['CMV Parts and Maintenance']
['Brakes']
01/03/2025
...
Interpretations to Part 393 — Parts and accessories necessary for safe operation
Question 1: Are tractor protection valves required by §393.43(b), or may similar devices be used?
Guidance: No. Similar devices may be used provided the devices meet the performance requirements of §393.43(b).
['CMV Parts and Maintenance']
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