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Browse 1,000 rules and proposed rules from the Federal Register.
1,000
Total Regulations
Showing 541–570 of 1,000
Page 19 / 34
The FAA is adopting a new airworthiness directive (AD) for all Safran Helicopter Engines, S.A. (Safran) Model ARRIUS 2B2 engines. This AD was prompted by a manufacturer review of collected data from in- service engines that indicated the preference injector may clog over time caused by fuel coking, which decreases the permeability of the preference injector. This AD requires initial and repetitive non- extinguishing tests for engine flameout and replacement of the preference injector if necessary, a one-time modification (software upgrade) of the electronic engine control unit (EECU) and, for certain engines, repetitive replacements of the preference injector. The FAA is issuing this AD to address the unsafe condition on these products.
This notice announces that NHTSA will not take enforcement action against regulated entities for failing to comply with Federal Motor Vehicle Safety Standard (FMVSS) No. 213a, Child restraint systems--side impact protection until the publication of any final rule finalizing NHTSA's May 30, 2025 proposal.
The FAA is adopting a new airworthiness directive (AD) for certain Airbus Helicopters Deutschland GmbH Model EC135P1, EC135P2, EC135P2+, EC135P3, EC135T1, EC135T2, EC135T2+, EC135T3, and EC635T2+ helicopters. This AD was prompted by a report of a loss of the tail rotor controls due to a broken control rod of the yaw actuator. This AD requires visual inspection of the ball pivot, fluorescent penetrant inspection of the control rod, visual inspection and measurement of certain parts of the yaw actuator assembly, and depending on the results of these inspections, corrective actions. This AD also prohibits installing an affected part unless it is a serviceable part and certain requirements are met. The FAA is issuing this AD to address the unsafe condition on these products.
The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model H160-B helicopters. This AD was prompted by occurrences of premature in-service degradation of the main rotor swashplate assembly (swashplate) bearing. This AD requires repetitively inspecting the swashplate bearing for the presence of grease, and depending on the inspection results, performing corrective actions. This AD requires performing certain operational checks, downloading and analyzing certain data, and, depending on the results of the operational checks, further corrective actions. This AD also requires repetitively performing one flight under specific conditions. Additionally, this AD requires inspecting grease on the swashplate bearing and, depending on the inspection results, applying a certain grease or replacing the grease. This AD allows installing certain part- numbered swashplate bearings provided certain requirements are met. The FAA is issuing this AD to address the unsafe condition on these products.
The FAA proposes to adopt a new airworthiness directive (AD) for all Bombardier, Inc., Model BD-100-1A10 airplanes. This proposed AD was prompted by a report that some parts of horizontal stabilizer trim actuators (HSTAs) that were meant to be replaced through a required overhaul were not replaced and were instead reinstalled on the HSTAs. This proposed AD would require verification of the HSTA serial number, and, if applicable, replacement of the HSTA. This proposed AD would also prohibit the installation of affected parts under certain conditions. The FAA is proposing this AD to address the unsafe condition on these products.
FRA proposes to amend its locomotive safety regulations to expand the maximum permitted variation in diameter for locomotive wheel sets using alternating current technology, in response to a Class I railroad's May 2019 petition for rulemaking and innovations in traction motor control.
FRA proposes to allow railroads to use three-dimensional virtual simulation to satisfy the hands-on portion of periodic refresher training under FRA's brake system training requirements, consistent with waivers FRA has granted to date. FRA has found that such virtual training provides employees with randomized scenarios that may not be readily available for hands-on training and real-time feedback on performance of duties.
FRA proposes to amend its safety standards related to the use of the locomotive horn to clarify that no Federal regulation requires a railroad to sound a locomotive horn because of the presence of a passenger station. The proposed rule would clarify that a railroad has discretion to determine policies for sounding a locomotive horn at a passenger station through railroad operating rules. The proposed rule would also provide that if a railroad decides to sound a locomotive horn at a passenger station, the minimum sound level requirements in FRA's Railroad Locomotive Safety Standards would not apply to the sound produced by the horn.
