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Do the FMCSRs specify what type of horn is to be used on a CMV?

Document

Section § 393.81: Horn.

Guidance Q&A

Question 1: Do the FMCSRs specify what type of horn is to be used on a CMV?

Guidance: No.

Regulatory Topic: Type of horn on CMV
Effective Date: Sunday, May 4, 1997
Issued Date: Friday, April 4, 1997