Recommended Practices - SAE Mobilus

Items (7,548)

Aircraft Propulsion System Health Management Guide

9/25/2026

This SAE Aerospace Recommended Practice (ARP) addresses aeronautical Propulsion System Health Management. Aircraft propulsion systems are broader than gas turbine engines and include electric and hybrid propulsion systems. Furthermore, health management of auxiliary systems such as for thermal management of electric propulsion modules is also included in the scope. This document uses the term Engine Health Management (EHM) to include health management of propulsion systems and related equipment such as electric motors and heat exchangers for thermal management in an integrated power and propulsion system (IPPS). This keystone document gives a top-level view and addresses EHM description, benefits, and capabilities, and provides examples. This ARP purposely addresses a wide range of EHM architectures to demonstrate possible EHM design options. This ARP is not intended as a legal document and does not provide detailed implementation steps but does address potential benefits and general implementation issues. Other SAE documents (aerospace standards, aerospace recommended practices, and aerospace information reports) address specific component specifications, procedures, and “lessons learned.”

E-32 Aerospace Propulsion Systems Health Management

Flight Deck Layout and Facilities

ARP4101A (Current)

9/22/2026

This document recommends criteria for the layout and for the design, installation, and operation of flight deck facilities for transport aircraft.

S-7 Flight Deck Handling Qualities Stds for Trans Aircraft

Motorcycle Side Stand Retraction Test Procedure

J1578_202609 (Current)

9/21/2026

This test procedure provides a standard method for evaluating the side stand retraction performance of a side stand/motorcycle combination.

Motorcycle Technical Steering Committee

J3233_202609 (Current)

9/21/2026

This SAE Recommended Practice establishes harmonized test methods for measuring volatile organic compound (VOC) emissions from polyurethane foam materials used in automotive interior applications. This recommended practice complements SAE J2989 by providing standardized emission collection methods, analytical procedures, and reporting formats to ensure consistent and comparable results across different testing laboratories and organizations. The methods discussed in this recommended practice include micro-scale chambers, small-scale chambers, bag methods, thermal extraction techniques, and bottle methods for aldehyde determination. This standard addresses the unique challenges presented by polyurethane foam materials, including their high surface area, absorption capacity, and sensitivity to environmental conditions. The selection of the appropriate test method shall be primarily determined by customer requirements or OEM specifications, as these requirements often dictate the specific test protocol needed for material approval or compliance. When customer requirements are not specified, the selected method should be based on available laboratory capabilities, sample size constraints, testing timeline requirements, and the intended use of the results. This recommended practice provides guidance on the appropriate conditions and limitations for each method to ensure consistent and comparable results across different testing approaches. The standardization of these testing methodologies is essential for reducing the variability currently observed across the automotive industry. By providing clear guidance on specimen preparation, test conditions, analytical procedures, and reporting formats, this standard aims to facilitate meaningful comparison of results, reduce testing costs, and improve product development and quality control efforts. This recommended practice applies to both molded polyurethane foam components such as seating cushions and backrests, and slab stock foam materials used in automotive interior applications. The guidance in this document is intended to reduce ambiguity, improve reproducibility, and provide comparable results across different testing facilities.

Volatile Organic Compounds

Long-Stroke Air-Brake Actuator Marking

J1817_202609 (Current)

9/21/2026

This SAE Recommended Practice describes a marking system to distinguish long-stroke from standard stroke for service, parking, and combination air-brake actuators and components. Said actuators are used for applying cam-type foundation brakes by slack adjuster means.

Truck and Bus Brake Actuator Committee

Low Mu/Winter Driving Skill Certification

J3300/1_202609 (Current)

9/21/2026

This SAE Recommended Practice is intended to establish a procedure to certify the low mu/winter driving skill levels of professional drivers. This certification can be used by the individual driver to qualify their skills when seeking employment or other professional activity. These certification levels may also be used by test facilities or other organizations when seeking test or professional drivers of various skills. This document provides directions for obtaining certification through Probitas Authentication®1 and the low mu/winter driving skill examination requirements. This document is a supplement to SAE J3300, providing information specific to the low mu/winter driving skill certification and clarifying the application of the rules set forth in SAE J3300 to the low mu/winter driving certification. While the references, definitions, rules, and guidelines presented in SAE J3300, Sections 1 through 5 apply to the low mu/winter driving certification, they are not repeated in this document.

Driving Skills Standards Committee

Plain Spherical Bearing Radial and Axial Clearance Measurement

ARP5448/8B (Current)

9/21/2026

This test method provides a guidance for determining the total free play between the ball and outer ring of a spherical bearing when measured in both the radial and axial directions. Bearings covered by this test method include all plain spherical-type bearings, both self-lubricated (lined) and metal-to-metal.

