North American Product Classification System (NAPCS) Canada [Provisional Version 0.1]

• 48-49 - Transportation and warehousing services
• 488003 - Rail transportation support, maintenance and repair services

488003.2 - Maintenance and repair of locomotives and rolling stock

Maintenance, repair, washing, cleaning, testing and inspection of locomotives and railway rolling stock. Includes cleaning and fumigation of freight cars, and janitorial services for interior cleaning of passenger cars.