(a) Certain material is incorporated by reference into this subpart with the approval of the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. To enforce any edition other than that specified in this section, the DOE must publish a document in the Federal Register and the material must be available to the public. All approved incorporation by reference (IBR) material is available for inspection at DOE and at the National Archives and Records Administration (NARA). Contact DOE at: the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Building Technologies Program, 1000 Independence Avenue SW, EE-5B, Washington, DC 20024, (202) 586-9127, [email protected], www.energy.gov/eere/buildings/building-technologies-office. For information on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations.html or email: [email protected]. The material may be obtained from the sources in paragraphs (b) and (c) of this section:

(b) IEC. International Electrotechnical Commission Central Office, 3, rue de Varembé, Case Postale 131, CH-1211 GENEVA 20, Switzerland; + 41 22 919 02 11; webstore.iec.ch.

(1) IEC 60584-1:2013, Thermocouples—Part 1: EMF specifications and tolerances, editions 3.0, August 2013; IBR approved for appendix A to this subpart.

(2) IEC 60584-3:2021, Thermocouples—Part 3: Extension and compensating cables—Tolerances and identification system, edition 3.0, February 2021; IBR approved for appendix A to this subpart.

(c) ISO. International Organization for Standardization, Chemin de Blandonnet 8, CP 401, 1214 Vernier, Geneva, Switzerland +41 22 749 01 11, www.iso.org.

(1) ISO 1217:2009(E), Displacement compressors—Acceptance tests, fourth edition, July 1, 2009; IBR approved for appendix A to this subpart.

(2) ISO 1217:2009/Amd.1:2016(E), Displacement compressors—Acceptance tests (fourth edition, July 1, 2009), AMENDMENT 1: Calculation of isentropic efficiency and relationship with specific energy, April 15, 2016; IBR approved for appendix A to this subpart.

(3) ISO 5167-1:2022(E), Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full—Part 1: General principles and requirements, third edition, June 2022; IBR approved for appendix A to this subpart.

(4) ISO 9300:2022(E), Measurement of gas flow by means of critical flow nozzles, third edition, June 2022; IBR approved for appendix A to this subpart.