Associate justices shall have precedence according to the seniority of their commissions. Justices whose commissions bear the same date shall have precedence according to seniority in age.
28 U.S.C. § 4
HISTORICAL AND REVISION NOTES Based on title 28, U.S.C., 1940 ed., §322 (Mar. 3, 1911, ch. 231, §216, 36 Stat. 1152).Minor changes in phraseology were made.