Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Standards Incorporated by Reference (SIBR) Database
If you would like to be notified when new records are added to the Standards Incorporated by Reference (SIBR) Database, please click on the button to subscribe to this weekly alert.
Accessing Standards Incorporated by Reference
This database provides information on standards that have been incorporated by reference into the US Code of Federal Regulations (CFR). To obtain copies of the standards referenced, information should be provided in the referenced CFR section about how to obtain a copy. Alternatively, individuals can check with the standards publisher, a standards resellers or for a limited number of standards used in regulations, consult the American National Standards Institute (ANSI) Incorporated by Reference (IBR) Portal. This portal provides a mechanism for limited and free access to some of the standards that have been incorporated by reference in the U.S. Code of Federal Regulations (CFR).
| Incorporated by (Agency) | FR Citation | CFR Citation | Document Number Sort descending | Document Edition / Year | Title of Standard | Standard Publishing Organization |
|---|---|---|---|---|---|---|
| Research and Special Programs Administration | 49 CFR 179.220-7(g) | AAR Publication | 2000 | Specification for Tank Cars, Appendix M | Association of American Railroads | |
| Research and Special Programs Administration | 49 CFR 174.55(c) | AAR Publication | 1988 | AAR Manual of Standards and Recommended Practices, Section I, Specially Equipped Freight Car and Intermodal Equipment | Association of American Railroads | |
| Research and Special Programs Administration | 49 CFR 179.100-13(e) | AAR Publication | 1981 | AAR Specification for Design, Fabrication and Construction of Freight Cars, Appendix W | Association of American Railroads | |
| Research and Special Programs Administration | 49 CFR 179.200-14(c) | AAR Publication | 2000 | Specification for Tank Cars, Appendix E | Association of American Railroads | |
| Research and Special Programs Administration | 49 CFR 179.200-17(a)(1) | AAR Publication | 2000 | Specification for Tank Cars, Appendix E | Association of American Railroads | |
| Research and Special Programs Administration | 49 CFR 179.200-7(h) | AAR Publication | 2000 | Specification for Tank Cars, Appendix M | Association of American Railroads | |
| Research and Special Programs Administration | 49 CFR 179.200-22(d) | AAR Publication | 2000 | Specification for Tank Cars, Appendix W | Association of American Railroads | |
| Research and Special Programs Administration | 49 CFR 179.16(c)(3) | AAR Publication | 1988 | AAR Specification for Design, Fabrication and Construction of Freight Cars, Volume 1 | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 235.12(b) | AAR Publication | 2013 | Graphic Symbols | Association of American Railroads | |
| Research and Special Programs Administration | 49 CFR 179.220-10(a) | AAR Publication | 2000 | Specification for Tank Cars, Appendix W | Association of American Railroads | |
| Pipeline and Hazardous Materials Safety Administration | 49 CFR 179.200-13(a) | AAR Publication | 2000 | Specification for Tank Cars, Appendix E | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.603(a) | AAR S-4200 | 2008 | Electronically Controlled Pneumatic (ECP) Cable-Based Brake Systems—Performance Requirements | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.607(e)(2)(i) | AAR S-4200 | 2008 | Electronically Controlled Pneumatic (ECP) Cable-Based Brake Systems—Performance Requirements | Association of American Railroads | |
| Transportation Department | 85 FR 80544 | 49 CFR 221 | AAR S-4200 | 2014 | Miscellaneous Amendments to Brake System Safety Standards and Codification of Waivers | Association of American Railroads |
| Federal Railroad Administration | 49 CFR 232.603(a)(1) | AAR S-4200 | 2008 | Electronically Controlled Pneumatic (ECP) Cable-Based Brake Systems—Performance Requirements | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.603(a) | AAR S-4210 | 2007 | ECP Cable-Based Brake System Cable, Connectors, and Junction Boxes—Performance Specifications | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.603(a)(2) | AAR S-4210 | 2007 | ECP Cable-Based Brake System Cable, Connectors, and Junction Boxes—Performance Specifications | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.603(a) | AAR S-4220 | 2002 | ECP Cable-Based Brake DC Power Supply—Performance Specification, Version 2.0 | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.603(a)(3) | AAR S-4220 | 2002 | ECP Cable-Based Brake DC Power Supply—Performance Specification, Version 2.0 | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.603(a) | AAR S-4230 | 2004 | Intratrain Communication (ITC) Specification for Cable-Based Freight Train Control System, Version 3.0 | Association of American Railroads | |
