An exception to one or more of the requirements contained in §§ 1306.32, 1306.33, 1306.34, and 1306.35 will be granted only if the Director of the Office of Head Start determines, on the basis of supporting evidence, that the grantee made a reasonable effort to comply with the requirement but was unable to do so because of limitations or circumstances of a specific community or communities served by the grantee.