---
kind: "section"
citation: "49 C.F.R. § 393.89"
title: "49"
number: "393.89"
heading: "Buses, driveshaft protection."
url: "https://uscodex.org/cfr/49/393.89"
---

# §393.89. Buses, driveshaft protection.


Any driveshaft extending lengthways under the floor of the passenger compartment of a bus shall be protected by means of at least one guard or bracket at that end of the shaft which is provided with a sliding connection (spline or other such device) to prevent the whipping of the shaft in the event of failure thereof or of any of its component parts. A shaft contained within a torque tube shall not require any such device.


## Notes

### Amendments

[33 FR 19735, Dec. 25, 1968, as amended at 53 FR 49402, Dec. 7, 1988]

### Authority

Authority: 49 U.S.C. 31136, 31151, 31502; sec. 1041(b), Pub. L. 102-240, 105 Stat. 1914, 1993; secs. 5301 and 5524, Pub. L. 114-94, 129 Stat. 1312, 1543, 1560; and 49 CFR 1.87.

### Source

Source: 33 FR 19735, Dec. 25, 1968, unless otherwise noted.

### Amendments

[33 FR 19735, Dec. 25, 1968, as amended at 53 FR 49402, Dec. 7, 1988]