The National Highway Traffic Safety Administration has amended brake standards to require braking-in-a-curve performance testing for single-unit trucks and buses.
Manufacturers have been required to conduct the testing on tractors since 1995, when rules regarding anti-locking braking systems were finalized. But the agency delayed applying the rule to single-unit vehicles until it could gather more data.
NHTSA did drop an earlier proposal that would have required testing under fully loaded as well as lightly loaded conditions, noting that the loaded-to GVWR test offers little additional information.
The new rule is effective Oct. 10.
Details and discussion were published in the August 11 Federal Register, which can be accessed on the Internet at www.gpoaccess.gov.
Manufacturers have been required to conduct the testing on tractors since 1995, when rules regarding anti-locking braking systems were finalized. But the agency delayed applying the rule to single-unit vehicles until it could gather more data.
NHTSA did drop an earlier proposal that would have required testing under fully loaded as well as lightly loaded conditions, noting that the loaded-to GVWR test offers little additional information.
The new rule is effective Oct. 10.
Details and discussion were published in the August 11 Federal Register, which can be accessed on the Internet at www.gpoaccess.gov.
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