ACBG Plain Bearing Committee

Taxonomy and Definitions for Terms Related to Driving Automation Systems for On-Road Motor Vehicles

J3016_202609 (Current)

9/20/2026

This document describes [motor] vehicle driving automation systems that perform part or all of the dynamic driving task (DDT) on a sustained basis. It provides a taxonomy with detailed definitions for levels of driving automation, ranging from no driving automation (Level 0) to automated driving under all conditions in which humans can drive, with human driving not needed (Level 5), in the context of [motor] vehicles (hereafter also referred to as “vehicle” or “vehicles”) and their operation on roadways: Level 0: No driving automation Level 1: Driver support for steering OR speed, with continual driver supervision necessary and driver intervention when needed Level 2: Driver support for steering AND speed, with continual driver supervision necessary and driver intervention when needed Level 3: Automated driving under defined conditions, with human driving needed following an alert or evident vehicle malfunction Level 4: Automated driving under defined conditions, with human driving not needed to mitigate risk Level 5: Automated driving under all conditions in which humans can drive, with human driving not needed. The simple level descriptors have been changed to improve understanding of the differences among levels, but these are NOT the definitions of the levels of driving automation. See the definitions of each automation level in Sections 4 and 5 for explanation of these changes. These level definitions, along with additional supporting terms and definitions provided herein, can be used to describe the full range of driving automation features equipped on [motor] vehicles in a functionally consistent and coherent manner. “On-road” refers to publicly accessible roadways (including parking areas and private campuses that permit public access) that collectively serve all road users, including cyclists, pedestrians, and users of vehicles with and without driving automation features. The levels apply to the driving automation feature(s) that are engaged in any given instance of on-road operation of an equipped vehicle. As such, although a given vehicle may be equipped with a driving automation system that is capable of delivering multiple driving automation features that perform at different levels, the level of driving automation exhibited in any given instance is determined by the feature(s) that are engaged. This document also refers to three primary actors in driving: the (human) user, the driving automation system, and other vehicle systems and components. These other vehicle systems and components (or the vehicle in general terms) do not include the driving automation system in this model, even though as a practical matter a driving automation system may actually share hardware and software components with other vehicle systems, such as a processing module(s) or operating code. The levels of driving automation are defined by reference to the specific role played by each of the three primary actors in performance of the DDT and/or DDT fallback. “Role” in this context refers to the expected role of a given primary actor, based on the design of the driving automation system in question and not necessarily to the actual performance of a given primary actor. For example, a driver who fails to monitor the roadway during engagement of a Level 1 adaptive cruise control (ACC) system still has the role of driver, even while they are neglecting it. Active safety systems, such as electronic stability control (ESC) and automatic emergency braking (AEB), and certain types of driver assistance systems, such as lane keeping assistance (LKA), are excluded from the scope of this driving automation taxonomy because they do not perform part or all of the DDT on a sustained basis, but rather provide momentary intervention during potentially hazardous situations. Due to the momentary nature of the actions of active safety systems, their intervention does not change or eliminate the role of the driver in performing part or all of the DDT, and thus are not considered to be driving automation, even though they perform automated functions. In addition, systems that inform, alert, or warn the driver about hazards in the driving environment are also outside the scope of this driving automation taxonomy, as they neither automate part or all of the DDT, nor change the driver’s role in performance of the DDT (see 8.13). It should be noted, however, that crash avoidance features, including intervention-type active safety systems, may be included in vehicles equipped with driving automation systems at any level. For automated driving system (ADS) features (i.e., Levels 3 to 5) that perform the entire DDT, crash mitigation and avoidance capability is part of ADS functionality (see also 8.13). Note that this document provides a taxonomy and definitions and is not a safety standard. The document is not intended to provide guidance for safe vehicle operation by the driving automation system.

On-Road Automated Driving (ORAD) Committee

Parking Brake Drawbar Pull Test Procedure - Truck and Bus

J1729_202609 (Current)

9/16/2026

This SAE Recommended Practice provides a test method and instructions for measuring performance of parking brakes on air- or hydraulic-braked vehicles equipped with in-wheel or drive-line parking brakes. This procedure applies to truck-tractors, trailers, trucks, and buses.

