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Hydraulic and Electric Brake Systems
This Standard applies to MPVs, trucks and buses with a GVWR greater than 7,716 lbs. (3,500 kg). It specifies requirements and testing procedures for hydraulic brakes, service brakes, emergency brakes, automatic brake adjusters and associated parking brake systems. Starting March 1, 1999, anti-lock brakes are required on new, single-unit trucks and buses with a GVWR greater than 10,000 lbs. (4,536 kg) and hydraulic brakes.
Applicability:
| Trucks & MPVs 10,000 GVWR or Less | Yes |
| Trucks More than 10,000 GVWR | Yes |
| Buses 10,000 GVWR or Less | Yes |
| Buses More than 10,000 GVWR | Yes |
| Trailers | No |