DOT Lookup Search Level III DOT Groups Within 63 - MECHANICS AND MACHINERY REPAIRERS Back to DOT Divisions Within 6 630 general industry mechanics and repairers 631 powerplant mechanics and repairers 632 ordnance and accessories mechanics and repairers 633 business and commercial machine repairers 637 utilities service mechanics and repairers 638 miscellaneous occupations in machine installation and repair 639 mechanics and machinery repairers, n.e.c.

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