Truck and Bus Brake Systems Committee

Road Vehicles - Wheels for Commercial Vehicles and Multipurpose Passenger Vehicles - Fixing Nuts - Test Methods

J1965_202609 (Current)

9/16/2026

This SAE Recommended Practice applies to fasteners/fixing nuts as specified in SAE J694 and SAE J1835 used for disc wheels and demountable rim attachment respectively. Only the test methods necessary to ensure proper wheel or rim assembly are specified. Fasteners for less common and special applications are not included.

Truck and Bus Wheel Committee

Misfire Generator Functional Requirements

J2901_202609 (Current)

9/14/2026

The intent of the specification is to present a functional set of requirements which define the user and hardware interfaces while providing sufficient capability to meet the misfire patterns for compliance demonstration and engineering development. Throughout this requirement, any reference to “ignition or injector control signal” is used interchangeably to infer that the effected spark ignition engine’s ignition control signal or the compression ignition engine’s injector control signal is interrupted, timing phased, or directly passed by the misfire generator. For spark ignition engines, the misfire generator behaves as a spark-defeat device which induces misfires by inhibiting normal ignition coil discharge. It does so by monitoring the vehicle’s ignition timing signals and suspends ignition coil saturation for selected cylinder firing events. The misfire generator will thereby induce engine misfire in spark ignited gasoline internal combustion engines; including rotary engines. For compression ignition engines, the misfire generator behaves as a fuel injection-defeat device which induces misfire by inhibiting the normal fuel injection pulses. It does so by monitoring the injection pulses signal and suspending the injection pulses for selected cylinder firing events. The misfire generator will thereby induce engine misfire in compression ignition engines. This requirement assumes that the user has a fundamental understanding of misfire diagnostics as well as ignition controls. This requirement is not intended to be an introductory misfire guideline or interpretation of regulatory requirements.

Vehicle E E System Diagnostic Standards Committee

Definition of Pressure Surge Test and Measurement Methods for Receiver Aircraft

ARP1665B (Current)

9/11/2026

The test procedure applies to the refueling manifold system connecting the receiver aircraft fuel tanks to the refueling source fuel pump(s) for both ground and aerial refueling. The test procedure is intended to verify that the limit value for surge pressure specified for the receiver fuel system is not exceeded when refueling from a refueling source which meets the requirements of AS1284 (reference 2). This recommended practice is not directly applicable to surge pressure developed during operation of an aircraft fuel system, such as initiating or stopping engine fuel feed or fuel transfer within an aircraft, or the pressure surge produced when the fuel pumps are first started to fill an empty fuel manifold.

AE-5A Aerospace Fuel, Inerting and Lubrication Sys Committee

Preconditioned Air (PCA) Unit Air Quality, Humidity Management, and Cabin Connection

ARP6986 (Current)

9/11/2026

The provisions of this SAE Aerospace Recommended Practice (ARP) cover minimum performance requirements and design parameters for preconditioned air (PCA) devices supplying air to the aircraft cabin. It identifies the need for interim and future performance improvement for ground equipment delivery systems, to meet industry requirements for reducing airborne compounds or particulates (“source types”) in the aircraft cabin and flight deck. This ARP will guide SAE, IATA, airline operators, and airframe and PCA manufacturers to meet new requirements. This ARP defines: Minimum performance and maintenance requirements for filtration, hose assemblies, operations, and maintenance. Level of humidity supplied by the ground equipment to the aircraft cabin. Minimum performance and maintenance requirements for digital communication of cabin parameters between the cabin and the PCA. Installation of the sensor unit within the aircraft cabin. The data collected by these sensors is not intended to assess impacts on aircraft occupant health and shall not be used to make a finding of airworthiness.

AGE-3 Aircraft Ground Support Equipment Committee

Rolling Element Bearing No-Load Torque Test

ARP5483/1B (Current)

9/9/2026

This test method outlines the recommended procedure for performing the no-load rotational starting torque test on airframe rolling bearings. Bearings covered by this test method shall be antifriction ball bearings and spherical roller bearings.

ACBG Rolling Element Bearing Committee

Application Layer - Diagnostics

J1939-73_202609 (Current)

9/9/2026

SAE J1939-73 defines the SAE J1939 messages to accomplish diagnostic services and identifies the diagnostic connector to be used for the vehicle service tool interface. Diagnostic messages (DMs) provide the utility needed when the vehicle is being repaired. Diagnostic messages are also used during vehicle operation by the networked ECUs to allow them to report diagnostic information and self-compensate as appropriate, based on information received. Diagnostic messages include services such as periodically broadcasting active diagnostic trouble codes, identifying operator diagnostic lamp status, reading or clearing diagnostic trouble codes, reading or writing ECU memory, providing a security function, stopping/starting message broadcasts, reporting diagnostic readiness, monitoring engine parametric data, etc. California-, EPA-, or EU-regulated OBD requirements are satisfied with a subset of the specified connector and the defined messages.

