TMC's 2021 RP Manual Supplement is now available to Council members. To access select the
RPs and Other Technical Information tab in the RED BAR at the top of TMC Connect and look for
2021 RP Supplement. The direct link is
https://webviewer.trucking.org/MeRgjR The Supplement features 65 new, revised or reissued Recommended Practices including:
ELECTRICAL—S.1
RP 101C Heavy-Duty Truck Alternator Mounting
RP 105D Design and Installation of Copper Power Cable Assemblies
RP 114B Wiring Harness Protection
RP 124B Heavy-Duty Headlamp Design Specifications
RP 128B Turn Signal and Hazard Warning Flashers
RP 135 Multi-Pin Connector Repairs
RP 136C Managed/Isolated Battery Systems for Electric Start Systems
RP 140B Understanding Key-Off Parasitic Loads
RP 145 Symbols for Electrical Circuit Protection
RP 146 Identification of Standardized Electrical Circuits for Class 8 Vehicles
RP 147 SAE J560 Plug and Receptacle Wire-to-Terminal Interface Performance Guidelines
RP 149 Alternator Drive Standardization
RP 150 Alternator Terminal Standardization
RP 151A Guidelines For Extending Headlight Life
RP 152 Performance Guidelines for Cab and Sleeper Interior Lighting
RP 155A Selection and Application Of Corrosion-Preventing Materials For Sealed And Unsealed Electrical Connections
RP 164 Proper Jump Start Procedures
RP 165 Proper Electric Arc Welding Procedures For Vehicles With Sensitive Electronics
RP 168 Design Recommendations For Preventing Vehicle Electrical Fires
RP 172 Recommended Cleaning and Maintenance of Headlamps for Commercial Vehicles
RP 174 Guidelines For Battery Disconnect Switches
RP 179A Liftgate Charging & Pump Motor Diagnostic & Maintenance Guidelines
RP 187 Guidelines For Fifth Wheel Ground Strap Installation
TIRE & WHEEL—S.2
RP 210F Radial Tire Construction Terminology
RP 211E Considerations for Rim and Wheel Selection
RP 221F Retread Plant Inspection Guidelines
RP 226E Radial Tire Repair Identifer (Blue Triangle)
RP 255A Understanding Disc Wheel Outset, Inset and Offset
RP 267 Guidelines For Repolishing Aluminum Wheels
RP 268 Tire Asset Identification and Tracking
ENGINE—S.3
RP 325A Radiator Integrity For On-Highway Trucks
RP 364A Fleet Purchasing Specification for Organic Acid Technology Extended Life Coolant
RP 374 Cleaning Diesel Particulate Filters and Diesel Oxidation Catalysts
RP 375 Leak Detection In Engine Systems Utilizing Visible Vapor Technology
RP 376 Thermal Event Prevention In Natural Gas (CNG/LNG) Powered Vehicles
CAB & CONTROLS—S.4
RP 401D Location and Operation of Instruments and Controls In Motor Truck Cabs
RP 406D Windshield Wiper System Performance Recommendations
RP 407C Defrosting, Defogging, and Heating Performance Requirements For Truck Cabs With and Without Sleepers
S.5 FLEET MAINTENANCE MANAGEMENT
RP 512B Technician Staffing Determination
RP 545 Developing Key Performance Indicators For Maintenance Operations
CHASSIS AND BRAKE SYSTEMS—S.6
RP 602B Recovery Attachment Points for Trucks, Tractors and Combination Vehicles
RP 605C Reconditioning Brake Shoes
RP 609D Self-Adjusting and Manual Brake Adjuster Removal, Installation and Maintenance
RP 610B Driveline Design Criteria
RP 616A Uniform Labeling of Air Brake Valves
RP 626B Heavy-Duty Truck Towing Procedures
RP 642B Total Vehicle Alignment: Recommendations for Maximizing Tire and Alignment-Related Component Life
RP 645A Tie Rod Inspection and Maintenance Procedure
RP 646 Driveline Fastener Preventive Maintenance
RP 649A Diagnostic Guidelines for Performance-Based Brake Testers
TRAILERS, BODIES, AND MATERIAL HANDLING—S.7
RP 708D Trailer Axle Alignment
RP 755A Alternative Liftgate and Material Handling Charging Methods
RP 763 Cryogenic Cooling of Refrigerated Trailers
COST CONTROL METHODS—S.8
RP 803B Pre-Service Vehicle Inspection
RP 808 EDI Transactions for Aftermarket Parts Purchasing
SUSTAINABILITY & ENVIRONMENTAL TECHNOLOGIES—S.11
RP 1105B Idle Reduction Systems
ON-BOARD VEHICLE ELECTRONICS—S.12
RP 1210D Windows Communication Application Program Interface (API)
RP 1213A Vehicle to Off-Board Computing Devices: Component User Interface Guidelines
RP 1214A Guidelines For Event Data Collection, Storage and Retrieval
RP 1215 Software Compatibility Guidelines
RP 1226A Vehicle Accessory Connector Guidelines
LIGHT- AND MEDIUM-DUTY TRUCKS—S.14
RP 1412A Walk-in Van Electrical System Routing and Load Requirements
RP 1437 Commercial Motor Vehicle Axle Fluid Level Inspection Guidelines
SPECIALTY TRUCKS—S.15
RP 1514A Hydraulic System Failure Analysis
SERVICE PROVIDER—S.16
RP 1610A Emissions Tampering Guidelines