Inspection, tightened

Inspection in accordance with a sampling plan that has stricter acceptance criteria than those used in normal inspection. Tightened inspection is used in some inspection systems as a protective measure when the level of submitted quality is sufficiently poor. It is expected the higher rate of rejections will lead suppliers to improve the quality of submitted product. Note: The criteria for determining when quality is "sufficiently poor" must be defined in objective terms for any given inspection system.