Truck and Bus Control and Communications Network Committee

J3335_202609 (Current)

9/9/2026

This document provides a recommended test guideline for secondary sodium-ion cells used for propulsion of electric vehicles including battery electric vehicles (BEV), hybrid electric vehicles (HEV), and other similar propulsion applications (e.g., forklift trucks). The objective of this document is to define common test procedures covering electrical performance, mechanical safety performance, thermal safety performance, and electrical safety performance. The results of these procedures can be used for comparative purposes. Requirements for pass/fail criteria are not defined in this document but are to be defined by the users of the document.

Battery Standards Testing Committee

Coolant Filter Test Procedure

J2709_202609 (Current)

9/4/2026

This SAE Recommended Practice is applicable to coolant filters installed on mobile or stationary equipment. It describes a body of tests used to characterize the stuctural integrity and filtration performance of coolant filters.

Filter Test Methods Standards Committee

Test Guidelines for Assessment of Electrical Insulation Material Aging in a High Voltage System

ARP7375 (Current)

8/24/2026

To provide test guidelines, recommendations, and referenced standards for insulation materials in a high energy system especially at high voltages (AC, DC, and PWM) and at operational altitudes, for the purpose of defining/measuring the effects of insulation aging. This document is a part of a family of documents related to the impact of ageing on insulating materials devoted to aviation applications. Aging mechanisms, and the markers to monitor them, have been defined in AIR7374. For sake of brevity, the main conclusions are used here. ARP7375 focuses on the ways to measure these markers on representative samples (either coupons or electrical insulation systems) for aerospace applications.

AE-11 Aging Models for Electrical Insulation in Hi-Enrgy Sys

Ambulance Litter Integrity, Retention, and Patient Restraint

J3027_202608 (Current)

8/19/2026

This SAE Recommended Practice describes the testing procedures required to evaluate the integrity of a ground ambulance-based patient litter, litter retention system, and patient restraint when exposed to a frontal, side or rear impact. Its purpose is to provide litter manufacturers, ambulance builders, and end-users with testing procedures and, where appropriate, acceptance criteria that, to a great extent ensures the patient litter, litter retention system, and patient restraint utilizes a similar dynamic performance test methodology to that which is applied to other vehicle seating and occupant restraint systems. Descriptions of the test set-up, test instrumentation, photographic/video coverage, test fixture, and performance metrics are included.

Truck Crashworthiness Committee

Specifications for Low Carbon Cast Steel Shot

J2175_202608 (Current)

8/19/2026

This SAE Recommended Practice describes chemical analysis, hardness, microstructure, and physical characteristic requirements for low carbon cast steel shot to be used for shot peening or blast cleaning operations.

Surface Enhancement Committee

Ambulance Interior Storage Compartment Integrity

J3058_202608 (Current)

8/19/2026

This SAE Recommended Practice describes the dynamic testing procedures required to evaluate the integrity of patient compartment interior Storage Compartments such as cabinets, drawers, or refillable supply pouch systems when exposed to a frontal, side or rear impact (i.e., a crash impact). Its purpose is to provide component manufacturers, ambulance builders, and end-users with testing procedures and, where appropriate, acceptance criteria that, to a great extent, ensure interior Storage Compartments or systems meet the same performance criteria across the industry. Descriptions of the test set-up, test instrumentation, photographic/video coverage, test fixture, and performance metrics are included.

Truck Crashworthiness Committee

Plain Bearing Radial Limit and Ultimate Load Tests

ARP5448/1B (Current)

8/18/2026

This test method outlines the recommended procedure for performing radial limit load and ultimate load tests on low-speed airframe and high-speed helicopter rotor head bearings.

ACBG Plain Bearing Committee

Safety Assessment of Transport Airplanes in Commercial Service

ARP5150B (Current)

8/15/2026

This document describes guidelines, methods, and tools used to perform the ongoing safety assessment process for transport airplanes in commercial service (hereafter termed “airplane”). The process described herein is intended to support an overall management of safety. It is associated with showing compliance to regulations and also establishing and meeting internal company safety standards. The methods identify a systematic means, but not the only means, to assess ongoing safety. While economic decision-making is an integral part of the safety management process, this document addresses only the ongoing safety assessment process. To put it succinctly, this document addresses the “Is it safe?” part of safety management; it does not address the “How much does it cost?” part of safety management. This document also does not address any specific organizational structures for accomplishing the safety assessment process. While the nature of the organizational structure is significant to the quality of a safety program, this document focuses on the functions to be accomplished and does not attempt to define what the structure should be. The intent is to leave the greatest amount of flexibility to the organizations that use this document.

