18 Apr, 2026
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accessory part

customer-specified additional component(s) that are either mechanically or electronically connected to the vehicle or powertrain before (or after) delivery to the final customer “(e.g., custom floor mats, truck bed liners, wheel covers, sound system enhancements, sunroofs, spoilers, super-chargers, etc.)

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advanced product quality planning (APQP)

product quality planning process that supports development of a product or service that will satisfy customer requirements; APQP serves as a guide in the development process and also a standard way to share results between organizations and their customers; APQP covers design robustness, design testing and specification compliance, production process design, quality inspection standards, process […]

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aftermarket part

replacement part(s) not procured or released by an OEM for service part applications, which may or may not be produced to original equipment specifications.

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authorization

documented permission for a person(s) specifying rights and responsibilities related to giving or denying permissions or sanctions within an organization. Source: IATF (https://www.iatfglobaloversight.org/)