Specialty parts include Accessories, Chemicals, Marketing, Performance, and Remanufactured parts. When dealing with specialty parts it is crucial to work with the Mopar Package Engineering Department. These specific parts are assigned to individual engineers who can aid in the process of package design, development, and approval. As with any prime source packaging, approval must be received from Package Engineering prior to the shipment of any parts. Specialty parts are subject to additional requirements. Marketing parts, accessories, and chemicals may require Mopar specific graphics and verbiage. Performance parts require special labeling.