S-18C Ongoing Safety Assessment Committee

Vehicle OBD II Compliance Test Cases

J1699/3_202608 (Current)

8/15/2026

The main purpose of this SAE Recommended Practice is to verify that vehicles are capable of communicating a minimum subset of information in accordance with the diagnostic test services specified in SAE J1979, or the equivalent document ISO 15031-5. Any software meeting these specifications will utilize the vehicle interface that is defined in SAE J2534. SAE J1699-3 tests shall be run using an SAE J2534-1 (API Version 04.04) Interface. However, the use of an SAE J2534-2 (API Version 04.04) Interface shall be permitted if the following conditions are met: The number of 29-bit ISO 15765 OBD ECUs exceeds the capability of the SAE J2534-1 Interface. The SAE J2534-2 Interface meets or exceeds all of the SAE J2534-1 requirements and also supports the SAE J2534-2 feature “Mixed Format Frames on a CAN Network.”

Vehicle E E System Diagnostic Standards Committee

Airplane Design and Test Considerations for Tire Spray Suppression

ARP1904 (Current)

8/10/2026

This SAE Aerospace Recommended Practice (ARP) relates considerations and recommendations for design test procedures and test data evaluation for qualification of tire spray deflection devices.

A-5 Aerospace Landing Gear Systems Committee

High Voltage Shielded and Jacketed Cable

J2840_202608 (Current)

8/10/2026

This document covers cable, shielded and jacketed, intended for use at a nominal system voltage up to 1000 V (AC rms or DC). It is intended for use in surface vehicle electrical systems.

Cable Standards Committee

Gaining Approval for Seats with Integrated Electronics in Accordance with AC 21-49 Section 7.b

ARP6448C (Current)

8/10/2026

This SAE Aerospace Recommended Practice (ARP) provides a framework for establishing methods and stakeholder responsibilities to ensure that seats with integrated electronic components (e.g., actuation system, reading light, inflatable restraint, in-flight entertainment equipment, etc.) meet the seat technical standard order (TSO) minimum performance standards (MPS). These agreements will allow seat suppliers to build and ship TSO-approved seats with integrated electronic components. The document presents the roles and accountabilities of the electronics manufacturer (EM), the seat supplier, and the TC/ATC/STC applicant/holder in the context of AC 21-49, Section 7.b (“Type Certification Using TSO-Approved Seat with Electronic Components Defined in TSO Design”). This document applies to all FAA seat TSOs C39( ), C127( ), etc. The document defines the roles and responsibilities of each party involved in the procurement of electronics, their integration on a TSO-approved seat, and the seat’s installation on an aircraft. Requirements for design and quality control and the methods for communicating design and change data between EMs and seat suppliers are defined such that standardization is possible across the industry to ensure continued airworthiness of TSO-approved seats with integrated electronic components. This document primarily focuses on correspondence between the seat supplier and the EM. Appendix A: Presents key characteristics of electronic components and guidance on how changes are classified per the requirements of Table 1 of AC 21-49. Appendix B: Provides an outline of a typical data approval process and the change management process between EMs and seat suppliers. Appendix C: While the responsibility rests solely with the seat supplier to ensure all TSO attributes identified in Table 1 of AC 21-49 are acceptable, Appendix C has been included to outline the process for delegating EMs authorization to assess the impact of changes on their equipment with respect to seat TSO attributes. This authorization will allow the classification of the change and the appropriate administration of the change by the EM via seat supplier delegation. Appendix D: Given the mix of business arrangements that can exist in the seat, in-flight, and aircraft procurement life cycle (buyer-furnished equipment, supplier-furnished equipment, customer-furnished equipment), there is discussion on the potential need for separate agreements between the EMs and seat suppliers to ensure binding flow down of design and quality control requirements. As such, a working together agreement (WTA) template is provided as Appendix D.

