A method of identifying qualified contractors and technicians through testing and other requirements.

Some state agencies, for example, now certify underground storage tank installers. To qualify for certification, an individual may be required to: 1) Take a written test and achieve a score of a minimum number of points; 2) show evidence of experience in tank installation work; and 3) pay a certification fee.

IFCI offers a nationally recognized certification program adopted by some states.

See also Third-party certification.