Recommended Practices - SAE Mobilus

Items (7,522)

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

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

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

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

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

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

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

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

Dimensional and Performance Testing Specifications for Secondary Pouch Cells for Group 1 Small Uncrewed Aerial Vehicle(s) (sUAV)

JA1016_202606 (Current)

6/23/2026

This document establishes standardized dimensional cell geometry, performance-test procedures, and reporting requirements for secondary (i.e., rechargeable) pouch cells used in Group 1 sUAV. It defines reference geometries, test conditions, and uniform data formats to allow direct comparison of pouch-cell performance across manufacturers and to improve interoperability within the sUAV ecosystem.

Battery Cell Size Standardization Committee

High-Strength, Hot-Rolled Steel Bars

J1442_202606 (Current)

6/23/2026

This SAE Recommended Practice covers two levels of high strength structural low-alloy steel bars having minimum Yield Points of 345 MPa (50 ksi) and 450 MPa (65 ksi). The two strength levels are 345 and 450 MPa or 50 and 65 ksi minimum yield point. Different chemical compositions are used to achieve the specified mechanical properties. In some cases there are significant differences in chemical composition for the same strength level, depending on the fabricating requirements. It should be noted that although the mechanical properties for a steel grade sourced from different suppliers may be the same, the chemical composition may vary significantly. The fabricator should be aware that certain compositional differences may effect the forming, welding, and/or service requirements of the material. It is therefore recommended that the fabricator consult with the producer to understand the effect of chemical composition. The products within the scope of this document include bars of the following types and sizes: Rounds, squares, and hexagons of all sizes (cut length only), flats 5.2 mm (0.203 in) and greater in thickness but not greater than 150 mm (6 in) wide, and flats greater than 5.8 mm (0.229 in) thick and over 150 mm (6 in) to 204 mm (8 in) wide. This document previously covered plates, structural shapes, and bar size shapes of Grades 290A, 345A, 415A, 450A, 345W, 345F, 415F, 485F, and 550F as well as bars of Grades 290A, 415A, and 345W. These products are no longer covered; requirements for these products and grades can be found in ASTM Specifications as follows in Table 1: Product Previous SAE Grade ASTM Specification/Grade Plates, Structural Shapes, Bar Size Shapes, Bars 290A A 572/A 572M, Grade 42 Plates, Structural Shapes, Bar Size Shapes 345A A 572/A 572M, Grade 50 Plates, Structural Shapes, Bar Size Shapes, Bars 415A A 572/A 572M, Grade 60 Plates, Structural Shapes, Bar Size Shapes 450A A 57/A 572M, Grade 65 Plates, Structural Shapes, Bar Size Shapes, Bars 345W A 588/A 588M Plates 345F A 656/A 656M, Grade 50 Plates 415F A 656/A 656M, Grade 60 Plates 485F A 656/A 656M, Grade 70 Plates 550F A 656/A 656M, Grade 80 TABLE 1 EQUIVALENT ASTM SPECIFICATIONS

Metals Technical Committee

Methods for Determining Plastic Deformation in Sheet Metal Stampings

J863_202606 (Current)

6/23/2026

This SAE Recommended Practice describes methods for determining plastic deformation encountered in the forming or drawing of sheet steel.

Metals Technical Committee

High-Strength Carbon and Alloy Die Drawn Steels

J935_202606 (Current)

6/22/2026

This SAE Recommended Practice is intended to provide basic information on properties and characteristics of high-strength carbon and alloy steels which have been subjected to special die drawing. This includes both cold drawing with heavier-than-normal drafts and die drawing at elevated temperatures.

Metals Technical Committee

Automatic Transmission Hydraulic Pump Test Procedure

J2311_202606 (Current)

6/19/2026

This SAE Recommended Practice provides a method to determine the performance characteristics of the hydraulic oil pumps used in automatic transmissions and automatic transaxles. This document outlines the specific tests that describe the performance characteristics of these pumps over a range of operating conditions and the means to present the test data. This document is not intended to assess pump durability.

Automatic Transmission and Transaxle Committee

J2192_202606 (Current)

6/18/2026

This SAE Recommended Practice describes the recommended methods for testing flexible harness coverings for use on ground vehicle electrical distribution systems. It shall apply to all tapes, extruded tube, and textile tube.