Aircraft Seat Committee

A Standardized Approach to On-Board Diagnostic (OBD) System Signal Classification and Dependency Analysis

HRCS-PRP0001 (Current)8/7/2026

Part of the legislated on-board diagnostic (OBD) certification process is focused on identifying and documenting serial data signals that are relevant from a legislated OBD perspective. OBD regulations and documentation required for vehicle certification today are becoming increasingly complex. The reason is that increasing numbers of electronic control units (ECUs) are being introduced that communicate with each other. Most of these ECUs are much more powerful in terms of computational power, enabling the implementation of much more functionality on a single ECU. Most of that new functionality is being developed in software. Where previously hard-wired sensors were dominating, nowadays software components take over interpreting and enhancing sensor inputs. This recommended practice (RP) describes a standardized approach to meet these requirements for such increasingly complex environments. Specifically, this RP outlines how to create a serial data signal input/output (I/O) disclosure list to identify, trace, and categorize serial data signals that are relevant to certification. Furthermore, this RP defines a standardized data exchange format that original equipment manufacturers (OEMs) and suppliers can use to exchange related information. In addition to the vehicle certification context, we see a benefit in applying the described methodologies in other contexts, such as the usage of serial data signals within non-emissions-related and/or safety-critical systems.

Health Ready Components and Systems

Plain Bearing Test Methods

ARP5448C (Current)

8/3/2026

This SAE Aerospace Recommended Practice (ARP) establishes methods for testing airframe plain bearings. The purpose of ARP5448 and its associated slash sheets is to document test methods commonly used to evaluate airframe bearings. These test methods may be referenced in specifications, part standards, purchase orders, etc., when the test is deemed appropriate to the intended use of the bearing by the end user of the bearing. These test methods are not intended to encompass every conceivable requirement for an airframe bearing. The end user of the bearing must exercise engineering judgment to determine the most appropriate standard and/or nonstandard tests for the application.

ACBG Plain Bearing Committee

Across Hex Corner Dimension for Fluid Fittings and Nuts

ARP1942B (Current)

7/29/2026

This SAE Aerospace Recommended Practice (ARP) defines the minimum across hexagon corner dimensions for fluid tube fittings and nuts. The ARP covers commonly specified inch and millimeter hexagon sizes.

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies

Plain Bearing No-Load Rotational Breakaway Torque Measurement

ARP5448/5C (Current)

7/24/2026

This test method provides a procedure for measuring no-load rotational breakaway torque of self-lubricating spherical bearings.

ACBG Plain Bearing Committee

Vehicle OBD II Compliance Test Cases for SAE J1979-2/J1979-3

J1699/5_202607 (Current)

7/23/2026

The primary objective of this recommended practice is to confirm that vehicles can communicate a minimum set of information in accordance with diagnostic test services specified in SAE J1979-2, or the equivalent ISO 14229-1:2013 (Ed. 2) and SAE J1979-3 documents. A successful result using the SAE J1699-5 Automotive Alliance for Innovation (AAI) software for OBD-II testing indicates that the main aspects of UDS communication have been examined, but it does not provide assurance of complete compliance with all aspects of SAE J1979-2 or SAE J1979-3. SAE J1699-5 tests run with a SAE J2534 device hardware and API that is not fully compliant will result in a test failure. This specification takes precedence over all conflicts in the documents cited in this section.

Vehicle E E System Diagnostic Standards Committee

Filler Pipes and Openings of Motor Vehicle Fuel Tanks

J1140_202607 (Current)

7/21/2026

This SAE Recommended Practice was developed primarily for gasoline-powered passenger car and truck applications to interface vapor recovery systems, but it may be used in diesel, marine, industrial, and similar applications where a nozzle is required for filling. The zones cover nozzle spout access and handle clearance to a refilling port. In addition, this recommended practice includes a design window for nozzle manufacturers to develop with.

Fuel Systems Standards Committee

Plain Bearing Wear Measurement

ARP5448/7A (Current)7/20/2026

This standard details two methods of inspecting PTFE lined spherical or journal bearing wear outside the test apparatus. The methods described herein are applicable only to bearings which were unidirectionally loaded and the area of sliding wear is known and held constant throughout the dynamic test. The two methods described are: a Destructive Inspection - Cut and measure (not applicable to molded liners) b Nondestructive Inspection - Radial play (gauge) measurement

ACBG Plain Bearing Committee

Endurance Time Test Procedures for SAE Type II/III/IV Aircraft Deicing/Anti-icing Fluids

ARP5485C (Current)

7/20/2026

The purpose of this SAE Aerospace Recommended Practice (ARP) is to provide the sample selection and endurance time test procedures for SAE Type II, III, and IV aircraft deicing/anti-icing fluids, required for the generation of endurance time data of acceptable quality for review by the SAE G-12 Holdover Time Committee. The related standard ARP5718 provides the process by which endurance time data is converted to holdover times for publication by regulators and subsequent use by aircraft operators.

