Amendment No. 257. The program change to § 279.3(a)(4) shall be effective September 14, 1984.
Amendment No. 274. The program change of Amendment No. 274 at § 279.10(d) is effective retroactively to December 23, 1985.
Amendment No. 334. The program changes made to part 279 by this amendment are effective February 1, 1992.