Cases from cite.case.law:

SOLIS, U. S. v. LAURELBROOK SANITARIUM AND SCHOOL, INC., 642 F.3d 518 (6th Cir. 2011)

. . . . §§ 570.31-37. . . .

ADVANTAGE MEDIA, L. L. C. v. CITY OF HOPKINS,, 379 F. Supp. 2d 1030 (D. Minn. 2005)

. . . (same), with id. at §§ 570.29 (construction signs may have 50 square feet and variable time limit); 570.31 . . .

In R. LOTT,, 196 B.R. 768 (Bankr. W.D. Mich. 1996)

. . . . § 570.31. (Brief in Opposition to Motion of Debtor for Turnover, Docket No. 57, p. 2.) . . .

MARTIN, v. FUNTIME, INC. a, 963 F.2d 110 (6th Cir. 1992)

. . . . §§ 570.31-.49 (1991). . . .

McLAUGHLIN, v. McGEE BROTHERS COMPANY, INC. McLAUGHLIN, v. WENDELL S WOODWORK, INC., 681 F. Supp. 1117 (W.D.N.C. 1988)

. . . . §§ 570.31-38. . . . not permitted and for more hours than permitted by § 3(Z) and Child Labor Regulation 3 [29 C.F.R. § 570.31 . . .

MARSHALL, v. LANE PROCESSING, INC., 606 F.2d 518 (8th Cir. 1979)

. . . . § 570.31. . . .

J. BRENNAN, v. CORREA, Jr. d b a s s De No. a, 513 F.2d 161 (8th Cir. 1975)

. . . . § 570.31 et seq. Again appellee promised future compliance with the Act. . . .