (CMMs) and three-dimensional (3D) scanners. Inspectors testing electrical devices may use voltmeters, ammeters, and ohmmeters to test potential difference, current flow, and resistance, respectively.

Quality control workers record the results of their inspections through test reports. When they find defects, inspectors notify supervisors and help to analyze and correct production problems.

Some manufacturers have automated inspection processes, with advanced vision inspection systems installed at one or several production points. Inspectors monitoring these automated systems check equipment, review output, and conduct random product checks.

The following are examples of types of quality control inspectors:

Materials inspectors check production materials by sight, sound, or feel to locate imperfections such as cuts, scratches, missing pieces, or crooked seams. Materials inspectors also may use devices such as infrared microscopes to analyze plastic, rubber, and other substances and to look for deterioration or defects.

Mechanical inspectors generally verify that parts fit, move correctly, and are properly lubricated. They may check the pressure of gases and the level of liquids, test the flow of electricity, and conduct test runs to ensure that machines run properly.

Work Environment About this section

Quality control inspectors may be required to stand for long periods of time or lift heavy objects.

Quality control inspectors held about 595,500 jobs in 2023. The largest employers of quality control inspectors were as follows:

Inspectors may be required to stand for long periods and may have to lift heavy items.

Injuries and Illnesses

Some quality control inspectors are exposed to loud noises, moving mechanical parts, and hazardous contaminants, such as airborne particles that irritate the eyes and skin. Workers typically wear protective eyewear, ear plugs, and appropriate clothing to help protect themselves from injury.

Work Schedules

Most quality control inspectors work full time. Some inspectors work evenings, overnight, or weekend shifts. Shift assignments may be based on seniority. Overtime may be required to meet production deadlines.

How to Become a Quality Control Inspector About this section

Quality control inspectors usually receive up to one year of on-the-job training.

Quality control inspectors typically need a high school diploma to enter the occupation and receive on-the-job training once employed.

Education

Quality control inspectors typically need a high school diploma for entry-level jobs. Postsecondary certificate programs are available for instruction on quality control concepts, such as inspection planning and auditing. Students in these programs also gain familiarity with tools and technologies that quality control inspectors use.

Some employers require or prefer to hire candidates who have an associate’s or bachelor’s degree in a field such as quality control management or engineering.

Training

Workers typically receive on-the-job training that lasts more than 1 month and up to 1 year.

In some industries, such as automobile and aerospace manufacturing, inspectors train for the occupation in an apprenticeship program. Apprentices typically receive paid on-the-job training and instruction. Requirements for entering these programs, which are typically sponsored by trade associations or businesses, may include having a high school diploma, related work experience, or relevant licenses.

Training for new inspectors may cover the use of special meters, gauges, computers, and other instruments; quality control techniques such as Six Sigma; blueprint reading; safety; and reporting requirements.

Licenses, Certifications, and Registrations

The American Society for Quality (ASQ) offers various certifications, including a designation for Certified Quality Inspector (CQI), and various levels of Six Sigma certifications. Although optional, certification may demonstrate a level of competence and professionalism that makes candidates more attractive to employers. It also may increase opportunities for advancement. Requirements for certification generally include a certain number of years of experience in the field and passing an exam.

Important Qualities

Detail oriented. Quality control inspectors must be able to focus to notice flaws or deficiencies in finished products or materials. 

Math skills. Knowledge of basic math is important for measuring, calibrating, and calculating specifications in quality control testing.

Mechanical skills. Quality control inspectors use tools and machinery when testing products.

Physical stamina. Some quality control inspectors must stand for long periods on the job.

Physical strength. Quality control inspectors may be required to lift or maneuver heavy production materials or finished products.

Technical skills. To ensure that products and parts meet quality standards, inspectors must understand the relevant blueprints, technical documents, and manuals.

Pay About this section

The median annual wage for quality control inspectors was $47,460 in May 2024. The median wage is the wage at which half the workers in an occupation earned more than that amount and half earned less. The lowest 10 percent earned less than $34,590, and the highest 10 percent earned more than $75,510.

In May 2024, the median annual wages for quality control inspectors in the top industries in which they worked were as follows:

Most quality control inspectors work full time. Some inspectors work evenings, overnight, or weekend shifts. Shift assignments may be based on seniority. Overtime may be required to meet production deadlines.

Job Outlook About this section

Employment of quality control inspectors is projected to decline 3 percent from 2023 to 2033.

Despite declining employment, about 65,200 openings for quality control inspectors are projected each year, on average, over the decade. All of those openings are expected to result from the need to replace workers who transfer to other occupations or exit the labor force, such as to retire.

Employment

State & Area Data About this section

Occupational Employment and Wage Statistics (OEWS)

The Occupational Employment and Wage Statistics (OEWS) program produces employment and wage estimates annually for over 800 occupations. These estimates are available for the nation as a whole, for individual states, and for metropolitan and nonmetropolitan areas. The link below goes to OEWS data maps for employment and wages by state and area. Use the dropdown boxes to select an occupation.

• Occupational Employment and Wage Statistics (OEWS) Profiles

Projections Central

Occupational employment projections are developed for all states by Labor Market Information (LMI) or individual state Employment Projections offices. All state projections data are available at www.projectionscentral.org. Information on this site allows projected employment growth for an occupation to be compared among states or to be compared within one state. In addition, states may produce projections for areas; there are links to each state’s websites where these data may be retrieved.

CareerOneStop

CareerOneStop includes hundreds of occupational profiles with data available by state and metro area. There are links in the left-hand side menu to compare occupational employment by state and occupational wages by local area or metro area. There is also a salary info tool to search for wages by zip code.

Contacts for More Information About this section

For details about apprenticeships or other work opportunities in this occupation, contact the offices of the state employment service, the state apprenticeship agency, or local businesses that employ quality control inspectors. Apprenticeship information is available from the U.S. Department of Labor’s Apprenticeship program online or by phone at 1-877-872-5627. Visit Apprenticeship.gov to search for apprenticeship opportunities.

For more information about quality control inspectors, including certification, visit

American Society for Quality (ASQ)

For more information about quality control training, visit

International Society of Automation (ISA)

Quality Assurance Association (QAA)

O*NET

Inspectors, Testers, Sorters, Samplers, and Weighers