United States securities and exchange commission logo October 14, 2021 James Todd Vice President & Corporate Controller Landstar System Inc. 13410 Sutton Park Drive South Jacksonville, FL 32224 Re: Landstar System Inc. Form 10-K for the Fiscal Year ended December 26, 2020 Filed February 23, 2021 File No. 000-21238 Dear Mr. Todd: We have completed our review of your filing. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Energy & Transportation