The Research and Special Programs Administration (RSPA) is making a lengthy (145 page) amendment to hazardous materials (HazMat) transportation regulations in order to maintain alignment with recent changes to the International Maritime Dangerous Goods (IMDG) Code and other international requirements. The amendments come into effect on January 1, 2005, with required compliance generally delayed until January 1, 2006. 69 Fed. Reg. 76043 (HK Law).