This rule makes administrative updates to FRA's passenger train emergency preparedness regulations, including updating addresses in those regulations.
FRA is removing one requirement from its regulations governing positive train control (PTC) systems. This rule repeals a redundant regulatory requirement for railroads to file a Report of PTC System Performance (Form FRA F 6180.152) biannually, as the Passenger Rail Expansion and Rail Safety Act of 2021 requires railroads to submit that exact report to FRA quarterly.
This rulemaking revises FTA's major capital investment projects regulation to remove Appendix A, which provided outdated descriptions of the measures used for the evaluation of Capital Investment Grant (CIG) projects. This rulemaking also adopts minor conforming changes to reflect the removal of the Appendix.
This rule makes administrative updates to FRA's railroad safety appliance standards regulations, including updating addresses in those regulations.
This rule makes administrative updates to FRA's locomotive cab occupational safety and health regulations, including updating addresses in those regulations.
This rule makes administrative updates to FRA's railroad communications regulations, including updating addresses in those regulations.
FTA is proposing changes to the reporting requirements for the Public Transportation Safety Certification Training Program (PTSCTP). The proposed revisions would reduce reporting burdens for rail transit agencies and State Safety Oversight Agencies (SSOA).
In this action, the Federal Transit Administration (FTA) seeks to reduce the regulatory burden on State Safety Oversight Agencies (SSOAs) in conducting oversight of the Roadway Worker Protection (RWP) programs within the jurisdiction of a State. FTA proposes to extend the time period for reporting RWP programs to FTA and to allow SSOAs to complete annual audits simultaneously with other required audits.
This rule makes administrative updates to FRA's use of locomotive horns at public highway-rail grade crossings regulations, including updating addresses in those regulations.
This rule makes administrative updates to FRA's railroad locomotive safety standards regulations, including updating addresses in those regulations.
This rule makes administrative updates to FRA's steam locomotive inspection and maintenance standards regulations, including updating addresses in those regulations.
This rulemaking rescinds the FTA regulation on Transportation for Elderly and Handicapped Persons, as FTA finds that the regulation is obsolete and unnecessary.
The Federal Transit Administration (FTA) is revising its regulations governing school bus operations to update outdated information and harmonize the regulation with current statutory language and existing practice.
FTA is amending the regulations that govern the provision of charter service by recipients of Federal financial assistance. This final rule removes the Federal financial assistance programs listed in an appendix and the guidance in additional appendices and makes non- substantive technical edits throughout to remove outdated citations and provide clarity.
This rulemaking revises FTA's Transit Asset Management (TAM) regulation to remove the initial TAM Plan implementation deadline, as this deadline has passed.
The Federal Transit Administration (FTA) is revising its regulations on the agency's organization, functions, and procedures to update outdated information and increase clarity.
This rule makes administrative updates to FRA's safety glazing standards regulations, including updating addresses in those regulations.
The FAA proposes to supersede airworthiness directive (AD) 2024-09-02, which applies to all Leonardo S.p.a. Model AW169 helicopters. AD 2024-09-02 requires replacing certain aft float assemblies or, as an alternative, deactivating the emergency flotation system (EFS). AD 2024-09-02 also prohibits the installation of certain forward and aft float assemblies. Since the FAA issued AD 2024-09-02, the FAA has determined that replacing additional forward float and aft float life raft assemblies (also referred to as forward and aft float assemblies) is necessary. This proposed AD would retain all actions of AD 2024-09-02 and would also require replacing certain forward and aft float assemblies within 24 months or during the next accomplishment of a maintenance task. The FAA is proposing this AD to address the unsafe condition on these products.
This rule makes administrative updates to FRA's rear end marking device regulations, including updating addresses in those regulations.
This rule makes administrative updates to FRA's railroad accidents/incidents: reports classification, and investigations reporting regulations, including updating addresses in those regulations.
This rule makes administrative updates to FRA's reflectorization regulations, including updating addresses in those regulations.
This rule makes administrative updates to FRA's passenger train employee hours of service and recordkeeping regulations, including updating addresses in those regulations.