Harness Covering Standards Committee

Chord Method of Evaluating Surface Microstructural Characteristics

ARP1820C (Current)

6/18/2026

This practice provides a method for evaluating microhardness and microstructure very close (0.002 inch (0.051 mm) or less) to the surface of a disk specimen. Specific accept/reject criteria for partial decarburization (3.7.1), inadvertent carburization/nitriding (3.7.3), total decarburization/intergranular oxidation (3.8), and other characteristics evaluated are to be found in the applicable specification where this ARP is referenced.

AMS E Carbon and Low Alloy Steels Committee

Safety Considerations for High-Intensity Lights (HIL) Directed into the Navigable Airspace

ARP5560A (Current)

6/15/2026

This document applies to regulatory/approving authorities involved with decisions regarding the use of high-intensity light (HIL) directed into the navigable airspace. For the purpose of this document, lights greater than 0.25 million candlepower meet the minimum threshold of an HIL. Lights not directed or reflected into the navigable airspace are not usually considered to interfere with aircraft operations. HILs include laser-derived light sources; other laser systems are beyond the scope of this document. This document addresses adverse effects of HILs on humans, such as visual interference. HIL effects on Unmanned Aircraft Systems (UASs) are beyond the scope of this document.

G-10T Laser Safety Hazards Committee

Control Measures for Laser Safety in the Navigable Airspace

ARP5572B (Current)

6/15/2026

This SAE Aerospace Recommended Practice (ARP) provides information and guidance for the control of hazardous laser exposure in the navigable airspace. This ARP does not address techniques that pilots can apply to mitigate laser illuminations during a critical phase of flight. Such mitigation strategies are described in ARP6378.

G-10T Laser Safety Hazards Committee

Hydraulic Filter Elements - Method for Evaluating Dynamic Efficiency with Cyclic Flow

ARP4205A (Current)

6/15/2026

This SAE Aerospace Recommended Practice (ARP) describes a method for evaluating the performance of filter elements designed for aerospace hydraulic systems. The performance is measured and reported in terms of filtration ratios and stabilized contamination levels while testing with cyclic flow.

A-6C1 Fluids and Contamination Control Committee

Guide for Conducting an HIRF and Lightning Safety Assessment (HLSA)

ARP8482 (Current)

6/15/2026

Highly integrated electrical and electronic systems that perform functions within an aircraft may have potential failure conditions during and after exposure to the High-Intensity Radiated Fields (HIRF) or lightning environments. It is therefore necessary to conduct an HIRF and Lightning Safety Assessment (HLSA) that can identify potential failure conditions resulting from exposure to the aircraft HIRF and lightning environments. The failure conditions, failure conditions classifications, and independence principles identified by Aircraft Functional Hazard Assessment (AFHA), Preliminary Aircraft Safety Assessment (PASA), System Functional Hazard Assessment (SFHA), and Preliminary System Safety Assessment (PSSA), and lessons learned from previous experience, are used to identify proposed requirements during the development process. Ultimately, these requirements will result in a design capable of demonstrating that exposure to the HIRF and lightning environments will not result in adverse effects to the operation of the aircraft. This document provides guidance for conducting the HLSA process to classify the system and its equipment to the appropriate HIRF and Lightning Certification Levels (HLCLs).

AE-4 Electromagnetic Compatibility (EMC) Committee

Safety Considerations for Lasers Projected in the Navigable Airspace

ARP5293B (Current)

6/15/2026

This document applies to laser proponents involved with the use of laser systems outdoors. It may be used in conjunction with AS4970, ARP5535, ARP5572, and the ANSI Z136 series of laser safety standards.

G-10T Laser Safety Hazards Committee

Gland Design Criteria and Dimensions for Dynamic Radial O-Ring Seal Applications Specifically for Engine and Engine Control Systems Operating at 1500 psi Max

ARP1233B (Current)

6/12/2026

This document recommends standard gland design criteria and dimensions for dynamic radial O-ring seal applications specifically for engine and engine control systems operating at pressures up to a maximum of 1500 psi (10342.14 kPa) and provides recommendations for modifying these glands in special applications. There are no provisions in this document for anti-extrusion devices. NOTE: The criteria set forth here are similar to but not identical with those in MIL-G-5514 and AS4716. This document is not intended to replace MIL-G-5514 or AS4716 for hydraulic applications.

A-6C2 Seals Committee

Rolling Element Bearing Axial and Radial Internal Clearance

ARP5483/3B (Current)

6/10/2026

This test method outlines the standard procedure for measuring the radial and axial internal clearance of rolling element bearings used in airframe controls.

