Mo. Code Regs. tit. 4 § 265-2.324Download PDFCurrent through Register Vol. 49, No. 21, November 1, 2024.Section 4 CSR 265-2.324 - Changes to Highway-Rail Grade Crossing Active Warning Devices (Renumbered)4 CSR 265-2.324 AUTHORITY: section 622.027, RSMo Supp. 1997.* Original rule filed June 22, 1998, effective Feb. 28, 1999. Renumbered to 7 CSR 265-8.324 by Missouri Register September 17, 2018/Volume 43, Number 18, effective 10/31/2018*Original authority: 622.027, RSMo 1985, amended 1993, 1995.