TPS. Fuel System Integrity for CNG Fueled School Buses. TEST PROCEDURE. FMVSS S. REV. No. DATE. AMENDMENT. EFFECTIVE. Federal Motor Vehicle Safety Standards (FMVSS): Manufacturers are required FMVSS Fuel System Integrity of Compressed Natural Gas Vehicles (). Name: 49 CFR Part (FMVSS ). Description: Compressed Natural Gas Vehicles – Fuel System Integrity. Official Title: Federal Motor Vehicle Safety.

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Effective June 14,with optional early compliance as discussed below. Second, the Agency seeks comments on the use of existing statutory provisions and regulations to allow for the implementation of such a pilot program. Fmss is still evaluating the Petitioners’ request to improve side guards and front override guards and will issue a separate decision on those aspects of the petition at a later date.

InterRegs: 49 CFR Part (FMVSS ) | US – Federal

The report also explores technical, legal, security, and privacy issues related to the implementation of V2V. NHTSA is issuing this NPRM to propose a new Federal motor vehicle safety standard to enhance the rollover structural integrity of certain types of large buses generally, over-the-road buses of any weight and non-over-the-road buses with a gross vehicle weight rating GVWR fmmvss than 11, kilograms kg 26, pounds lb. The following conditions apply to fmvsz tests.

Each dummy shall be restrained only by means that are installed in the vehicle for protection at its seating position.

Federal Motor Vehicle Safety Standards (FMVSS) Guide

Marianne Karth and the Truck Safety Coalition Petitioners requesting that the agency improve the safety of rear impact underride guards on trailers and single unit trucks. The new standard would specify impactor testing of glazing material. The potential effectiveness of such a tool to successfully aid an occupant’s safe exit from an immersed vehicle is also not known.

The Agencies have also received a letter opposing any extension of the comment period. After consideration of the petitions and all supporting information, NHTSA has decided to grant the petitions for four of the discrete changes, deny one, and request comment in a separate document for the sixth proposed change. Each passenger carmultipurpose passenger vehicletruckand bus with a GVWR of 10, pounds or less that uses CNG as a motor fuel and that is manufactured on or after September 1, shall meet the requirements of S6, except S6.

For several years, NHTSA has researched forward collision avoidance and mitigation technology on heavy vehicles, including forward collision warning and automatic emergency braking systems.

Federal Motor Vehicle Safety Standards (FMVSS) Guide

The agency believes that requiring V2V communication capability in new light vehicles would facilitate the development and introduction of a number of advanced vehicle safety applications. The petitioner claims that the recommended changes to the relevant safety standards would allow vehicle manufacturers to better utilize the regenerator technology to increase vehicle efficiency.


The focus of this notification is rules that specifically relate to passenger cars, multipurpose passenger vehicles, trucks, buses, trailers, motorcycles, and motor vehicle equipment. Today’s ANPRM requests comment on NHTSA’s estimated cost and benefits of requirements for underride guards on single unit trucks, and for retroreflective fmbss on the rear and sides of the vehicles to improve the conspicuity of the vehicles to other motorists.

Petitions for reconsideration of this final rule must be received not later than August 7, Additionally, this final rule increases a manufacturer’s design flexibility while providing opportunity to decrease cost without compromising safety. A flame is applied to a polymer sample for each of the UL 94 tests; specimens are then observed for the extent and rate of fire propagation.

Relevant standards related to alternative vehicle design are. NHTSA also seeks comments on the research that would be needed to determine how to amend the FMVSS in order to remove such barriers, while retaining those existing safety requirements that will be needed and appropriate for those fmmvss.

The agency proposed these changes and, after a review of the comments received, has determined that these two revisions are appropriate and will not result in any degradation of motor vehicle safety.

The effective date of the final rule published at 81 FRDecember 14,is delayed until March 21, This standard also applies to school buses regardless of weight that use CNG as a motor fuel.

ESC systems in truck tractors and large buses are designed to reduce untripped rollovers and mitigate severe understeer or oversteer conditions that lead to loss of control by using automatic computer-controlled braking and reducing engine torque output. The requirements of S5 and S6 shall be met under the following conditions. You should submit your comments to ensure that Docket Management receives them not later than July 20, The original comment period closed September 21, In the absence of a requirement that each vehicle have a glass breaking tool, nothing prevents vehicle manufacturers from providing a tool or other means to allow vehicle evacuation during immersion.

Previously, the maximum allowable upward mounting angle was 15 degrees beyond vertical. Thompson has not identified a safety need to justify making changes he requested, and Mr. Petitions for reconsideration of this final rule must be received not later than December 14, This notification announces the docketing and availability of this research. The rear moving barrier test conditions are those specified in S8.


This final rule is effective September 27, Motor carriers operating such vehicles in interstate commerce would be required to maintain the speed limiting devices for the service life of the vehicle.

Prevost petitioned to revise the seat belt anchorage strength requirements for last row seats having no passenger seating behind them. The data available to the agency shows there is a great deal of uncertainty surrounding the actual number of occupants that may have died due solely to drowning while trapped in an immersed vehicle. The barrier and test vehicle are positioned so that at impact. The purpose of this standard is to reduce deaths and injuries occurring from fires that result from fuel leakage during and after motor vehicle crashes.

Inwe expect that, without this rule, about 34 percent of new truck tractors and 80 percent of new buses affected by this final rule would be equipped with ESC systems.

You should submit comments early enough to ensure that Docket Management receives them not later than February 22, Summary This document denies a petition for rulemaking, submitted by Ms.

Optional early compliance is permitted. Summary This document grants the petition for rulemaking submitted by the Truck Safety Coalition, the Center for Auto Safety, Advocates for Highway and Auto Safety, and Road Safe America on February 19,to establish a safety standard to require automatic forward collision avoidance and mitigation systems on certain heavy vehicles.

49 CFR 571.303 – Standard No. 303; Fuel system integrity of compressed natural gas vehicles.

First, NHTSA seeks comments on potential factors that should be considered in designing a pilot program for the safe on-road testing and deployment of vehicles with high and full driving automation and associated equipment. A particular vehicle need not meet further requirements after having been subjected to a single barrier crash test. In all cases, the Agency’s goal would be to ensure the maintenance of currently required levels of safety performance.

Thompson requested we revise the activation process for red and amber signal warning lamps on school buses to require a new intermediate step during which both colors are activated simultaneously and flash in an alternating pattern and that we decouple the process by which lamps transition to the red-only configuration from the opening of the bus entrance door.