ACBG Rolling Element Bearing Committee

Guide to Certification of Aircraft in a High-Intensity Radiated Field (HIRF) Environment

ARP5583B (Current)

6/8/2026

This document and the EUROCAE equivalent, ED-107, provides detailed information, guidance, and methods in support of the Federal Aviation Administration (FAA) Advisory Circular (AC) 20-158 and to the European Union Aviation Safety Agency (EASA) AMC 20-158. AC 20-158 provides a means, but not the only means, for demonstrating compliance with Title 14 of the Code of Federal Regulations (14 CFR) 23.1308 (Amendment 57 and lower), 23.2520 (Amendment 64 and higher), 25.1317, 27.1317, 29.1317, and applicable FAA HIRF special conditions addressing HIRF Protection. AMC 20-158 is applicable to Certification Specifications CS 23.1308 (Amendment 4 and lower), 23.2520 (Amendment 5 and higher), 25.1317, 27.1317, and 29.1317. It should be noted that this document is neither mandatory nor regulatory in nature and does not constitute a regulation or legal interpretation of the regulation. Therefore, an applicant may elect to establish an alternative method of compliance that is acceptable to the certifying airworthiness authorities. The information in this guide represents a collection of the best engineering practices that have been used to certify aircraft HIRF protection. It provides: Practical design considerations HIRF compliance steps Aircraft level verification and testing guidance Detailed guidance for Level A system compliance and testing Detailed guidance for Level B and C system compliance and testing Guidance in the area of continued airworthiness This document provides guidelines for testing the aircraft and equipment for HIRF compliance, with the latter using RTCA DO-160/EUROCAE ED-14 Section 20. This document also contains guidance applicable to both new applications for aircraft certification and historic information applicable to continued compliance with existing aircraft certifications. When establishing continued compliance, it is necessary to review the basis on which the original certification was granted to determine the requirements that were in force at that time in all jurisdictions where the certification was granted.

AE-4 Electromagnetic Compatibility (EMC) Committee

Safety Considerations for Aircraft-Mounted Lasers Projected into the Navigable Airspace

ARP5674A (Current)

6/8/2026

This SAE Aerospace Recommended Practice (ARP) is intended to be used for laser systems mounted on aircraft and propagated into navigable airspace. This does not include lasers onboard aircraft where the beam is contained within an enclosure so that the beam cannot enter into airspace, nor does it include lasers from satellites and spacecraft in outer space. It may be used in conjunction with AS4970, ARP5535, ARP5572, ARP5293, and the ANSI Z136 laser safety standards.

G-10T Laser Safety Hazards Committee

Driveline Parking Brake Test Procedure for Medium Duty Vehicles

J2690_202606 (Current)

6/3/2026

This SAE Recommended Practice establishes uniform test procedures for friction based parking brake components used in conjunction with hydraulic service braked vehicles with a gross vehicle weight rating greater than 4500 kg (10 000 lb). The components covered in this document are the primary actuation and the foundation park brake. Various peripheral devices such as application dashboard switches or indicators are not included. These test procedures include the following: a Brake Related Tests 1 Brake Functional Performance 2 Brake Dynamic Torque Performance 3 Brake Corrosion Resistance 4 Brake Endurance with Torque 5 Brake Endurance without Torque 6 Vibration Resistance 7 Brake Ultimate Static Load 8 Brake Lining Wear Adjuster Function b Actuation Related Tests 1 Mechanical Actuator Functional Performance 2 Mechanical Actuator Endurance 3 Mechanical Actuator Quick Release 4 Mechanical Actuator Ultimate Load 5 Spring Apply Actuator Functional Performance 6 Spring Apply Actuator Operating Temperature Range 7 Spring Apply Actuator Endurance 8 Spring Apply Actuator Corrosion Resistance 9 Spring Apply Actuator On-Off Switch 10 Spring Apply Actuator Vibration

Truck and Bus Hydraulic Brake Committee

Functional, Performance, and Safety Guidelines for Tire Pressure Monitoring Systems (TPMS) for Aircraft

ARP6137A (Current)

6/1/2026

This SAE Aerospace Recommended Practice (ARP) document is intended to establish overall component and system function guidelines and minimum performance levels for a TPMS. These guidelines include, but are not limited to: Design recommendations for system components, which: Monitor tire inflation; Are located in/on the tire/wheel assembly, landing gear axle, and/or aircraft avionics compartment. Recommended performance and safety guidelines for a TPMS.