| Transportation Department | 85 FR 80544 | 49 CFR 221 | AAR S-4230 | 2014 | Miscellaneous Amendments to Brake System Safety Standards and Codification of Waivers | Association of American Railroads |
| Federal Railroad Administration | 49 CFR 232.603(a)(4) | AAR S-4230 | 2004 | Intratrain Communication (ITC) Specification for Cable-Based Freight Train Control System, Version 3.0 | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.603(b) | AAR S-4240 | 2007 | ECP Brake Equipment—Approval Procedures | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.603(a) | AAR S-4240 | 2007 | ECP Brake Equipment—Approval Procedure | Association of American Railroads | |
| Transportation Department | 85 FR 80544 | 49 CFR 221 | AAR S-4240 | 2007 | Miscellaneous Amendments to Brake System Safety Standards and Codification of Waivers | Association of American Railroads |
| Federal Railroad Administration | 49 CFR 232.603(a)(5) | AAR S-4240 | 2007 | ECP Brake Equipment—Approval Procedure | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.603(a)(6) | AAR S-4250 | 2004 | Performance Requirements for ITC Controlled Cable-Based Distributed Power Systems, Version 2.0 | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.603(a) | AAR S-4250 | 2004 | Performance Requirements for ITC Controlled Cable-Based Distributed Power Systems, Version 2.0 | Association of American Railroads | |
| Transportation Department | 85 FR 80544 | 49 CFR 221 | AAR S-4250 | 2014 | Miscellaneous Amendments to Brake System Safety Standards and Codification of Waivers | Association of American Railroads |
| Federal Railroad Administration | 49 CFR 232.603(a)(7) | AAR S-4260 | 2007 | ECP Brake and Wire Distributed Power Interoperability Test Procedures | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.603(a) | AAR S-4260 | 2007 | ECP Brake and Wire Distributed Power Interoperability Test Procedures | Association of American Railroads | |
| Transportation Department | 85 FR 80544 | 49 CFR 221 | AAR S-4260 | 2008 | Miscellaneous Amendments to Brake System Safety Standards and Codification of Waivers | Association of American Railroads |
| Transportation Department | 85 FR 80544 | 49 CFR 221 | AAR S-4270 | 2008 | Miscellaneous Amendments to Brake System Safety Standards and Codification of Waivers | Association of American Railroads |
| Federal Railroad Administration | 49 CFR 232.603(a)(8) | AAR S-4270 | 2008 | ECP Brake System Configuration Management | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.603(a) | AAR S-4270 | 2008 | ECP Brake System Configuration Management | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.103(l) | AAR S-469-47 | 1999 | Performance Specification of Freight Brakes | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.603(d)(1) | AAR S-469-47 | 1999 | Performance Specification for Freight Brakes | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.103(l) | AAR S-469-47 | 1999 | Performance Specification of Freight Brakes | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.305(a) | AAR S-486-04 | 2004 | Tests-Standard Freight Brake Equipment, Section 3.0, Tests-Standard Freight Brake Equipment, and Section 4.0, Special Tests | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 232.305(a) | AAR S-486-04 | 2004 | Tests-Standard Freight Brake Equipment, Section 3.0, Tests-Standard Freight Brake Equipment, and Section 4.0, Special Tests | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 229.217(a) | AAR S-5506 | 2001 | Performance Requirements for Diesel Electric Locomotive Fuel Tanks | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 229.217(a) | AAR S-5506 | 2001 | Performance Requirements for Diesel Electric Locomotive Fuel Tanks | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 229.205(a)(1) | AAR S-580 | 2005 | Locomotive Crashworthiness Requirements | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 229.205(a)(1) | AAR S-580 | 2005 | Locomotive Crashworthiness Requirements | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 229.205(b) | AAR S-580 | 2005 | Locomotive Crashworthiness Requirements | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 229.205(c) | AAR S-580 | 2005 | Locomotive Crashworthiness Requirements | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 229.206 | AAR S-580 | 2005 | Locomotive Crashworthiness Requirements | Association of American Railroads | |
| Federal Railroad Administration | 49 CFR 229.207(a) | AAR S-580 | 2005 | Locomotive Crashworthiness Requirements | Association of American Railroads | |
| Transportation Department | 85 FR 44994 | 49 CFR 173 | AAR Section C Part III - Specifications for Tank Cars M-1002 (2014) | 2014 | Hazardous Materials: Liquefied Natural Gas by Rail | Association of American Railroads |
| Research and Special Programs Administration | 49 CFR 179.20 | AAR Specification M-1002 | 2000 | AAR Manual of Standards and Recommended Practices, Section C-Part III, Specification for Tank Cars | Association of American Railroads |