Interpretation ID: aiam2580
1135 Olivaire Lane
St. Louis
Missouri 63132;
Dear Mr. Kourik: This responds to your March 24, 1977, letter asking whether Standar No. 107, *Reflecting Surfaces*, incorporates by reference the SAE Recommended Practice J941 as of November 1965 or as amended through February 1975.; As you note in your letter, Part 571.5 (49 CFR 571.5) of ou regulations establishes guidelines for materials incorporated by reference. That section states that materials which are subject to change, such as the SAE Recommended Practice you mention, are incorporated by reference as they are in effect on the date of adoption of the standard unless otherwise specified. Standard No. 107 refers specifically to the 1965 version of the SAE Recommended Practice. Subsequent amendments of that document by the SAE Technical Committee have no effect upon the Federal Standard.; Thank you for your offer of assistance in amending Standard No. 107 t reflect more recent changes in the SAE Recommended Practice. We Will keep your offer in mind should we determine that a change in the standard is warranted.; Sincerely, Frank Berndt, Acting Chief Counsel