Traffic. To amend sec. 13 (c) of District of Columbia traffic acts, report to accompany S. 3161 [to amend sec. 13 (c) of act to provide for regulation of motor-vehicle traffic in District of Columbia and so forth, approved Mar. 3, 1925, as amended, so as to give commissioners of District of Columbia power to suspend or revoke right of any nonresident person to operate motor vehicle in District, of Columbia for any cause that they deem sufficient]; submitted by Mr. King.