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NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION. LABORATORY TEST PROCEDURE. FOR. FMVSS Compressed Natural Gas. FMVSS ; Compressed natural gas fuel container integrity. ▫ Published September ▫ Set additional life cycle requirements for CNG. A report that recommends specific changes to the FMCSRs, FMVSS , North American Standard Inspection Procedures, and OOS criteria.

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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.

This standard applies to each passenger carmultipurpose passenger vehicletruckand bus that uses CNG as a motor fuel and to each container designed to store CNG as motor fuel on-board any motor vehicle.

Record time, temperature, and pressure readings at 30 second intervals, beginning when the fire is ignited and continuing until the pressure release device releases.

Natural Gas Systems | Federal Motor Carrier Safety Administration

NHTSA is planning on issuing two separate notices—an advanced notice of proposed rulemaking pertaining to rear impact guards and other safety strategies for single unit trucks, and a notice of proposed rulemaking focusing on rear impact guards on trailers and semitrailers.

By developing a robust record of the answers to these important questions, NHTSA expects to learn more about the progress of ADS and the ways in which the Agency can facilitate safe and efficient ADS testing and deployment for the benefit of individual consumers and the traveling public as a whole.

Summary This document denies a petition for rulemaking, submitted by Ms. The initial compliance date is September 1,with full phase in by September 1, Motor carriers operating such vehicles in interstate commerce would be required to maintain the speed limiting devices for the service life of the vehicle.

The potential effectiveness of such a tool to successfully aid an occupant’s safe exit from an immersed vehicle is also not known. This final rule is effective July 22, The effective fkvss of this final rule is November 29, If the pressure relief device releases before the end of the fifth minute after ignition, then the minimum temperature requirement does not apply.

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 material on the rear and sides of the vehicles to improve the conspicuity of the vehicles to other motorists.

The agency requests comments on this alternative strategy and other potential enhancements to the current body block test procedure.


We believe that, by requiring that ESC systems be installed on the rest of truck tractors and large buses, this fmbss rule will prevent 40 to 56 percent of untripped rollover crashes and 14 percent of loss-of-control crashes.

The Agency is making minor editorial changes to add revised delegations of authority from the Secretary of Transportation Secretarycorrect errors and omissions, and improve clarity. FMCSA withdraws the NPRM because commenters raised substantive issues which have led the Agency to conclude that it would fjvss inappropriate to move forward with a final rule based on the proposal.

NHTSA also proposes to limit the protrusions of emergency exit latches into emergency exit openings of windows to ensure they do not unduly hinder emergency egress.

Examples of changes needed are labeling of vehicles, height clearance requirements, inspection requirements, training requirements for mechanics, leak detection requirements, and conformance of the FMCSRs to National Fire Protection Association NFPA 52 e. The proposed FMVSS would also require each vehicle, as manufactured and sold, to have its device set to a speed not greater than a specified speed and to be equipped with means of reading the vehicle’s current speed setting and the two previous speed settings including the time and date the settings were changed through its On-Board Diagnostic connection.

NHTSA believes that V2V capability will not develop absent regulation, because there would not be any immediate safety benefits for consumers who are early adopters of V2V.

In addition, establishing roof strength and crush resistance requirements, to the extent warranted under the National Traffic and Motor Vehicle Safety Act, would fulfill a statutory provision of the Motorcoach Enhanced Safety Act of incorporated and passed as part of the Moving Ahead for Progress in the 21st Century Act.

Petitions for reconsideration of this final rule must be received by December 27, Title 49 published on Nov Summary This document responds to a petition for reconsideration of the agency’s November final rule making amendments to the procedures for determining which areas of a vehicle are designated seating positions and the procedure for determining the number of seating positions.

Comments must be received on or before March 24, His petition includes two requests: This document denies a petition for rulemaking, submitted by Ms.

Summary This document denies a rulemaking petition submitted by Mr. 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 vehicles.

This final rule increases harmonization with existing requirements in European regulations. This document denies a rulemaking petition submitted by Mr. In one test, position the center of the container over the center of the fire source.


This final rule is a deregulatory action. This document is the result of the agency’s assessment of other actions that could be taken to increase further the percentage of motorcyclists who wear helmets that comply with the helmet standard. It is the pressure for which the container has been constructed under normal conditions. Each CNG fuel container shall not leak when tested in accordance with S8. The comment period for the RFC was originally scheduled to end on March 5, Use a uniform fire source that is 1.

These comments will aid the Agency in setting research priorities as well as inform its subsequent actions to lay a path for innovative vehicle designs and technologies that feature ADSs. Comments must be received on or before May 9, Effective October 1, Background Many regions in the U. Beginning five minutes after the fire is ignited, maintain an average flame temperature of not less than degrees Celsius degrees Fahrenheit as determined by the average of the two thermocouples recording the highest temperatures over a 60 second interval:.

Toyota and the Auto Alliance Alliance. You should submit comments early enough to ensure that Docket Management receives them not later than July 30, These amendments will restore the side marker photometry requirements for motor vehicles under thirty feet in length that were in place prior to the final rule that reorganized the standard. Hoop wrapped means winding of filament in a substantially circumferential pattern over the cylindrical portion of the liner so that the filament does not transmit any significant stresses in a direction parallel to the cylinder longitudinal axis.

United States Code U.

49 CFR 571.304 – Standard No. 304; Compressed natural gas fuel container integrity.

The incorporation by reference of certain publications listed in the proposed rule is approved by the Director of the Federal Register as of May 22, We expect that, as a result of this joint rulemaking, virtually all of these vehicles would be limited to that speed. One exemption will allow ArcelorMittal’s employee-drivers with commercial driver’s licenses CDLs who transport steel coils between their production and shipping locations on public roads to work up to 16 hours per day and return to work with less than the mandatory 10 consecutive hours off duty.

Based on the petition, available information, and the agency’s analysis in progress, NHTSA has decided that the Petitioners’ request related to rear impact guards merits further consideration.

The Petitioners’ request to initiate rulemaking on rear impact guards on trailers and single unit trucks is granted on July 10,