Summary

Portrait of James L. Ryan James L. Ryan Navistar International Transportation Corp…

We note first that this case involves an agency's interpretation of a regulation and not a statute.
When faced with a problem of statutory construction, this Court shows great deference to the interpretation given the statute by the officers or agency charged with its administration.
. . . .
When the construction of an administrative regulation rather than a statute is in issue, deference is even more clearly in order.
Source: Wikisource

Portrait of James L. Ryan James L. Ryan Navistar International Transportation Corp…

Navistar responds that the regulations applicable to surface coating of automobiles and light duty trucks specifically exempt aftermarket body shops whereas the regulations applicable to surface coating of heavy duty trucks contain no such specific exclusion. The difference in language evidences an intent that the exemption governing surface coating of heavy duty trucks is not to be limited to the aftermarket, according to Navistar.
Source: Wikisource

Portrait of James L. Ryan James L. Ryan Navistar International Transportation Corp…

Navistar operates a truck assembly facility in Springfield, Ohio. [p284] Within the assembly plant are located ten "painting booths" which are used to paint the various parts which are manufactured or assembled at the plant. Following the painting, the parts are moved by conveyor into drying and baking ovens, with the exception of three painting booths which do not employ ovens. Six of the booths paint only metallic parts while four paint both metallic and other parts. Three of the booths are used to touch up paint which has been scratched or to paint areas that have been missed.
Source: Wikisource

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