If you are requesting a classification of an item described in paragraph 740.(b)(2) or (b)(3), then a classification request is required. If you are requesting a classification of an item described in paragraph 740.17(b)(1) (in other words, the item is not described in either Section 740.17(b)(2) or (b)(3)), a Supplement No. 6 questionnaire is not required as a supporting document. Provide sufficient information about the item (e.g., technical data sheet and/or other explanation in a separate letter of explanation) for BIS to determine that the item is described in paragraph 740.17(b)(1). If you are not sure that your product is authorized as 740.17(b)(1) and you want BIS to confirm that it is authorized under 740.17(b)(1), providing answers to the questions set forth in Supplement No. 6 to part 742 with your request should provide BIS with sufficient information to make this determination.