G-12HOT Holdover Time Committee

Automated Driving Fallback Test Driver Skill Certification

J3300/3_202607 (Current)

7/20/2026

This document is intended to establish a procedure to certify AD fallback test driver skill levels as an endorsement to SAE J3300 foundational level certification. The SAE J3300/3 endorsement can be used by the individual driver to qualify their skills as a test driver of vehicles with automated driving features. The SAE J3300/3 endorsement levels may also be used by test facilities or other organizations when seeking test or professional drivers with these skills. This document provides directions for obtaining the endorsement, including associated AD fallback test driving skill examination requirements, through SAE J3300-certified Examiners (refer to SAE J3300 for definition). Endorsement registration and associated records are administered through Probitas Authentication®. Probitas Authentication® is the current Independent Program Administrator for the SAE J3300 series. This document is a supplement to SAE J3300, providing information specific to the AD fallback test driver skill endorsement and clarifying the application of the rules set forth in SAE J3300 to the AD fallback test driver endorsement. While the references, definitions, rules, and guidelines presented in SAE J3300 Sections 1 through 5 apply to the AD fallback test driver endorsement, they are not repeated in this document.

Driving Skills Standards Committee

Procedure for Thermal Aging Test for Polyol Ester Gas Turbine Engine Lubricants

ARP6299A (Current)

7/17/2026

This method is intended to evaluate the thermal and oxidative stability of synthetic, ester-based aviation lubricants under defined conditions of time and temperature. This method is applicable to lubricants meeting the compositional and performance requirements of AS5780.

E-34 Propulsion Lubricants Committee

Starter Battery Identification and Classification

J2981_202607 (Current)

7/15/2026

This document provides recommendations to identify battery group sizes and dimensions for 6 V, 8 V, 12 V, and 24 V lead acid batteries.

Starter Battery Standards Committee

Physical Layer, 250 kbit/s, Twisted Shielded Pair

J1939-11_202607 (Current)

7/15/2026

This document defines a physical layer having a robust immunity to EMI and physical properties suitable for harsh environments. This document is suitable for CAN interfaces applying CAN HS (high-speed) transceivers as specified in ISO 11898-2. These SAE Recommended Practices are intended for light- and heavy-duty vehicles on- or off-road, as well as appropriate stationary applications which use vehicle derived components (e.g., generator sets). Vehicles of interest include, but are not limited to, on- and off-highway trucks and their trailers, construction equipment, and agricultural equipment and implements.

Truck and Bus Control and Communications Network Committee

Storage Batteries for Start-Stop Operations

J3012_202607 (Current)

7/14/2026

This SAE Standard applies to 12-volt lead-acid storage batteries that are designed specifically for start-stop operations in on-road passenger vehicles or light trucks. Included are definitions of terms, general testing recommendations, key performance characteristics, and life testing. Properties not unique to start-stop batteries should be tested according to SAE J537 or other applicable testing protocols.

Start-Stop Battery Committee

CVJ Efficiency Test Recommended Practice

J3249_202607 (Current)

7/14/2026

This recommended practice describes the procedure to measure and report the operating efficiency for all types of constant velocity joints (including fixed and plunging/end motion type joints) used in cars, SUVs, and trucks. This includes halfshaft as well as propshaft applications. This does not apply to non-CV joints. Rotational inertia is not considered within the scope of this recommended practice. This recommended practice provides a common method to quantify and report the operating efficiency characteristics of a CVJ. This practice does not apply to parasitic losses (spin loss, churning loss, or zero torque loss) as experienced on deactivated AWD/4WD systems. The losses in this condition are significantly less and require higher accuracy than what is required in this recommended practice.

Drivetrain Standards Committee

Guidelines for Aerodynamic Assessment of Medium and Heavy Commercial Ground Vehicles Using Computational Fluid Dynamics

J2966_202607 (Current)

7/14/2026

This document outlines general requirements for the use of CFD methods for aerodynamic simulation of medium and heavy commercial ground vehicles weighing more than 10000 pounds. The document provides guidance for aerodynamic simulation with CFD methods to support current vehicle characterization, vehicle development, vehicle concept development, and vehicle component development. The guidelines presented in the document are related to Navier-Stokes and Lattice-Boltzmann based solvers. This document is only valid for the classes of CFD methods and applications mentioned. Other classes of methods and applications may or may not be appropriate to simulate the aerodynamics of medium and heavy commercial ground vehicle weighing more than 10000 pounds.

