Download the Code of Federal Regulations in XML.
The Electronic Code of Federal Regulations (e-CFR) is a regularly updated, unofficial editorial compilation of CFR material and Federal Register amendments produced by the National Archives and Records Administration's Office of the Federal Register (OFR) and the Government Publishing Office.
Parallel Table of Authorities and Rules for the Code of Federal Regulations and the United States Code
Text | PDF
Find, review, and submit comments on Federal rules that are open for comment and published in the Federal Register using Regulations.gov.
Purchase individual CFR titles from the U.S. Government Online Bookstore.
Find issues of the CFR (including issues prior to 1996) at a local Federal depository library.
Electronic Code of Federal Regulations
Title 16: Commercial Practices
To determine the substantial equivalency of processed used oil with new oil for use as engine oil, manufacturers or their designees must use the test procedures that were reported to the Commission by the National Institutes of Standards and Technology (“NIST”) on July 27, 1995, entitled “Engine Oil Licensing and Certification System,” American Petroleum Institute (“API”), Publication 1509, Thirteenth Edition, January 1995. API Publication 1509, Thirteenth Edition has been updated to API Publication 1509, Fifteenth Edition, April 2002. API Publication 1509, Fifteenth Edition, April 2002, is incorporated by reference. This incorporation by reference is approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies of the materials incorporated by reference may be obtained from: API, 1220 L Street, NW., Washington, DC 20005. Copies may be inspected at the Federal Trade Commission, Consumer Response Center, Room 130, 600 Pennsylvania Avenue, NW., Washington, DC 20580, or at the National Archives and Records Administration (“NARA”). For information on the availability of this material at NARA, call (202) 741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
[72 FR 14413, Mar. 28, 2007]