A-5 Aerospace Landing Gear Systems Committee

Side Turn Signal Lamp for Long Vehicles

J2039_202606 (Current)

6/1/2026

This SAE Recommended Practice provides test procedures, requirements, and guidelines for side turn signal lamps intended for use on vehicles 12 m or more in overall length, except pole trailers. Side turn signal lamps conforming to the requirements of this document may be used on other large vehicles such as trucks, truck tractors, buses, and other applications where this type of lighting device is desirable.

Heavy Duty Lighting Standards Committee

Top Speed Test Procedure for Electric Motorcycles

J3007_202605 (Current)

5/27/2026

This SAE Recommended Practice incorporates a track-based test procedure that produces a representative value for vehicle top speed when operating on a level paved road with a fully charged battery.

Motorcycle Technical Steering Committee

Traffic Display and Collision Avoidance Systems

ARP4102/10C (Current)

5/27/2026

This document presents criteria for flight deck controls and displays for Airborne Collision Avoidance Systems.

S-7 Flight Deck Handling Qualities Stds for Trans Aircraft

Software Supportability Program Implementation Guide

JA1005_201205 (Current)

5/26/2026

This SAE Recommended Practice provides recommended guidelines and best practices for implementing a supportability program to ensure that software is supportable throughout its life cycle. This Implementation Guide is the companion to the Software Supportability Program Standard, SAE JA1004, that describes, within a Plan-Case framework, what software supportability performance requirements are necessary. This document has general applicability to all sectors of industry and commerce and to all types of equipment whose functionality is to some degree implemented via software. It is intended to be guidance for business purposes and should be applied when it provides a value-added basis for the business aspects of development, use, and sustainment of support-critical software. Applicability of specific recommended practices will depend on the support-significance of the software, application domain, and life cycle stage of the software.

G-41 Reliability

Software Support Concept

JA1006_201205 (Current)

5/26/2026

This SAE Recommended Practice provides a framework for the establishment of a software support concept related to the support and supportability of both custom-developed and Off-the-Shelf (OTS) software. This document complements SAE AIR 5121, JA1004, and JA1005 by providing information needed to understand the support aspects that should be covered by a software supportability program. It should be noted that particular information indicated here should not be considered a complete list of all aspects of the support concept. In particular, the information should not be confused with a list of data elements. This document has general applicability to all sectors of industry and commerce and to all types of equipment that contain software. The target audience for this document includes software acquisition organizations, software logisticians, developers, supporters, and customers. This document is intended to be guidance for business purposes and should be applied when it provides a value-added basis for the business aspects of development, use, and sustainment of support-critical software.

G-41 Reliability

Design and Run-Time Information Exchange for Health-Ready Components

JA6268_202303 (Current)

5/26/2026

This Surface Vehicle & Aerospace Recommended Practice offers best practices and a methodology by which IVHM functionality relating to components and subsystems should be integrated into vehicle or platform level applications. The intent of the document is to provide practitioners with a structured methodology for specifying, characterizing and exposing the inherent IVHM functionality of a component or subsystem using a common functional reference model, i.e., through the exchange of design-time data and the application of standard vehicle data communications interfaces. This document includes best practices and guidance related to the specification of the information that must be exchanged between the functional layers in the IVHM system or between lower-level components/subsystems and the higher-level control system to enable health monitoring and tracking of system degradation severity. The intent is to provide an IVHM system that can robustly report the degradation of a given component before it reaches the point where it goes outside its operational performance envelope by providing sufficient advance notice to deal with the issue. This document does not specify or address how each layer in the IVHM system produces or uses the data available for exchange.

HM-1 Integrated Vehicle Health Management Committee

Using a System Reliability Model to Optimize Maintenance Costs A Best Practices Guide

JA6097_201905 (Current)

5/26/2026

SAE JA6097 (“Using a System Reliability Model to Optimize Maintenance”) shows how to determine which maintenance to perform on a system when that system requires corrective maintenance to achieve the lowest long-term operating cost. While this document may focus on applications to Jet Engines and Aircraft, this methodology could be applied to nearly any type of system. However, it would be most effective for systems that are tightly integrated, where a failure in any part of the system causes the entire system to go off-line, and the process of accessing a failed component can require additional maintenance on other unrelated components.

HM-1 Integrated Vehicle Health Management Committee

Reliability Program Standard

JA1000_202108 (Current)

5/26/2026

This SAE standard establishes the requirement for suppliers to plan a reliability program that satisfies the following three requirements: a The supplier shall ascertain customer requirements b The supplier shall meet customer requirements c The supplier shall assure that customer requirements have been met

G-41 Reliability

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