Truck and Bus Aerodynamics and Fuel Economy Committee

RESS Cell Package Integrity Requirements and Tests

J3337_202607 (Current)

7/14/2026

This recommended practice (RP) presents a methodology to evaluate RESS Cells Closure Integrity (Leak Tightness) requirement. This RP applies to two types of RESS Cells, each containing liquid electrolyte: Lithium ion (Li-ion) Cells and Sodium ion (Na-ion) Cells. The Equivalent Channel Method is used as a suggested cell closure integrity requirement for a given RESS Cell design during its production and product validation phases. The Closure Integrity requirements intended to assure no electrolyte leakage and no excessive moisture ingress during the usage of these cells as part of the RESS (Battery Pack), which is crucial to assure the safety and performance of these RESS. This RP specifies non-destructive Integrity (leak) testing processes of the Cell Closure. It describes approved leak testing technologies, testing procedures, tooling requirements, and leak test systems validation/verification requirements. This document may be applied to RESS Cell Closure Integrity testing during their initial product validation and their in-line 100% of production integrity/leak testing. This RP applies to RESS Cells with rigid packaging (cylindrical or prismatic) or flexible packaging (pouch).

Battery Standards Testing Committee

Risk Assessment after Tin Whisker Observation

ARP7505 (Current)

7/13/2026

This document contains information and guidance on assessment of the risk posed by observed tin whiskers for aerospace, defense, and high-performance (ADHP) products or other products that demand high reliability.

G-24 Pb-free Risk Management Committee for ADHP

Measurement of Exhaust Sound Levels of Stationary Snowmobiles

J2567_202607 (Current)

7/6/2026

This SAE Standard establishes the test procedure, environment, and instrumentation for determining the sound levels of snowmobiles in the stationary test mode. This test method is intended to provide an accurate measurement of exhaust and other engine noise and may be used to evaluate new and in-use snowmobiles to determine compliance with noise control regulations. Sound level measurements obtained with this test method are not intended as an engineering determination of overall machine noise. For this purpose, the use of SAE J192 is recommended.

Snowmobile Technical Committee

Helicopter Engine-Rotor System Compatibility

ARP704A (Current)

7/2/2026

This SAE Aerospace Recommended Practice (ARP) recommends a methodology to be used for the design, analysis and test evaluation of modern helicopter gas turbine propulsion system stability and transient response characteristics. This methodology utilizes the computational power of modern digital computers to more thoroughly analyze, simulate and bench-test the helicopter engine/rotor system speed control loop over the flight envelope. This up-front work results in significantly less effort expended during flight test and delivers a more effective system into service. The methodology presented herein is recommended for modern digital electronic propulsion control systems and also for traditional analog and hydromechanical systems.

S-12 Powered Lift Propulsion Committee

Defining and Measuring Factors Affecting Helicopter Turbine Engine Power Available

ARP1702B (Current)

6/29/2026

This SAE Aerospace Recommended Practice (ARP) identifies and defines a method of measuring those factors affecting installed power available for helicopter powerplants. These factors are installation losses, accessory power extraction, and operational effects. Accurate determination of these factors is vital in the calculation of helicopter performance as described in the RFM. It is intended that the methods presented herein prescribe and define each factor as well as an approach to measuring said factor. Only basic installations of turboshaft engines in helicopters are considered. Although the methods described may apply in principle to other configurations that lead to more complex installation losses, such as an inlet particle separator, inlet barrier filter (with or without a bypass system), or infrared suppressor, specialized or individual techniques may be required in these cases for the determination and definition of engine installation losses. Some rotorcraft may use an alternate source of propulsion system power to supplement engine output shaft power delivered. If RFM performance includes the contribution of a Supplemental Power Unit (SPU), then the installed power available of the SPU should also be defined and measured, for which the power loss factors and methods described in this document may be applicable.

S-12 Powered Lift Propulsion Committee

Safety Alert Symbol for Agricultural, Construction, and Industrial Equipment

J284_202606 (Current)

6/29/2026

This SAE Recommended Practice covers the safety alert symbol intended for use on construction and industrial equipment as defined in SAE J1116 and on agricultural tractors and machinery as defined in ASABE S390.

HFTC2, Machine Displays and Symbols

Hot Plate Method for Evaluating Heat Resistance and Thermal Insulation Properties of Materials

J1361_202606 (Current)

6/29/2026

This test method is applicable for rating various materials, such as automotive trim materials and insulation composites, for their ability to resist heat transfer, heat degradation, odor, smoking, and exothermic reaction under prescribed temperature.

Acoustical Materials Committee

Standards for Battery Secondary Use

J2997_202606 (Current)

6/24/2026

This document provides recommendations involving BEV battery data retention and battery design that enhance the potential for BEV battery reuse and serviceability and that can improve recyclability. These recommendations have been developed by a group of professionals skilled in the secondary-use of batteries and in the research, development, and manufacture of BEV batteries and battery systems.

Secondary Battery Use Committee

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