Section 1698.2 - Requests for advisory opinions(a) Any male born after December 31, 1959 who has attained 18 years of age may request an advisory opinion as to his liability to register under MSSA. A parent or guardian of such person who is unable to make a request for an advisory opinion may request an advisory opinion for him. Any Federal, state or municipal governmental agency may request an advisory opinion as to the liability of any male person born after December 31, 1959 who has attained 18 years of age to register under MSSA.(b) Requests for advisory opinions shall be in writing and addressed to Director of Selective Service, ATTN: SIL, P.O. Box 94638, Palatine, IL 60094-4638. With respect to the person concerning whom an advisory opinion is requested, the following should be furnished: full name, address, date of birth, Social Security Account Number, basis for the opinion that the registration requirement is inapplicable to him, and, if applicable, basis for his assertion that his failure to register ". . . was not a knowing and willful failure to register."52 FR 24460, July 1, 1987, as amended at 65 FR 47670 , Aug. 3, 2000